September 2019

Vol. 13, No. 50 (2019)

October 2019

The browsable journal is available at this link

Dear friends,
We have many news for our authors and our readers.
First of all, due to the high number of submissions, it was necessary to deeply transform the organization of the Journal. We canceled the board of Associate Editors. In these years, the members of this board did great work, continuously suggesting new ideas to further improve the journal and we are deeply grateful to Alfredo Navarro, Thierry Palin Luc, Luca Susmel and John Yates for their service for FIS. Now, we created some sections and, for the next submissions, all the authors will be asked to choose a section during the submission process. We activated a “Section Editor panel” that will actively help the Editor in Chief and we wish to welcome the Section Editors, Marco Boniardi, Nicola Bonora, Milos Djukic, Stavros Kourkoulis, Liviu Marsavina, Pedro Moreira: we are sure that their contribution will help the journal to achieve new and better results. In addition, we wish to welcome the new Co-Editor in Chief, Filippo Berto: his experience in the editorial processing and managing will let great improvements.
Among the new services, we can remember:
- The activation of the “Categories”: all the published papers are now categorized with one category at least and, selecting one of the categories available under the section “Browse” in the journal website, all the readers will be able to find immediately the papers focused on the selected category;
- Visual Abstracts: all the visual abstracts are both linked to the corresponding papers and are also available in the dedicated YouTube channel. Now, in the YouTube channel, each Visual Abstract will be linked to the paper with the keywords as Tags, improving in this way the visibility both of Visual Abstracts and papers.
Considering that FIS is characterized by many innovative features, we decided to activate a new page of the website where all these features are collected: https://www.fracturae.com/index.php/fis/Innovation. Please do not hesitate to send us your suggestions.

Published
Pages
1–683
Contents57 items Sections16 sections
Views46,469
Downloads38,609
Advanced Manufacturing and Processing Views: 854 Downloads: 717 pp. 126-140

The Effects of Ply Orientation on Nonlinear Buckling of Aircraft composite Stiffened Panel

Ouadia Mouhat, Abdelmajid Bybi, Ahmed El Bouhmidi, Mohamed Rougui

In this paper, gradual demand for curved, stiffened panels composite emerged from carbon fiber reinforced plastics (CFRP); these are structures that are frequently used in aerospace engineering. Up to 50% of the primary structure of the…

Advanced Manufacturing and Processing Views: 799 Downloads: 546 pp. 613-622

Stress intensity factor for small embedded cracks in weldments

Paolo Livieri, Fausto Segala

In the present work, the stress intensity factor (SIF) of embedded small cracks placed at the weld toe is calculated by means of two procedures based on the Oore-Burns integral. In the first approach, the defect is considered as a circular…

Analytical, Numerical and Physical Models Views: 647 Downloads: 509 pp. 29-37

Numerical simulation of crack propagation behavior of a semi-cylindrical specimen under dynamic loading

Ghorban Khandouzi, Mohsen Mollashahi, Mojtaba Moosakhani

To design and evaluate the analytical crack propagation of a specimen under dynamic load, measurement of dynamic fracture parameters is necessary. However, analytical methods have significant complexity, and experimental methods are also…

Analytical, Numerical and Physical Models Views: 1,191 Downloads: 3,308 pp. 112-125

Using a cohesive zone modeling to predict the compressive and tensile behavior on the failure load of single lap bonded joint

Badr Benamar, Mokhtari Mohamed, Madani Kouider, Benzaama Habib

The detachment plates 2024T3 by an Araldite adhesive is studied in this work by using the finite element method to predict the damage in traction and compression behavior under the effect of geometrical parameters such as the lap length…

Analytical, Numerical and Physical Models Views: 609 Downloads: 632 pp. 276-285

A nonlinear elasto-plastic analysis of Reissner-Mindlin plates by finite element method

Kamel Meftah, Lakhdar Sedira

In this paper, a finite element simulation of nonlinear elasto-plastic deformations of Reissner-Mindlin bending plates is described. The previously proposed four-node Q4g element with transverse energy of shearing for thick bending plates…

Analytical, Numerical and Physical Models Views: 809 Downloads: 497 pp. 286-299

Vibration analysis of functionally graded plates with porosity composed of a mixture of Aluminum (Al) and Alumina (Al2O3) embedded in an elastic medium

Hayat Saidi, Meriem Sahla

In this scientific work, a new shear deformation theory for free vibration analysis of simply supported rectangular functionally graded plate embedded in an elastic medium is presented. Due to technical problems during the fabrication…

Analytical, Numerical and Physical Models Views: 772 Downloads: 513 pp. 209-230

Finite Element Analysis and ANFIS investigation of seismic behavior of sandwich panels with different concrete material in two story steel building

Faezeh Jafari, Baitollah Badarloo

This study aimed to apply sandwich panel in a two-story steel building to improve its behavior. Sandwich concrete panels consist of three basic components including wires, insulating layer and concrete cover. This research studied the…

Analytical, Numerical and Physical Models Views: 1,462 Downloads: 3,218 pp. 331-341

Using a Hashin Criteria to predict the Damage of composite notched plate under traction and torsion behavior

Fouzia Larbi Chaht, Mohamed Mokhtari, Habib Benzaama

The volume fraction effect of carbon fiber in an epoxy matrix in the vicinity of the notch on the traction and torsion behavior were studied. This volume fraction which increases with the reduction of the thickness is a parameter which…

Analytical, Numerical and Physical Models Views: 1,372 Downloads: 537 pp. 667-683

Numerical simulation of subsurface defect identification by pulsed thermography and improvement of this technique for noisy data

Oleg Plekhov, Anastasiya Kostina, Sergey Aizikovich

Pulsed thermography is an active non-destructive technique which uses optical excitation source to stimulate heating of the object under investigation. This work is devoted to the simulation of the pulsed thermography method in a steel…

Environmentally Assisted Fracture Views: 861 Downloads: 488 pp. 21-28

Stress corrosion behavior of X80 pipeline steel in natural seawater with different dissolved oxygen

Xiaoguang Huang, Zhongying Han

Slow strain rate stress corrosion test of X80 steel in the natural seawater are carried out to study to effect of dissolved oxygen on the sensitivity of stress corrosion. Scanning electron microscope (SEM) combined electrochemical…

Environmentally Assisted Fracture Views: 674 Downloads: 513 pp. 141-148

Corrosion’s impact on wire rope strand response – Comparison with a theoretical predictive model

Amal TIJANI, Meryam Meknassi, Hassan Chaffoui, Mohamed El Ghorba

In this work, we investigate the behavior of wire ropes subject to corrosion damage. The method is based on accelerated corrosion. Decreasing ultimate force and a loss in rigidity was observed from the static tensile tests made on the…

Failure Analysis, Case Studies and Forensic Engineering Views: 803 Downloads: 607 pp. 54-67

Characterization of stress-strain state in gas turbine engine compressor disc taking into account damage accumulation

Natalia V Boychenko, Ivan Ishtyryakov

The stress-strain state analysis of the gas turbine engine compressor disk was carried out taking into account damage accumulation under various loading conditions in the temperature range. Characterization of the constraint effects was…

Fatigue Views: 848 Downloads: 541 pp. 310-318

The effect of temperature on low-cycle fatigue of shape memory alloy

Volodymyr Iasnii, Petro Yasniy, Denys Baran, Anna Rudawska

The influence of temperature on the fatigue properties of pseudoelastic NiTi under low-cycle fatigue are investigated. Tests were performed under the uniaxial tensile deformation (pull-pull) at 0°С and 20°С which is above the austenite…

Fracture Views: 616 Downloads: 551 pp. 38-45

Investigation of Failure Mechanism of Al2O3 Specimens Subjected to Three-Point Bending Test

Mikhail Olegovich Eremin, Igor Smolin, Alexey Kulkov, Valentina Mikushina

Experimental loading and FEM simulation-based approach at macroscale are utilized to investigate the failure mechanisms of Al2O3 ceramics. Experimental characterization of microstructure is carried out using SEM. Recently the microscale…

Fracture Views: 674 Downloads: 612 pp. 231-241

Crack growth study under thermo-mechanical loads: parametric analysis for 2024 T3 aluminum alloy

Salmi abdallah, Mohamed Elajrami, Mohamed El-Amine Slimani

Due to their severe operating conditions, many industrial components are subjected to complex combinations of cyclic mechanical stresses and thermal pressures. These combinations are responsible for the initiation and propagation of…

Fracture Views: 795 Downloads: 516 pp. 623-637

J integral computation and Limit load analysis of bonded composite repair in cracked pipes under pressure

Mohamed Belhamiani, Djamel Eddine Belhadri, Wahid Oudad, Omar Mansouri, Wahiba Nessrine Bouzitouna

In this paper, an additional criterion was introduced to evaluate the composite repair systems using the limit load analysis. The plastic collapse pressure of API 5L X65 PSL2 steel pressure vessel structure with crack defect is numerically…

Fracture Views: 682 Downloads: 455 pp. 638-648

Comparative study on the deterioration of granite under microwave irradiation and resistance-heating treatment

He Zi Shou, Qijun Hu, Junsen Zeng, Leping He, Hexi Tang, Bingsheng Li, Shunzhang Chen, Xirui Lu

To investigate the deterioration of granite under microwave irradiation and heat transfer, granite specimens were heated up to 400-1000 °C and then kept for 15 min. Uniaxial compressive strength testing results demonstrate a similar…

Reliability and Life Extension of Components Views: 812 Downloads: 706 pp. 68-85

Modeling of a cracked and repaired Al 2024T3 aircraft plate: effect of the composite patch shape on the repair performance: Effect of the composite patch shape on the repair performance.

Mohammed Baghdadi, Boualem Serier, Mokadem Salem, Bouchra Zaoui, Khacem Kaddouri

In this work the finite element method was used to analyse the composite patch shape effect of the repair performance. Unlike all the works done conducted so far in this domain, this work proposed here, takes into account the reducing…

Reliability and Life Extension of Components Views: 1,218 Downloads: 1,341 pp. 46-53

Leak-Before-Break methodology applied to different piping materials: a performance evaluation

Israel Gleybson Ferreira da Silva, Arnaldo Homobono Paes de Andrade, Waldemar Alfredo Monteiro

This paper presents a study of the application of Leak-Before-Break (LBB) to nuclear piping using three different materials. Based on the fracture mechanics, the LBB concept considers that a leakage from a crack can be detected before it…

Structural Integrity and Durability of Structures Views: 577 Downloads: 550 pp. 300-309

Experimental Research on Fracture Behavior of Concrete after High Temperature

Peng Qiu

High-strength concrete has been widely used in various complex buildings. The fracture and mechanical properties of high-strength concrete after fire have great research value. Based on the double K fracture model, the fracture properties…

Structural Integrity and Durability of Structures Views: 996 Downloads: 0 pp. 149-162

Experimental and numerical investigation of the properties of the Hot Mix Asphalt Concrete with basalt and glass fiber

Mahmoud Ameri, Mehdi Nemati, Hamid Shaker, Faezeh jafari

Abstract. In the recent decades, different kinds of fiber materials are used for improving the asphalt mixture performance. Meanwhile, different kinds of fiber are used excessively due to their desirable physical and chemical properties…

SI: Structural Integrity and Safety: Experimental and Numerical Perspectives Views: 962 Downloads: 737 pp. 184-193

Using XFEM Techniques to Predict the Damage of aluminum 2024T3 notched under tensile load

Abdallah Benzaama, Mohamed Mokhtari, Habib Benzaama, Elamine Abdelouahed, Tawfik Tamine, Kouider Madani, Amir Slamen, Mrabet Ilies

The objective of this work is to analyze some geometrical effect to predict the damage of aluminum 2024T3 structure after validate numerical model by experimental test. The mechanical of damage behaviour under tensile tests of several…

SI: Structural Integrity and Safety: Experimental and Numerical Perspectives Views: 803 Downloads: 542 pp. 264-275

Web Rotational Stiffness of Continuous Steel-Concrete Composite Castellated Beams

Carla Cristiane Silva, Rodrigo Barreto Caldas, Ricardo Hallal Fakury, Hermes Carvalho, João Victor Fragoso Dias

Continuous composite beams may suffer a global instability know as lateral distortional buckling (LDB). The design code EN 1994-1-1:2004 provides a procedure for the verification of this ultimate limit state, in which the resistant bending…

SI: Structural Integrity and Safety: Experimental and Numerical Perspectives Views: 850 Downloads: 522 pp. 242-250

Behavior of precast reinforced concrete columns subjected to monotonic short-term loading

Sebastião Salvador Real Pereira, Hermes Carvalho, João Victor Fragoso Dias, Victor Roberto Verga Mendes, Pedro Aires Montenegro

This paper presents a case study on the behavior of precast reinforced columns with non-conventional cross-section. An experimental program was developed to verify the serviceability and ultimate limit states of these columns, loaded with…

SI: Structural Integrity and Safety: Experimental and Numerical Perspectives Views: 679 Downloads: 501 pp. 602-612

Experimental fracture resistance study for cracked bovine femur bone samples

M.R.M. Aliha, Hussein Ghazi, Farkhondeh Ataei

Crack growth and brittle fracture is one of the major failure modes in bone materials and therefore understanding the fracture behavior and affecting parameters on the crack growth resistance of bone is necessary for biomechanics…

SI: Structural Integrity and Safety: Experimental and Numerical Perspectives Views: 677 Downloads: 490 pp. 649-657

Structural failure process of schistosity rock under microwave radiation at high temperatures

Leping He, Yucheng Gu, Qijun Hu, Yuan Chen, Junsen Zeng

The effects of high temperature induced by microwave radiation on the schistosity structural rock were investigated. A 1.45 kW commercial microwave system was employed to irradiate specimens to a designed temperature (300–800 °C) for 15…

SI: IGF25 – International Conference 2019 Views: 1,353 Downloads: 592 pp. 251-263

A metallurgical and thermal analysis of Inconel 625 electron-beam welded joints

Luca Romanin, Paolo Ferro, Alberto Fabrizi, Filippo Berto

Inconel 625 is a nickel-based superalloy that finds application in many industrial sectors thanks to its high strength, excellent fabricability, and outstanding corrosion resistance. It is characterized by a good weldability and often used…

SI: Fracture and Damage Detection in Masonry Structures Views: 624 Downloads: 428 pp. 194-208

Quantifying the out-of-plane response of unreinforced masonry walls subjected to relative support motion

Michele Godio, Katrin Beyer

TThe supports of out-of-plane loaded unreinforced masonry walls in buildings are subjected to a motion that is filtered and amplified by the building structure and, in some cases, can be significantly different from the ground motion.…

SI: Research activities of the Greek Society of Experimental Mechanics of Materi Views: 675 Downloads: 423 pp. 342-353

Simulation of the corrosion-induced damage on aluminum alloy 2024 specimens with equivalent surface notches

Nikolaos Alexopoulos, Nikoleta Siskou, Christina-Margarita Charalampidou, Stavros Kourkoulis

The effect of corrosion environment aggressiveness on the tensile mechanical properties degradation of AA2024-T3 was investigated. Tensile speci­­mens were pre-corroded for various exposure times to different corrosive solutions, i.e.…

SI: Research activities of the Greek Society of Experimental Mechanics of Materi Views: 683 Downloads: 587 pp. 354-369

Probabilistic geotechnical engineering analysis based on first order reliability method

Georgios Belokas

Limit equilibrium engineering analysis needs the incorporation of probabilistic approaches for the determination of soil strength statistical measures for deterministic and probabilistic analyses. For the commonly used Mohr–Coulomb…

SI: Research activities of the Greek Society of Experimental Mechanics of Materi Views: 549 Downloads: 393 pp. 370-382

An experimental study on restoration technique for the Acropolis of Athens: developing the experimental set-up for pull-out testing of titanium bars embedded in marble blocks

Ioanna Dakanali, Aikaterini Marinelli

This work aims at investigating the mechanisms activated during the ex­trac­tion of titanium bars from a marble volume (pull-out phenomenon), used for re­joining fragmented marble structural members at the monuments of the Acropolis of…

SI: Research activities of the Greek Society of Experimental Mechanics of Materi Views: 583 Downloads: 913 pp. 383-394

Experimental uncertainty budget for concrete compressive strength test based on a multifactorial analysis

Stamatia Gavela, Nikolaos Nikoloutsopoulos, George Papadakos, Dimitra Passa, Anastasia Sotiropoulou

The objective of the study is to introduce an experimental un­cer­tainty budget process for concrete compressive strength test, based on a pro­to­col that incorporates effects of multiple factors significant for the measure­ment result.…

SI: Research activities of the Greek Society of Experimental Mechanics of Materi Views: 621 Downloads: 410 pp. 395-406

A simplified damage evolution relationship and deformation character¬istics of a pozzolanic lime mortar when subjected to unloading-reloading cycles in the pre-peak region

Kostas Kaklis, Zach Agioutantis, Stelios Mavrigiannakis, Pagona Maravelaki-Kalaitzaki

Two series of uniaxial and triaxial compression tests including unloading-reloading cycles were performed under different confining press­ures, in order to study the stress-strain and the deformation behavior of a pozzolanic lime mortar…

SI: Research activities of the Greek Society of Experimental Mechanics of Materi Views: 697 Downloads: 479 pp. 407-413

Experimental and numerical study on the influence of critical 3D printing processing parameters

Nikoletta Chatzidai, Dimitrios Karalekas

In the present work the temperature profile variations generated in rectangular specimens built using the Fused Deposition Modeling (FDM) process, at different printing speeds and orientations, were investigated. The temperature recordings…

SI: Research activities of the Greek Society of Experimental Mechanics of Materi Views: 428 Downloads: 443 pp. 414-422

A SEM-X-Ray assisted experimental approach for the determination of mechanical and thermal load – induced damage in MMCs

Victor Kytopoulos, Emilios Sideridis, John Venetis, Chrysoula Riga, Alexandros Altzoumailis

An experimental technique is presented to evaluate mechanical and thermal load-induced microstructural damage, based on the Electron Probe Micro-Analysis (EPMA) principle, by which certain ana­lyti­cal potentialities of Scanning Electron…

SI: Research activities of the Greek Society of Experimental Mechanics of Materi Views: 1,057 Downloads: 525 pp. 423-437

Effect of fly ash on the corrosion performance and structural integrity of stainless steel concrete rebars in acid rain and saline environments

Angeliki Lekatou, Sofia Tsouli, Christos Nikolaidis, Spyridon Kleftakis, Ilias Tragazikis, Theodoros Matikas

The corrosion behavior of 304L stainless steel rebars in an alkaline solution simulating new concrete subjected to acid rain attack and a mildly to slightly acidic solution simulating corroded cover concrete that ex­posed the reinforcement…

SI: Research activities of the Greek Society of Experimental Mechanics of Materi Views: 540 Downloads: 461 pp. 438-450

Comparative experimental study of the mechanical and fracture properties of Portland limestone and Corsehill sandstone

Aikaterini Marinelli, Matthew Stewart

An experimental investigation of the mechanical and fracture characteristics of Portland limestone and Corsehill sandstone is undertaken, aiming at enhancing understanding of the structural behaviour of these natural building stones…

SI: Research activities of the Greek Society of Experimental Mechanics of Materi Views: 579 Downloads: 440 pp. 451-470

Double initial and caustic curves in diametrically compressed transparent discs - Application to the contact length

Christos Markides

General formulae for double initial and caustic curves (reflected and transmitted) are obtained in the case of smooth contact of two cylindrical elastic bodies of arbitrary radii. Namely, based on the method of reflected and transmitted…

SI: Research activities of the Greek Society of Experimental Mechanics of Materi Views: 746 Downloads: 587 pp. 471-480

Imaging performance of a CaWO4/CMOS sensor

Niki Martini, Vaia Koukou, George Fountos, Ioannis Valais, Ioannis Kandarakis, Christos Michail, Athanasios Bakas, Eleftherios Lavdas, Konstantinos Ninos, Georgia Oikonomou, Lida Gogou, George Panayiotakis

The aim of this study was to investigate the modulation transfer function (MTF) and the effective gain transfer function (eGTF) of a non-destruc­­tive testing (NDT)/industrial inspection complementary metal oxide semi­conductor (CMOS)…

SI: Research activities of the Greek Society of Experimental Mechanics of Materi Views: 827 Downloads: 2,152 pp. 481-496

Damage and failure of Orban’s gun during the bombardment of Constantinople walls in 1453

Aristotle Kakaliagos, Nikolaos Ninis

In this paper the bombardment of the Constantinople Theodosian Walls by the great cannon of Orban is numerically reproduced deploying Struc­tural Mechanics. Overall gun dimensions were assessed based on historical reports, whereby, the…

SI: Research activities of the Greek Society of Experimental Mechanics of Materi Views: 708 Downloads: 723 pp. 497-504

Metal foaming by powder metallurgy process: investigation of different parameters on the foaming efficiency

Ioannis Papantoniou, Helena Kyriakopoulou, Dimitrios Pantelis, Dimitrios Manolakos

Aluminium foams, produced by powder metallurgy process, have significant potential applications for uses in weight-sensitive structural parts. Problems in the production of metal foams arise from the lack of knowledge in the control of…

SI: Research activities of the Greek Society of Experimental Mechanics of Materi Views: 794 Downloads: 586 pp. 505-516

The use of acoustic emissions technique in the monitoring of fracturing in concrete using soundless chemical demolition agent

Vassilios Saltas, Despoina Peraki, Filippos Vallianatos

Soundless chemical demolition agents (SCDAs) have been used during the last decades in the demolition of boulders and concrete structures as well as in open-surface and sub-surface rock excavation, as an alternative to the use of…

SI: Research activities of the Greek Society of Experimental Mechanics of Materi Views: 564 Downloads: 416 pp. 517-525

Multi-parameter analysis of curing cycle for GNPs/glass fabric/ epoxy laminated nanocomposites

Georgios Seretis, Aikaterini Polyzou, Dimitrios Manolakos, Christopher Provatidis

In this study, a multi-parameter analysis, using Taguchi method for design of experiments, has been conducted to investigate the optimum curing conditions for GNPs/E-glass fabric/epoxy laminated nanocomposites. The independent variables in…

SI: Research activities of the Greek Society of Experimental Mechanics of Materi Views: 1,501 Downloads: 808 pp. 526-536

Use of by-products for partial replacement of 3D printed concrete constituents; rheology, strength and shrinkage performance

Michail Papachristoforou, Vasilios Mitsopoulos, Maria Stefanidou

In this paper, fly ash, ladle furnace slag and limestone filler were utilized in concrete used as material for additive manufacturing (3D printing). Fly ash and ladle furnace slag were used as a replacement of cement (30% wt.) and…

SI: Research activities of the Greek Society of Experimental Mechanics of Materi Views: 859 Downloads: 419 pp. 537-547

Fracture precursor phenomena in marble specimens under uniaxial compression by means of Acoustic Emission data

Dimos Triantis, Stavros Kourkoulis

Marble specimens are subjected to a specially designed stepwise load­­ing protocol, in an attempt to detect fracture precursor phenomena taking advantage of Acoustic Emission (AE) data. The analysis is carried out in terms of the number of…

SI: Research activities of the Greek Society of Experimental Mechanics of Materi Views: 1,134 Downloads: 1,148 pp. 548-559

Comparison of the mechanical response of B400c and B450c dual phase steel bar categories, in long terms

Charis Apostolopoulos, Argyro Drakakaki, Alkiviadis Apostolopoulos, Konstantinos Koulouris

In this work, the effects of chloride-induced corrosion on temp­core B400c and B450c steel grades are evaluated, in terms of corrosion resis­tance and mechanical characteristics, after the performance of Tensile and Low Cycle Fatigue…

SI: Research activities of the Greek Society of Experimental Mechanics of Materi Views: 492 Downloads: 427 pp. 560-572

Restoring stone monuments: Enlightening critical details by the combined use of innovative sensing techniques

Ermioni Pasiou

The experience gathered during the implementation of long series of laboratory experimental protocols, aiming to study the mechanical response of restored structural elements, is summarized. Conclusions are drawn con­cerning the proper…

SI: Research activities of the Greek Society of Experimental Mechanics of Materi Views: 904 Downloads: 503 pp. 573-583

Damage evolution in marble under uniaxial compression monitored by Pressure Stimulated Currents and Acoustic Emissions

Ilias Stavrakas, Stavros Kourkoulis, Dimos Triantis

The spatiotemporal evolution of damage in marble speci­mens under uniaxial compression is monitored using Pressure Stimulated Currents (PSCs) and Acoustic Emissions (AEs). The novelty of the study is the use of an integrated grid of…

SI: Research activities of the Greek Society of Experimental Mechanics of Materi Views: 853 Downloads: 588 pp. 584-594

Multi-response optimization of CuZn39Pb3 brass alloy turning by implementing Grey Wolf algorithm

Nikolaos Fountas, Angelos Koutsomichalis, John Kechagias, Nikolaos Vaxevanidis

Machinability of engineering materials is crucial for industrial manufacturing processes since it affects all the essential aspects involved, e.g. work­load, resources, surface integrity and part quality. Two basic ma­chin­ability…

SI: Characterisation of Crack Tip Fields Views: 837 Downloads: 546 pp. 9-19

Effect of yield stress on fatigue crack growth

Fernando Ventura Antunes, Micael Frias Borges, Pedro Prates, Ricardo Branco, Marta Oliveira

Abstract. Fatigue crack growth (FCG) depends on loading, geometry and also material properties. Since FCG is supposedly linked to crack tip plastic deformation, material’s yield stress, Y0, is an important parameter. The main objective…

SI: Characterisation of Crack Tip Fields Views: 846 Downloads: 621

Experimental characterisation of fatigue crack growth based on the CTOD measured from crack tip displacement fields using DIC

José Manuel Vasco Olmo, F.A. Díaz, F.V. Antunes, M.N. James

The current work presents an experimental study on the use of the crack tip opening displacement (CTOD) to evaluate its ability to characterise fatigue crack growth. A methodology is developed to measure and to analyse the CTOD from…

SI: Fracture Mechanics versus Environment Views: 573 Downloads: 491 pp. 98-111

Environmental effects on the reliability of an AISI 304 structure

Racim Boutelidja, Abdelmoumene Guedri, Mohammed Amine Belyamna, Bachir Merzoug

This work is based on the application of probabilistic fracture mechanics (MRP) models to predict the reliability of pressure pipelines in nuclear power reactors. The simulation of cracking of stainless steel piping under the conditions of…

SI: Fracture Mechanics versus Environment Views: 611 Downloads: 349 pp. 595-601

Effect of Environmental Conditions on the Resistance of Damaged Composite Materials

Sidi Mohammed Amine Khiat, Ramdane Zenasni, Mawloud Hamdi

The present paper proposes a strength model for unidirectional composites with Lin/Epoxy. The model assumes that, a central core of broken fibers flanked by unbroken fibers which are subject to stress concentrations from the broken fibers.…

SI: Showcasing Structural Integrity Research in India Views: 856 Downloads: 577 pp. 86-97

Crack growth based life prediction approach under LCF-HCF interaction

Aritra Sarkar, M. Okazaki, A. Nagesha, R. Sandhya

Prediction of cyclic life under low cycle fatigue - high cycle fatigue (LCF-HCF) interaction is of paramount importance in the context of structural integrity of components in the primary side of fast reactors where such damage under…

SI: Showcasing Structural Integrity Research in India Views: 819 Downloads: 472 pp. 319-330

Brittle Fracture Model Parameter Estimation for Irradiated BCC Material through Dislocation Based Crystal Plasticity Model

Kulbir Singh, Christian Robertson, Arun Kumar Bhaduri

Radiation effects lead to significant reduction in ductility during the life of the components used in nuclear reactors. Sharp change in fracture toughness at lower temperature in Body Centered Cubic (BCC) materials as compared to Face…

SI: New Trends in Fatigue and Fracture Views: 1,423 Downloads: 416 pp. 1-9

The effect of fatigue crack rate on the heat dissipation in metals under mixed-mode loading

Aleksei Vshivkov, Oleg Plekhov

The monitoring of a heat dissipation process can give an important information about kinetics of deformation process and current crack propagation rate. The work is devoted to the theoretical and experimental study of the problem. The…

SI: New Trends in Fatigue and Fracture Views: 691 Downloads: 537 pp. 163-183

Differences in the response to in-phase and out-of-phase multiaxial high-cycle fatigue loading

Jan Papuga, Martin Nesládek, Josef Jurenka

This paper discusses the phase shift effect occurring between two and more load channels of multiaxially loaded specimens. The discussion concludes that there is an extreme shortage of good experimental data that would prove the existence…