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Fracture and Structural Integrity

Frattura ed Integrità Strutturale

Diamond OA – No APC – CC BY – DOI – PKP PN – HTML+PDF - Visual Abstracts - Podcasts - Avg. 6 weeks Fracture and Structural Integrity (formerly known as Frattura ed Integrità Strutturale) is the International Journal of the Italian Group of Fracture (ISSN…

e-ISSN1971-8993
LicenceCC BY 4.0
AccessOpen access

Vol. 20, No. 77 (2026)

Full table of contents

July 2026. Published on April 3, 2026.

Analytical, computational and physical models Views: 335 Downloads: 241 pp. 45-55

On the relationship between crack initiation angle and loading equivalent angle for asymmetric Three-Point Bend Specimens under mixed-mode I/II loading based on GMPZR criterion

Mujebur Rehaman, Manjunath Patel Gowdru Chandrashekarappa, Mohan T R, Shashidhar K Kudari, Sharanaprabhu C M

In this work, the prediction of crack initiation angle (θo) under mixed mode (I/II) load is estimated from the generalized minimum plastic zone radius (GMPZR) criterion. The paper presents a detailed study on the crack-tip plastic core for…

Analytical, computational and physical models Views: 214 Downloads: 86 pp. 230-246

Modeling subgrain structure evolution during heat treatment

Nikita Kondratev, Dmitry Bezverkhy, Matvej Baldin

This paper presents a novel modification of the multilevel statistical model for describing the subgrain boundary migration that can explicitly account for the topology of subgrain structures in the form of Laguerre polyhedra. The…

Environmentally-assisted fracture Views: 340 Downloads: 214 pp. 56-77

Effect of Corrosion Damage on the Fatigue Behavior of S460NL High-Strength Steel under Cyclic Loading

Stanislav Seitl, Mohammad Sami Al Khazali, Lucie Malikova, Vít Křivý, Miroslav Vacek

The present study investigates the influence of corrosion exposure on the fatigue behavior of S460NL high-strength structural steel, a material that is frequently utilized in offshore and civil engineering structures. Accelerated corrosion…

Fatigue and Fracture of metallic alloys Views: 23 Downloads: 8 pp. 340-361

Investigating the fracture and deformation behaviour of pre-strained Grade 91 steel under small punch loading

Sarthok Chandra Pandit, Nasrul Azuan Alang, Juliawati Binti Alias, Mohd Firdaus Bin Hassan, Asnul Hadi Bin Ahmad, Mohd Shamil Shaari, Zhao Lei

Various failure modes induce localized internal damage and stress concentration sites in power plant components, causing additional plasticity that degrades material strength. Effect on such localized plasticity on components durability…

Fatigue and Fracture of metallic alloys Views: 127 Downloads: 113 pp. 120-137

Microstructure, tensile and fractographic behavior of friction stir welded joints AA6061 and AA2024

C N Vikas, N. Nagesha, Manjunath Vatnalmath, Mr SathyaNarayana N

The present study focused on the evaluation of critical influencing parameters of the FSW of AA6061-T6 and AA2024-T351 alloys. The materials properties of AA6061-T6 are heat-treatable alloys possessing properties of good resistance to…

Fatigue and Fracture of metallic alloys Views: 272 Downloads: 187 pp. 71-88

Application-driven optimization of Ti-6Al-4V alloy via customized heat treatments

Andrea Trombetta, Cesare Certini, Luca Marco Pasini, Marco Virginio Boniardi, Luca Rosaspina, Edoardo Scabini, Andrea Casaroli

This paper examines the influence of controlled heat treatments on the mechanical behaviour of Ti-6Al-4V (Grade 5 Titanium alloy) to improve its performance in structural and high performance applications. Ti-6Al-4V is widely used in…

Fatigue and Fracture of non metallic materials Views: 369 Downloads: 178 pp. 27-44

Effect of specimen size and type on real-mode-I fracture toughness of hooked-end steel fiber-reinforced concrete

Aya S.S. El-Sayed, Ahmed A. Elakhras, Hossam El-Din M. Sallam, Ashraf H. Elsafoury

This paper studied the effects of specimen size and type on the real-mode-I fracture toughness (KIC )of steel fiber-reinforced concrete (SFRC) specimens. Mode I KIC tests were performed using semicircular bend (SCB) and center-cracked…

Fatigue and Fracture of non metallic materials Views: 112 Downloads: 86 pp. 217-229

Flexural performance of FDM-fabricated PLA composites reinforced with short carbon fiber

R. Keshavamurthy, Raghu Yogaraju, G. S. Pradeep Kumar, Mallikarjun Biradar, B. K. Pavan kumar, S. Mohan Kumar, Shijo Thomas

Adding short carbon fiber reinforcement to thermoplastic matrices can improve the mechanical performance of additively manufactured polymer-based composites. This work examines the flexural behavior of Fused Deposition Modeling…

Fatigue and Fracture of non metallic materials Views: 141 Downloads: 95 pp. 138-172

Phenomenological models of residual mechanical properties of polymer composites under fatigue loading: review, analysis of descriptive ability and classification

Oleg Staroverov, Artur Mugatarov, Anastasia Sivtseva, Valeriy Wildemann

In this work, a review and mathematical analysis of phenomenological models of residual strength and residual stiffness of polymer composite materials under fatigue loading have been carried out. The methodology of the analysis is…

Fatigue and Fracture of non metallic materials Views: 137 Downloads: 73 pp. 207-216

Preparation and enhanced mechanical properties of epoxy resin modified with pyrolysis bio-oil

Natalia V Boychenko

This study investigates the modification of epoxy resins with pyrolysis bio-oils derived from plant waste, aiming to enhance mechanical performance. A method for epoxy resin modification using bio-oil is proposed, including techniques for…

Integrity of materials and structures Views: 141 Downloads: 86 pp. 247-264

Stress intensity factors for through clad and underclad defects in a WWER type reactor pressure vessel in pressurised thermal shock analysis

Vitalii Antonchenko, Yaroslav Dubyk, Volodymyr Iasnii

This study develops stress intensity factor (SIF) solutions for cladded WWER reactor pressure vessel nozzles subjected to pressurised thermal shock loading. Although finite element analysis is widely used for fracture assessment…

Integrity of materials and structures Views: 150 Downloads: 93 pp. 89-106

Mechanical and tomographic characterisation of recycled Carbon Fibre Reinforced Polymer (rCFRP) using a fully mechanical environmentally friendly process

Andrea Casaroli, Marco Virginio Boniardi, Edoardo Scabini

The widespread use of carbon fibre-reinforced polymer (CFRP) composites in sectors such as aerospace and aviation calls for the adoption of sustainable recycling protocols. This research evaluates the mechanical and tomographic…

Integrity of materials and structures Views: 237 Downloads: 137 pp. 173-206

Mechanical characterization and crack propagation in Additively Manufactured Polymers using Digital Image Correlation: a review

Taoufik Hachimi, Najat Zekriti, Fouad Ait Hmazi, Hamza Bagar, Hatim El Assad, Nassima Naboulsi

While Additive Manufacturing (AM) of polymers has matured from rapid prototyping to functional production, the layer-wise fabrication process introduces significant mechanical anisotropy and microstructural heterogeneity, which complicates…

Integrity of materials and structures Views: 66 Downloads: 25 pp. 316-339

Parametric analysis of carbon nanofiber effects on mechanical properties and abrasion resistance of GF/PPS hybrid composites

Suresha B, Arun Y C, Ravishankar R, Pradeep Kumar V G, Tejas M R

The focus of this research was to investigate the effects of carbon nanofiber (CNF) reinforcement on the mechanical performance, interfacial characteristics, and abrasive wear behavior of short glass fiber/polyphenylene sulfide (GF/PPS)…

SI: Russian mechanics contributions for Structural Integrity Views: 203 Downloads: 145 pp. 13-26

Effect of continuous carbon fiber layup architecture on tensile performance of hybrid FDM composites

Evgeniy Lobov, Mikhail Tashkinov

Hybrid continuous fiber–reinforced composites produced by fused deposition modeling (FDM) offer a promising solution for lightweight load-bearing structures. However, their mechanical performance is strongly governed by internal…

SI: Russian mechanics contributions for Structural Integrity Views: 64 Downloads: 22 pp. 281-297

Effect of ultrasonic welding conditions and energy director thickness on structure and properties of lap-joints of PEEK-based composites reinforced with short carbon fibers

Sergey Panin, Vladislav Alexenko, Alexey Zelenkov, Dmitry Buslovich, Lyudmila Kornienko, Shaowei Lu

The aim of this study was to investigate the effect of thickness of energy director (EDs) and ultrasonic welding (USW) process parameters on structure formation and interlaminar shear strength (LSS) values of lap-joints of composite…

SI: Russian mechanics contributions for Structural Integrity Views: 270 Downloads: 163 pp. 1-12

Multimodal residual stress evaluation following one-sided dimpling in a Ti-6Al-4V alloy plate

Igor Zorin, Vladimir Pisarev, Svyatoslav Eleonsky, Aleksandr Elkin, Galina Tyurina, Eugene Statnik, Alexey Salimon, Alexander Korsunsky

Residual stress significantly influences the mechanical performance, fatigue resistance, and structural reliability of titanium alloys used in engineering applications. This study investigates the residual stress distribution induced by…

SI: From Microcracks to Structural Failure: Emerging Challenges in Fracture and Structural Integrity Views: 216 Downloads: 151 pp. 107-119

Experimental and numerical investigations of lattice structures

Liviu Marsavina, Mihai Marghitas, Cosmin Marsavina, Davide D’Andrea, Dario Santonocito, Giacomo Risitano

The present work investigates the compressive mechanical response of three lattice structures manufactured via VAT photopolymerization. A bio-inspired architecture, derived from the observation of Euplectella aspergillum, was compared with…

SI: From Microcracks to Structural Failure: Emerging Challenges in Fracture and Structural Integrity Views: 55 Downloads: 32 pp. 298-315

Validation of Notch-Stress Intensity Factor, Strain Energy Density and Effective Notch Stress approaches in fatigue life assessment of austenitic steel welded joints

Santi Marchetta, Pasqualino Corigliano, Giulia Palomba, Giacomo Risitano, Dario Santonocito

The purpose of this work is to validate the N-SIF, SED and ENS approaches for the fatigue design of austenitic stainless steel welded joints. Literature fatigue data for cruciform welded joints, originally expressed in terms of nominal…

SI: From Microcracks to Structural Failure: Emerging Challenges in Fracture and Structural Integrity Views: 94 Downloads: 65 pp. 265-280

Study of the influence of recycling aluminum on the cyclic material behavior for chill cast AlSi7Mg0.3

Christoph Bleicher, Ahmad Qaralleh, Sascha Fliegener, Silke Sommer, Robert Kleinhans, Manuel Pintore

Automotive industry and mechanical engineering strive to drastically reduce the carbon footprint of their products. This becomes increasingly important as aluminum usage grows for lightweight, efficient components. Nevertheless, cast…

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