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Miscellanea Views: 893 Downloads: 469 Vol. 10, No. 35 (2016) December 29, 2015 pp. pages 441-448

Crack initiation and early propagation plane orientation of 2A12-T4 aluminum alloy under tension-torsion fatigue loading including mean tensile stress

Shi Xinhong, Zhang Jianyu, Xiao Qingshan, Liu Tianqi

The specimen fractures appearances are analyzed to investigate the effects of mean tensile stress on the fatigue crack initiation and early propagation plane orientation under axial-torsion fatigue loading for 2A12T4 aluminum alloy. The…

10.3221/IGF-ESIS.35.50

Details: Crack initiation and early propagation plane orientation of 2A12-T4 aluminum alloy under tension-torsion fatigue loading including mean tensile stress PDF

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Miscellanea Views: 791 Downloads: 405 Vol. 10, No. 35 (2016) December 29, 2015 pp. pages 405-413

Crack path simulation for cylindrical contact under fretting conditions

R.A. Cardoso, J.A. Araújo, J.L.A. Ferreira, F.C. Castro

In this work different strategies to estimate crack path for cylindrical contacts under fretting conditions are carried out. The main goal is to propose and to evaluate methodologies not only to estimate the direction of crack initiation…

10.3221/IGF-ESIS.35.46

Details: Crack path simulation for cylindrical contact under fretting conditions PDF

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Miscellanea Views: 964 Downloads: 564 Vol. 9, No. 34 (2015) September 29, 2015

Paths of interactive cracks in creep conditions

K. Nowak

The paper contains plane strain analysis of uniformly stretched plate working in creep condition. The plate contains initial defects in forms of central and/or edge cracks working in mode I. These cracks are modelled by attributing…

10.3221/IGF-ESIS.34.56

Details: Paths of interactive cracks in creep conditions PDF

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Miscellanea Views: 929 Downloads: 471 Vol. 9, No. 33 (2015) June 19, 2015 pp. pages 415-426

Comparison of two multiaxial fatigue models applied to dental implants

JM. Ayllon, C Navarro, J. Vázquez, J. Domínguez

This paper presents two multiaxial fatigue life prediction models applied to a commercial dental implant. One model is called Variable Initiation Length Model and takes into account both the crack initiation and propagation phases. The…

10.3221/IGF-ESIS.33.46

Details: Comparison of two multiaxial fatigue models applied to dental implants PDF

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Miscellanea Views: 1,597 Downloads: 1,709 Vol. 10, No. 35 (2016) December 29, 2015 pp. pages 260-270

A cohesive zone model to simulate the hydrogen embrittlement effect on a high-strength steel

G. Gobbi, C. Colombo, L. Vergani

The present work aims to model the fracture mechanical behavior of a high-strength low carbon steel, AISI 4130 operating in hydrogen contaminated environment. The study deals with the development of 2D finite element cohesive zone model…

10.3221/IGF-ESIS.35.30

Details: A cohesive zone model to simulate the hydrogen embrittlement effect on a high-strength steel PDF

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SI: Failure Analysis of Materials and Structures Views: 1,003 Downloads: 738 Vol. 16, No. 61 (2022) June 19, 2022 pp. 119-129

Predictive Modelling of Creep Crack Initiation and Growth using Extended Finite Element Method (XFEM)

Meor Iqram Meor Ahmad, Mohd Anas Mohd Sabri, Mohd Faizal Mat Tahir, Nur Azam Abdullah

In this study, a numerical strategy for predictive modelling of creep in tension tests for the rectangular plate with a single crack and CT-specimen based on the extended finite element method (XFEM) will be described in detail. A model of…

10.3221/IGF-ESIS.61.08

Details: Predictive Modelling of Creep Crack Initiation and Growth using Extended Finite Element Method (XFEM) PDF Visual Abstract

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Miscellanea Views: 1,498 Downloads: 553 Vol. 7, No. 26 (2013) September 25, 2013 pp. Pages 104-122

Crack of a helicopter main rotor actuator attachment: failure analysis and lessons learned

L. Allegrucci, F. De Paolis, A. Coletta, M. Bernabei

A Light Utility Helicopter (LUH), in the course of a training flight, leaving the ground during the taxi to take off, went into an uncontrolled rolling to the right; consequently the helicopter gradually laid down on the right side. The…

10.3221/IGF-ESIS.26.11

Details: Crack of a helicopter main rotor actuator attachment: failure analysis and lessons learned PDF

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Miscellanea Views: 1,213 Downloads: 442 Vol. 11, No. 41 (2017) June 28, 2017 pp. Pages 175-182

Fracture toughness of rough and frictional cracks emanating from a re-entrant corner

Andrea Carpinteri, Andrea Spagnoli, Michele Terzano, Sabrina Vantadori

In mixed-mode conditions, the competing contribution of the different stress intensity factors predicts fracture initiation load as well as crack propagation direction. Commonly, mixed-mode fracture resistance is based on the assumption of…

10.3221/IGF-ESIS.41.24

Details: Fracture toughness of rough and frictional cracks emanating from a re-entrant corner PDF

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Miscellanea Views: 1,114 Downloads: 1,168 Vol. 9, No. 33 (2015) June 19, 2015 pp. pages 89-96

3D thickness effects around notch and crack tip stress/strain fields

R.C.O. Góes, J.T.P. Castro, M.A. Meggiolaro

Notches and cracks are usually approximately modeled as two-dimensional problems using solutions from plane elasticity to quantify localized stress/strain concentration effects around their tips. However, they may be associated with high…

10.3221/IGF-ESIS.33.12

Details: 3D thickness effects around notch and crack tip stress/strain fields PDF

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Miscellanea Views: 1,027 Downloads: 841 Vol. 10, No. 38 (2016) October 3, 2016 pp. Pages 224-230

Development of a multiaxial fatigue damage parameter and life prediction methodology for non-proportional loading

Sandip Suman, Alan Kallmeyer, John Smith

Most of the prior studies on the prediction of fatigue lives have been limited to uniaxial loading cases, whereas real world loading scenarios are often multiaxial, and the prediction of fatigue life based upon uniaxial fatigue properties…

10.3221/IGF-ESIS.38.30

Details: Development of a multiaxial fatigue damage parameter and life prediction methodology for non-proportional loading PDF

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