Results 21 to 30 of about 1,291,299 (286)

Weld residual stress effects on fatigue crack growth behaviour of aluminium alloy 2024-T351 [PDF]

open access: yes, 2008
The interaction between residual stress and fatigue crack growth rate has been investigated in middle tension and compact tension specimens machined from a variable polarity plasma arc welded aluminium alloy 2024-T351 plate.
Liljedahl, CDM   +31 more
core   +1 more source

Numerical implementation of the eXtended Finite Element Method for dynamic crack analysis [PDF]

open access: yes, 2008
A numerical implementation of the eXtended Finite Element Method (X-FEM) to analyze crack propagation in a structure under dynamic loading is presented in this paper.
Pantalé, Olivier   +2 more
core   +1 more source

Crack tip fields in elastic-plastic and mixed mode I+II+III conditions, finite elements simulations and modeling [PDF]

open access: yesFracture and Structural Integrity, 2015
This paper is devoted to the analysis of the load path effect on I+II+III mixed mode fatigue crack propagation in a 316L stainless steel. Experiments were conducted in mode I+II and in mode I+II+III.
F. Fremy   +3 more
doaj   +2 more sources

Fatigue crack initiation and growth on a steel in the very high cycle regime with sea water corrosion [PDF]

open access: yes, 2010
The authors acknowledge Arts et Métiers ParisTech and Foundation Arts et Métiers for the financial support of P.C. Paris’ stay at LAMEFIP. They acknowledge Vicinay Cadenas S.A.
PARIS, Paul C.   +6 more
core   +1 more source

Predicting the crack path in a wedge under a concentrated tensile force by means of variational principle

open access: yesFracture and Structural Integrity, 2019
Variational principle of brittle fracture mechanics is employed to predict the crack path in an infinite wedge under a concentrated tensile force. The weight function in basic equation of variational problem is assumed to be proportional to the maximum ...
Nataliya S. Popova   +2 more
doaj   +3 more sources

Data-driven model based on the simulation of cracking process in brittle material using the phase-field method in application

open access: yesComptes Rendus. Mécanique, 2020
Numerical simulations and parametric studies of notched rectangular specimens subjected to dynamic tensile loads were performed. The simulations were based on two-dimensional finite element analysis to predict the brittle fracture path using the phase ...
Kriaa, Yosra   +2 more
doaj   +1 more source

Crack paths in soft thin sheets

open access: yesFracture and Structural Integrity, 2019
Highly deformable materials (elastomers, gels, biological tissues, etc.) are ubiquitous in nature as well as in technology. The understanding of their flaw sensitivity is crucial to ensure a desired safety level.
Roberto Brighenti   +2 more
doaj   +1 more source

Application of material forces and path independent integrals to the prediction of crack initiation and crack paths

open access: yesProcedia Structural Integrity, 2018
Abstract Next to the shape of a growing crack, it is of importance to predict the initiation of new cracks, especially in structures with stress concentrations due to e.g. holes or notches. In the past, different criteria for crack initiation have been discussed. Furthermore, cracks growing in the vicinity of such stress concentrations in general are
Paul Judt, Andreas Ricoeur
openaire   +1 more source

Fatigue crack growth of aluminium alloy 7075-T651 under non-proportional mixed mode I and II loads [PDF]

open access: yesFracture and Structural Integrity, 2016
This study aims to investigate fatigue growth behaviour in AA7075-T651 under non-proportional mixed mode I and II loads. Fatigue tests were performed under cyclic tension and torsion using a thin-walled tubular specimen with a key-hole style crack ...
Xiaobo Yu, Ling Li, Gwenaelle Proust
doaj   +2 more sources

Quasi-static crack propagation by Griffith's criterion [PDF]

open access: yes, 2008
We consider the propagation of a crack in a brittle material along a prescribed crack path and define a quasi-static evolution by means of stationary points of the free energy. We show that this evolution satisfies Griffith's criterion in a suitable form
Negri, Matteo   +4 more
core   +1 more source

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