Results 31 to 40 of about 21,684 (301)

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

, 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, Tan, M. L., Edwards, Lyndon, Irving, PE, Brouard, J, Liljedahl, C.D.M., Zanellato, O., Fitzpatrick, M. E., Zhang, Xiang, Fitzpatrick, M.E., Brouard, J., Ganguly, S, Liljedahl, C. David M., Ganguly, S., Zanellato, O, Irving, P.E., Lin, J., Tan, ML, Liljedahl, C. D. M., Edwards, L., Fitzpatrick, Michael E., Zhang, X.; id_orcid, Ganguly, Supriyo, Zhang, X., Zhang, X, Edwards, L, Zanellato, Oliver, Lin, J, Irving, P. E., Irving, Phil E., Tan, M.L., Fitzpatrick, ME   +31 more
core   +1 more source

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

Fracture 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, S. Pommier, E. Galenne, S. Courtin   +3 more
doaj   +2 more sources

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

, 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, Nistor, Ionel, Caperaa, Serge   +2 more
core   +1 more source

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

, 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, Ortner Christoph, Ortner, Christoph, Negri, M, Ortner, C   +4 more
core   +1 more source

Micromechanisms of short fatigue crack growth in an Al-Si piston alloy [PDF]

, 2014
The short fatigue crack growth behaviour of a model cast aluminium piston alloy has been investigated. This has been achieved using a combination of fatigue crack replication methods at various intervals during fatigue testing and post-mortem analysis of
T.O. Mbuya, P.A.S. Reed, Reed, P.A.S., Mbuya, Thomas O.   +3 more
core   +1 more source

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

Comptes 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, Ammar, Amine, Zouari, Bassem   +2 more
doaj   +1 more source

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

Fracture 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 ...
Yury Matvienko, Nataliya Popova, Evgeny Morozov   +2 more
doaj   +3 more sources

Fatigue crack growth in thin notched woven glass composites under tensile loading. Part I: experimental [PDF]

, 2011
Helicopter blades are made of composite materials mainly loaded in fatigue and have normally relatively thin skins. A through-the-thickness crack could appear in these skins.
Barrau, Jean-Jacques, Bizeul, Matthieu, Bouvet, Christophe, R. Cuenca, J.J. Barrau, Cuenca, Rémy, M. Bizeul, C. Bouvet   +7 more
core   +1 more source

Crack paths in soft thin sheets

Fracture 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, Andrea Carpinteri, Federico Artoni   +2 more
doaj   +1 more source

Crack paths in composite materials [PDF]

Engineering Fracture Mechanics, 2010
Composites are often exposed to harsh loading conditions. This may lead to crack formation and propagation. In this paper an algorithm is described to predict the path of pre-existing cracks in homogeneous materials, based on an incremental approach. The approach is shown to also deal with the highly heterogeneous behaviour of periodically distributed ...
Patrício, M., Mattheij, R. M. M.
openaire   +4 more sources