Results 31 to 40 of about 4,749 (165)

Predictive modelling of creep crack initiation and growth using Extended Finite Element Method (XFEM)

open access: yesFracture and Structural Integrity, 2022
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 creep fracture
Meor Iqram Meor Ahmad   +3 more
doaj   +1 more source

Numerical investigation of atherosclerotic plaque rupture using optical coherence tomography imaging and XFEM [PDF]

open access: yes, 2018
Myocardial infarction contributes to most fatalities in which atherosclerotic plaque disruption is the underlying pathology. From the mechanics view point, the pulsatile blood flow in the arteries resembles a fatigue environment and generates stresses ...
Yarlagadda, Prasad K.D.V.   +4 more
core   +1 more source

eXtended finite element methods for thin cracked plates with Kirchhoff–Love theory [PDF]

open access: yes, 2010
A modelization of cracked plates under bending loads in the XFEM framework is addressed. The Kirchhoff–Love model is considered. It is well suited for very thin plates commonly used for instance in aircraft structures.
Salaün, Michel   +7 more
core   +1 more source

Lemaitre’s damage nonlocal model performance under crack initiation and propagation [PDF]

open access: yesComputer Methods in Materials Science, 2013
Modelling of ductile fracture is a rather challenging task due to the complexity of the physical phenomena involved. In ductile metals, material progressive degradation, which is strongly associated with large plastic straining, may be captured using the
Mariana R.R. Seabra   +1 more
doaj   +1 more source

A non-conformal eXtended Finite Element approach: Integral matching Xfem [PDF]

open access: yes, 2011
International audienceThis work is dedicated to the mathematical and numerical analysis of a new Xfem approach: the integral maching Xfem. It is known that the quality of the approximation and the convergence rate of Xfem type methods is broadly ...
Laborde, Patrick   +5 more
core   +1 more source

Revealing Mode I Failure Mechanisms in Adhesively Bonded Joints: An Integrated Study with the eXtended Finite Element Method and Its Coupled Approaches

open access: yesApplied Sciences
As the core load-transfer medium in bonded structures, the adhesive layer critically governs overall reliability, with Mode I fracture representing its dominant failure mechanism under tensile loading.
Xule Zhang   +4 more
doaj   +1 more source

Stress intensity factors computation for bending plates with extended finite element method [PDF]

open access: yes, 2012
The modelization of bending plates with through-the-thickness cracks is investigated. We consider the Kirchhoff–Love plate model, which is valid for very thin plates.
Salaün, Michel   +2 more
core   +1 more source

Three-dimensional crack analyses under thermal stress field by XFEM using only the Heaviside step function

open access: yesMechanical Engineering Journal, 2020
A three-dimensional crack analysis method based on XFEM using only the Heaviside step function was applied to heat transfer and subsequent thermal stress analyses of cracked structures. The proposed method employs tip elements to discretize the weak form
Toshio NAGASHIMA
doaj   +1 more source

Seismic analysis and design of tunnels within fault ground: A review

open access: yesDeep Underground Science and Engineering, EarlyView.
The research methods of seismic response of tunnels within fault ground, including field investigations, analytical solutions, physical experiments, and numerical simulations, and seismic countermeasures are discussed. The present study examines the shortcomings and limitations of the current research and design, and puts forward proposals for future ...
Xingda Wang   +6 more
wiley   +1 more source

Numerical Analysis of Crack Initiation and Propagation in an Aluminium Sample

open access: yesTechnical Transactions, 2018
This paper reports an analysis of simulated crack propagation in an aluminium sample depending on the direction of external loads. The objective of the study was to perform a numerical analysis of crack propagation as well as to determine regions which ...
Różyło Patryk
doaj   +1 more source

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