A method to compute mixed‐mode stress intensity factors for nonplanar cracks in three dimensions
Sign Up to like & getrecommendations! Published in 2020 at "International Journal for Numerical Methods in Engineering"
DOI: 10.1002/nme.6432
Abstract: Methods to compute the stress intensity factors along a three‐dimensional (3D) crack front often display a tenuous rate of convergence under mesh refinement or, worse, do not converge, particularly when applied on unstructured meshes. In… read more here.
Keywords: crack front; method; intensity factors; stress intensity ... See more keywords
The determination of the stress intensity factor solutions for the new pipe-ring specimen using FEA
Sign Up to like & getrecommendations! Published in 2018 at "Archive of Applied Mechanics"
DOI: 10.1007/s00419-018-1481-8
Abstract: For safe transport and reliable supply of petrochemical substances, it is crucial to ensure the structural integrity of the equipment, pipelines in particular. Regarding the large diameters and high mass per distance, pipelines for natural… read more here.
Keywords: ring specimen; stress intensity; pipe ring; intensity factor ... See more keywords
Antiplane shear crack in a functionally graded material strip with surface elasticity
Sign Up to like & getrecommendations! Published in 2021 at "Archive of Applied Mechanics"
DOI: 10.1007/s00419-021-01948-8
Abstract: When the dimension of a structure falls to the micro-/nanoscale, surface effect is significant and plays a key role in affecting the mechanical behavior. This article studies the influence of surface elasticity on the stress… read more here.
Keywords: stress intensity; surface; surface elasticity; antiplane shear ... See more keywords
Numerical analysis of natural frequency and stress intensity factor in Euler–Bernoulli cracked beam
Sign Up to like & getrecommendations! Published in 2019 at "Acta Mechanica"
DOI: 10.1007/s00707-019-02492-x
Abstract: In this paper, the evaluation procedures of the natural frequency and the stress intensity factor in the opening mode are established for the Euler–Bernoulli cracked beam by using (a) a technique in the framework of… read more here.
Keywords: natural frequency; frequency; intensity factor; frequency stress ... See more keywords
Mixed-mode computation of the transient dynamic stress intensity factor for multiple interface cracks
Sign Up to like & getrecommendations! Published in 2019 at "Journal of The Brazilian Society of Mechanical Sciences and Engineering"
DOI: 10.1007/s40430-019-2071-6
Abstract: In this paper, the transient dynamic stress intensity factors are estimated for multiple cracks which are located at the interface between a nonhomogeneous elastic half-plane and an elastic half-plane. The material properties of the nonhomogeneous… read more here.
Keywords: dynamic stress; intensity; intensity factors; stress intensity ... See more keywords
Evaluation of notch stress intensity factors by the asymptotic expansion technique coupled with the finite element method
Sign Up to like & getrecommendations! Published in 2018 at "Applied Mathematical Modelling"
DOI: 10.1016/j.apm.2018.05.011
Abstract: Abstract A characteristic analysis method coupled with the finite element method is proposed to calculate stress intensity factors for V-notches, in which the notched structure is divided into a singular stress sector and the remained… read more here.
Keywords: finite element; method; intensity factors; stress ... See more keywords
Contour integral approaches for the evaluation of stress intensity factors using displacement discontinuity method
Sign Up to like & getrecommendations! Published in 2017 at "Engineering Analysis With Boundary Elements"
DOI: 10.1016/j.enganabound.2017.05.008
Abstract: Abstract The stress intensity factors (SIFs) are of great importance for the determination of stress and displacement fields near crack tip and the prediction about crack propagations. In the context of linear elastic fracture mechanics… read more here.
Keywords: contour integral; intensity factors; stress; stress intensity ... See more keywords
Stress intensity factors of square cracks in one-layered transversely isotropic halfspaces subject to internal expansion or tensile traction
Sign Up to like & getrecommendations! Published in 2021 at "Engineering Analysis With Boundary Elements"
DOI: 10.1016/j.enganabound.2021.08.005
Abstract: Abstract This paper studies the stress intensity factors of square cracks horizontally placed in one-layered transversely isotropic halfspaces using the dual boundary element method (DBEM). This DBEM uses the point load fundamental solution of a… read more here.
Keywords: stress intensity; square cracks; transversely isotropic; intensity factors ... See more keywords
Multiple cracks failure rule for TBM cutterhead based on three-dimensional crack propagation calculation
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DOI: 10.1016/j.engfailanal.2018.07.002
Abstract: Abstract Practically, there is multiple cracks interpenetrating in TBM cutterhead, which gives rise to its failure prematurely. While the existing theoretical formulas and calculating methods cannot calculate its fatigue failure process under dynamic loading. In… read more here.
Keywords: multiple cracks; intensity factor; stress intensity; failure ... See more keywords
Experimental and numerical analysis of size effects on stress intensity in anisotropic porous materials
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DOI: 10.1016/j.engfailanal.2019.04.009
Abstract: Abstract A prominent size effect has previously been reported for the fracture behaviour of brittle porous materials, with smaller specimens behaving quite differently to their larger counterparts. In such materials, the size of the K-dominant… read more here.
Keywords: stress intensity; porous materials; experimental numerical; analysis ... See more keywords
The beneficial effect of full or partial autofrettage on the combined 3-D stress intensity factors for inner radial crack arrays in a spherical pressure vessel
Sign Up to like & getrecommendations! Published in 2017 at "Engineering Fracture Mechanics"
DOI: 10.1016/j.engfracmech.2017.01.032
Abstract: Abstract The distributions of the combined 3-D Stress Intensity Factor (SIF), KIN = KIP + KIA, due to both internal pressure and autofrettage along the front of radial crack arrays emanating from the bore of an overstrained spherical pressure… read more here.
Keywords: autofrettage; radial crack; effect; stress intensity ... See more keywords