Results 251 to 260 of about 31,583 (288)
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Theoretical and Applied Fracture Mechanics, 2021
Abstract The evaluation of the stress intensity factors (SIFs), T-stress, and higher-order coefficients in the crack tip asymptotic field in the extended finite element method (XFEM) is investigated based on the over-deterministic displacement field fitting method.
Yufei Li, Kan Zheng
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Abstract The evaluation of the stress intensity factors (SIFs), T-stress, and higher-order coefficients in the crack tip asymptotic field in the extended finite element method (XFEM) is investigated based on the over-deterministic displacement field fitting method.
Yufei Li, Kan Zheng
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Biaxial stress effects on the elastic-plastic crack-tip displacement fields
Meccanica, 1990A plane stress, finite element analysis of the monotonic loading of a Mode I stationary crack under small scale yielding using a boundary layer approach is presented. A small-strain,J2plasticity theory is used in conjunction with a linear hardening material model.
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On the crack-tip displacement field in finite-sized plates
Engineering Fracture Mechanics, 1991Abstract The crack-tip displacement field of a central cracked plate of finite size is herein examined to determine the nature of the stress field singularity in cracked-body geometries of this kind. Two algorithms, based on a modified theory of Linear Elastic Fracture Mechanics (LEFM), are constructed for this case for use with Moire displacement ...
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Influence of fractality of fracture surfaces on stress and displacement fields at crack tips
Science in China Series E: Technological Sciences, 2008zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Bao, Tengfei +3 more
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Journal of Applied Mechanics, 2008
Abstract Thermomechanical stress and displacement fields for a propagating crack in functionally graded materials (FGMs) are developed using displacement potentials and asymptotic analysis. The shear modulus, mass density, and coefficient of thermal expansion of the FGMs are assumed to vary exponentially along the gradation direction ...
Lee, Kwang Ho +2 more
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Abstract Thermomechanical stress and displacement fields for a propagating crack in functionally graded materials (FGMs) are developed using displacement potentials and asymptotic analysis. The shear modulus, mass density, and coefficient of thermal expansion of the FGMs are assumed to vary exponentially along the gradation direction ...
Lee, Kwang Ho +2 more
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2020
The present paper shows a way to identify crack tip location (CTL) using edge detection algorithms. Arbitrary crack tip coordinates were fed to Linear Elastic Facture mechanics (LEFM) analytical models to simulate displacement fields. Then, first degree edge detection algorithms were applied to the obtained displacement fields to identify crack edges ...
Jorge G. Díaz, Deisy C. Paez
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The present paper shows a way to identify crack tip location (CTL) using edge detection algorithms. Arbitrary crack tip coordinates were fed to Linear Elastic Facture mechanics (LEFM) analytical models to simulate displacement fields. Then, first degree edge detection algorithms were applied to the obtained displacement fields to identify crack edges ...
Jorge G. Díaz, Deisy C. Paez
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Stress and Displacement Fields at a Transient Crack Tip Propagating in Functionally Graded Materials
Key Engineering Materials, 2007Stress and displacement fields for a transient crack tip propagating along gradient in functionally graded materials (FGMs) with an exponential variation of shear modulus and density under a constant Poisson's ratio are developed. The equations of transient motion in nonhomogeneous materials are developed using displacement potentials and the solution ...
Kwang Ho Lee, Gap Su Ban
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Measurement of Crack Tip Displacement Field in Desiccating Paste
Desiccation cracking is a phenomenon in which cracks are caused by shrinkage of drying paste material. In the present study, digital image correlation, DIC, is applied to measure the displacement field at the crack tip in a drying paste. In order to obtain magnified images around the crack tip, the control method for crack nucleation position and crackTatsuya Arai, Kenichi Sakaue
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Crack-Tip Displacement Fields and JR-Curves of Four Aluminum Alloys
1992The JR-curves associated with small crack growth in 0.8-mm-thick 2024-T3, 2024-0, 5052-H32 aluminum and 2091-T3 aluminum-lithium cruciform specimens and 2024-T3 and 2024-0 aluminum single-edge-notched (SEN) specimens are presented. The cruciform specimens were loaded uniaxially and biaxially.
MS Dadkhah, AS Kobayashi, WL Morris
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Acta Mechanica Sinica, 1991
This paper presents the application of Moire interferometry in measuring the displacement andstrain field at notch-tip and crack-tip before and after crack propagation.The experiment is carried out using athree point bending beam with a notch.The N_x and N_y fringe patterns representing displace...
Han Jinhu, Mao Tianxiang
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This paper presents the application of Moire interferometry in measuring the displacement andstrain field at notch-tip and crack-tip before and after crack propagation.The experiment is carried out using athree point bending beam with a notch.The N_x and N_y fringe patterns representing displace...
Han Jinhu, Mao Tianxiang
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