Results 161 to 170 of about 2,467 (201)
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Elastic-plastic fracture toughness of PC/ABS blend based on CTOD and J-integral methods
Polymer, 1996Abstract The elastic-plastic fracture toughness of a PC/ABS blend has been investigated simultaneously by the conventional J-integral and the crack tip opening displacement (CTOD) methods for specimen thickness varying from 4 to 15 mm. The critical J (Jc) and the critical CTOD (δc) are based on crack initiation.
Ming-Luen Lu +2 more
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1990
A difficulty associated with predicting structural integrity is that the surface cracks found in structural components are three-dimensional whereas the crack-tip opening displacement (CTOD) and J-integral analytical techniques were derived from two-dimensional theory.
WG Reuter, WR Lloyd
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A difficulty associated with predicting structural integrity is that the surface cracks found in structural components are three-dimensional whereas the crack-tip opening displacement (CTOD) and J-integral analytical techniques were derived from two-dimensional theory.
WG Reuter, WR Lloyd
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Volume 7: Structures and Dynamics, Parts A and B, 2012
Very often in the open literature the crack propagation simulation is based on the linear elastic fracture mechanics. This article describes a novel application of the cyclic crack tip opening displacement (ΔCTOD) method for evaluation of the cyclic nonlinear energy release rate under large plasticity and cyclic loading conditions. In order to consider
Piotr Bednarz +2 more
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Very often in the open literature the crack propagation simulation is based on the linear elastic fracture mechanics. This article describes a novel application of the cyclic crack tip opening displacement (ΔCTOD) method for evaluation of the cyclic nonlinear energy release rate under large plasticity and cyclic loading conditions. In order to consider
Piotr Bednarz +2 more
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Ocean Engineering, 2014
The extreme loading conditions, i.e. the large plastic bending combined with high internal pressure, and the potential cracks or flaws in the welds pose tremendous challenges to the structural integrity for offshore pipelines. In this paper, the fracture response of offshore pipeline with semi-elliptical surface crack under large plastic deformation is
Y.M. Zhang +3 more
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The extreme loading conditions, i.e. the large plastic bending combined with high internal pressure, and the potential cracks or flaws in the welds pose tremendous challenges to the structural integrity for offshore pipelines. In this paper, the fracture response of offshore pipeline with semi-elliptical surface crack under large plastic deformation is
Y.M. Zhang +3 more
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Acta Mechanica, 2011
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Hoh, H. J., Xiao, Z. M., Luo, J.
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zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Hoh, H. J., Xiao, Z. M., Luo, J.
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Specimen Thickness Effects for Elastic-Plastic CTOD Toughness of an A36 Steel
1988This paper describes the results of an experimental and analytical study of the effect of specimen size on the fracture toughness behavior of A36 steel, primarily in the lower-transition region. This region is beyond the limits of plane strain as defined by ASTM Method E 399, but in the region where failure occurs prior to any macroscopic fibrous ...
GW Wellman, WA Sorem, RH Dodds, ST Rolfe
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Engineering Fracture Mechanics, 1987
Abstract A composite crack profile (CCP) model has been applied for the evaluation of CTOD in the elastic-plastic crack growth situations prevailing in a structural steel. The results have been compared with the ones obtained by conventional method (using plastic hinge model such as Wells etc.) The CTOD-Resistance Curves (δR-curves) have also been ...
C.R. Pratap, R.K. Pandey
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Abstract A composite crack profile (CCP) model has been applied for the evaluation of CTOD in the elastic-plastic crack growth situations prevailing in a structural steel. The results have been compared with the ones obtained by conventional method (using plastic hinge model such as Wells etc.) The CTOD-Resistance Curves (δR-curves) have also been ...
C.R. Pratap, R.K. Pandey
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Journal of Pressure Vessel Technology, 2020
Abstract Engineering solutions for crack-tip opening displacement (CTOD) and J-integral estimations for pipelines with a surface crack are proposed based on parametric finite element (FE) analyses for various geometries, material properties, and internal pressure conditions.
Youn-Young Jang +4 more
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Abstract Engineering solutions for crack-tip opening displacement (CTOD) and J-integral estimations for pipelines with a surface crack are proposed based on parametric finite element (FE) analyses for various geometries, material properties, and internal pressure conditions.
Youn-Young Jang +4 more
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Engineering Fracture Mechanics, 2016
Abstract The plastic strain accumulation at the crack tips are used as controlling parameter to estimate cyclic CTOD for low-cycle failure analysis of the central-through cracked plate. The second order polynomial for the normalized CTOD defined as a function of the accumulative plastic strain, the ratio of mean stress to the yield stress, and the ...
Junlin Deng +3 more
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Abstract The plastic strain accumulation at the crack tips are used as controlling parameter to estimate cyclic CTOD for low-cycle failure analysis of the central-through cracked plate. The second order polynomial for the normalized CTOD defined as a function of the accumulative plastic strain, the ratio of mean stress to the yield stress, and the ...
Junlin Deng +3 more
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A Comparison of J and CTOD as Elastic-Plastic Fracture Characterizing Parameters
1995This paper presents results of experimental and numerical analysis studies to investigate the relationship between J and CTOD and assess whether they are, indeed, both suitable elastic-plastic fracture characterizing parameters. Detailed elastic-plastic finite element analyses were undertaken for SE(B) specimens with a/W ratios of 0.1, 0.2, 0.3 and 0.5.
JR Gordon, BK Neale, Y-Y Wang
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