J integral
Implementation of Domain Integral Approach for J-integral Evaluation
... (5) allows J integral to be evaluated as an area integral in region A that may be performed using the same integration procedures as applied in obtaining the stiffness ma[r] ...
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J-Integral solution for elastic fracture toughness for plates with inclined cracks under biaxial loading
... the J -integral can naturally be separated into elastic and plastic components (Zhu and Joyce ...elastic J -integral corresponds to elastic frac- ture ...the J -integral is more ...
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Tubesheet Junction Fast Fracture Analysis using a Local Model Approach and J-integral Method
... the J-integral method for the evaluation of fast fracture ...the J-integral formulation and compared with the fracture toughness of the ...
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Development of J integral prediction model for surface cracks in round bars under combined loadings
... Daud, J-Integral analysis of surface cracks in round bars under tension loadings, Applied Mechanics and Materials, 52-54 2011 37-42..[r] ...
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Fatigue Crack Propagation Resistance Assessment on the Heat Affected Zone of for USI-SAC-50 Welded Joints using J Integral (G388)
... The growing use of steel in civil, mechanical and nuclear constructions is justified by the reduction of labor time and costs due to assembly simplicity. Almost all steel structures and components are manufactured using ...
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J integral evaluation of surface cracks in round bar under Mode III loadings
... with a/b<1.0. Increasing such area produced higher bar resistance to the loading applied and then reducing J- integral along the crack front. According to literature survey (Lei, 2008), there are no ...
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J-Integral Calculation by Finite Element Processing of Measured Full-Field Surface Displacements
... In the case of uncertainty or error in the material law, for instance when the measurements are made within the plastic zone, both direct and indirect techniques ex- perience issues. In the direct approach, measured ...
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Evaluation of J-Integral for Surface Cracked Plates Under Biaxial Tensile/Bending Loading Using Extended Reference Stress Method
... reference stress method to evaluate J-integral under biaxial loading was then proposed based on the above limit moment solution. The applicability of the proposed method was validated through the comparison ...
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Finite Element Analysis of J-Integral for Surface Cracks in Round Bars under Combined Mode I Loading
... of J- integral are available. After, J-integral is calculated along the crack front for various types of crack ...of J-integral are then ...
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Approximate Method for Evaluation of the J-Integral for Circumferentially Semi-Elliptical-Cracked Pipes Subjected to Combined Bending and Tension
... and 11, the presented method results agree with FE analysis well, but, SC.ENG1 cannot predict the J- integral. In another case, the applied load is assumed to be three times greater than the moment, ...
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Evaluation of J-Integral for Surface Cracked Plates under Biaxial Loading Using Extended Reference Stress Method
... In this paper, reference stress solutions for plates with semi-elliptical surface cracks were firstly reviewed, and the applicability of the solutions was examined through the comparison with finite element analysis ...
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Cyclic J-integral using the linear matching method
... Recently, the submodeling technique has often been used in the FE numerical analysis to study in detail an area of interest in a model. Herein, the area of interest is the region of high stress caused by the individual ...
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On the modified monotonic loading concept for the calculation of the cyclic j-integral
... the J-Integral is a path independent parameter[3], meaning that the value is the same, regardless of the path along which it is ...cyclic J-Integral at each contour path at each load are shown ...
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On the cyclic J-integral of a 3D semi elliptical surface crack
... and J-Integral for stationary ...and J- Integral, however, when a high level of geometrical detail is introduced, the accuracy of contour integration close to the crack tip is ...
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Cyclic J integral using linear matching method
... cyclic J-integral is expressed as the summation of elastic and fully plastic solutions for various crack geometries and loading conditions which yield the following formula for estimating the total ΔJ value ...
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J-integral analysis of a sub-clad crack under PTS transient
... The J-integrals are compared to check which model is more ...that J-integral at the deepest point for surface crack model is greater than the subsurface crack ...from J-integral at the ...
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Experimental and numerical in-plane displacement fields for determine the J-integral on a PMMA cracked specimen
... the J-integral for circular contours Γ with varying dimensions, a C++ program is written using a form of the J-integral that is expressed in terms of the displacement gradients and material ...
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Sensitivity studies on numerical J-integral assessment of specimens containing dissimilar metal welds
... For the SEN(B) specimens the parameter with the largest importance (in addition to a good global finite element mesh) was the selection of finite sliding contact implementation. This is preferable over the small sliding ...
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J-integral fracture toughness assessment of specimens containing dissimilar metal welds
... The underlying aim of MULTIMETAL is to provide recommendations for a good practice approach for the integrity assessment of DMWs as part of overall integrity analyses and leak-before-break (LBB) proce- dures. The project ...
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Crack Closure Behavior Under Elastic-plastic Cyclic Loading and its Effect on Faigue J-integral Range
... history of its application to fatigue crack growth problem, it is now well recognized that closure of fatigue crack has a large influence on crack growth rate and [r] ...
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