... analysis. elastic-plastic fracture mechanics constraint effects T -stress Q -factors surface cracked plate biaxial loading Xin Wang1 ASTM Special Technical Publication, Vol. 5, No. 6 Paper ID JAI101550 Available online at www.astm.org On the Quanti cation of the Constraint Effect Along...

... structural component. Concern with that area of FM later led to the development of the technology called elastic-plastic fracture mechanics (EPFM). Besides the encouragement he gave, there are several areas where he contributed technical ideas that helped with the development of the EPFM technology...

... the 0.95 secant offset initiation point specified by the E399 K Ic procedure, and the validity of the various measures of initiation toughness can be determined with respect to the different size criteria. linear elastic fracture mechanics elastic-plastic fracture mechanics stress intensity J...

... of polycrystalline metals. microstructural fracture mechanics elastic-plastic fracture mechanics linear elastic fracture mechanics MFM threshold condition LEFM threshold condition single crystal threshold Keith J. Miller ~ The Three Thresholds for Fatigue Crack Propagation REFERENCE: Miller, K. J...

..., this displacement was developed by a combination of stretch and crack growth. The stretch required to initiate crack extension was a function of the depth beneath the surface into the cross-section. elastic-plastic fracture mechanics J-integral modified J-integral J-resistance curves crack tip opening...

... correlated consistently with both resistance curve data and baseline small-scaleyieldingfatigue crack growth data. The development of the crack shape during both single-cycleductile tearing and multiple-cycle fatigue crack growth was characterized. KEYWORDS: elastic-plastic fracture mechanics, J integral...

... growth in thin plates. elastic-plastic fracture mechanics J integral J-Q theory J-T theory HRR field moire interferometry crack-tip displacements Mahyar S. Dadkhah ~ and Albert S. Kobayashi 2 Two-Parameter Crack-Tip Field Associated with Stable Crack Growth in a Thin Plate...

...” configurations, that is, shallow cracks in tension, generally have ∣β∣ >0.4, it appears that only an elastic analysis may be needed to determine reasonably accurate J 0 values for structural conditions. elastic-plastic fracture mechanics size effects finite-element analysis modified boundary layer...

... mechanisms and rates. elastic-plastic fracture mechanics J -integral resistance curves surface cracks fatigue crack growth ductile tearing range marking crack shape crack closure fracture mechanics fatigue (materials) R. Craig McClung, ~Stephen J. Hudak, Jr., 1 Martin L. Bartlett...

... primary stress were compared. Consistent results were obtained by the latter method. A detailed finite-element method (FEM) model was validated, and results from comprehensive analyses of welded and nonwelded models are presented. crack-tip opening displacement elastic-plastic fracture mechanics...

... solutions are presented for such deep cracks at the inner surface of the wall. The results show that such a crack would be stable under pressurized thermal shock load. fracture mechanics pressurized thermal shock elastic-plastic fracture mechanics pressure vessel part-through flaw fatigue...

...-applied to be calculated in terms of crack orientation, 0 and J~c. A rigorous treatment of the effect of strain gradients on applied values of J is beyond the current state of the art of elastic-plastic fracture mechanics. The idealized strain gradient shown in Fig. 4 was used to describe the strains...

... of the rising displacement test on pre-cracked specimens and the conventional slow strain rate test using smooth specimens. stress corrosion cracking (SCC) rising displacement test accelerated SCC test procedure linear elastic fracture mechanics (LEFM) elastic-plastic fracture mechanics J -integral...

... for the current test temperature (-60°C). The Irwin β c correction has been modified to account for shallow flaws and was used to estimate the shallow-flaw toughness based on the results from the deep-crack specimens. elastic-plastic fracture mechanics constraint shallow-crack fracture toughness crack...

... in the compact tension specimen was also carried out. Both simulated and actual caustic patterns agreed very well. The relations between the T * -integral and the size of caustic pattern were obtained for various optical setup. elastic-plastic fracture mechanics method of caustics finite element...

... the crack tip behavior may be eliminated using the J -integral test procedure. J -integral CMOD CTOD elastic-plastic fracture mechanics short crack finite element analysis transition fracture toughness William A. Sorem, 1 Robert H. Dodds, Jr., 2 and Stanley T. Rolfe 3 A Comparison of the J...

... considerable significance in the application of CTOD results to failure analysis or specification development where the fracture mechanism is cleavage preceded by significant crack tip plasticity. elastic-plastic fracture mechanics CTOD crack depth short crack toughness finite element constraint...

... virtual crack extension domain integral methods line-spring model linear-elastic fracture mechanics (LEFM) elastic-plastic fracture mechanics J -integral Hutchinson-Rice-Rosengren (HRR) singularities HRR dominance David M. Parks I A Surface Crack Review: Elastic and ElasticPlastic Behavior...

... and a comparison is made of all these cases. For these examples, the main effect of the choice of toughness data is on the extent of stable growth prior to maximum load. fracture mechanics crack propagation J -integral mechanical properties R -curves elastic-plastic fracture mechanics fracture-safe...

... of 7075 T-6 aluminum J-integral elastic-plastic fracture mechanics fracture test methods Robert A. Riddle, ^ Ronald D. Streit, ^ and Iain Finnie^ The Failure of Aluminum Compact Shear Specimens Under Mixed-Mode Loading REFERENCE: Riddle, R. A., Streit, R. D., and Finnie, I., "The Failure of Aluminum...