... are quite encouraging, and the method is extended here to cases in which there are no crack extension measurements available. stable crack growth common format elastic-plastic fracture normalization ASTM Special Technical Publication, Vol. 5, No. 10 Paper ID JAI101546 Available online...

.... KEYWORDS: J-integral, elastic-plastic fracture, polytetra uorethylene PTFE , pop-in behavior, geometry effects, side grooves, crack growth corrections Introduction Prior work 2 4 evaluated the fracture toughness of PTFE and aluminum lled PTFE over a range of temperatures and loading rates using compact...

.... Beyond maximum load, the δ 5 -resistance curves for the C(T) specimens began to deviate rapidly; whereas, the δ 5 -resistance curves for the M(T) specimens only deviated slightly. CTOA CTOD cracks elastic-plastic fracture δ 5 resistance curve Mark A. James, 1James C. Newman, Jr...

... of material available for testing, the highly localized nature of the banding, and the inability to predict where it will occur. Shallow crack cleavage ductile-to-brittle transition ferritic steel elastic-plastic fracture fracture mechanics master curve carbide banding biaxial loading stereo...

... are also presented. elastic-plastic fracture computational methods crack extension Mark M. Rashid1 and Ritwick Roy2 A NEW THEORETICAL FRAMEWORK FOR INELASTIC FRACTURE PROCESSES REFERENCE: Rashid, M. M. and Roy, R., "A New Theoretical Framework for Inelastic Fracture Processes," Fatigue...

... of the aluminum alloys and the steels on both crack growth direction and crack path at the macroscopic scale is discussed. crack growth direction crack path elastic-plastic fracture static and fatigue fracture (materials) modeling testing Valery N. Shlyannikov 1 Mixed-Mode Static and Fatigue Crack...

... dropping from the measured and computed initial high values of 35 and 57°, respectively. elastic-plastic fracture stable crack growth T ϵ * integral J integral CTOA Yoshika Omori, l Hiroshi Okada, 2 Leong Ma, 1 Satya N. Atluri, 2 and Albert S. Kobayashi I Integral Under Plane Stress...

... systems, however, can still be better than overmatched systems hen the inherent toughness of the overmatching weld metal consumable is poor. mismatching mismatched welds undermatched welds elastic-plastic fracture J-R curve cracking resistance weld joint geometry weldment strength Robert...

... , and compared with conventional R -curves of standard compact-tension (C(T)) and center-cracked-tension (M(T)) specimens. The effect of the load biaxiality is discussed with regard to previous experiments with Mode I loaded cruciform specimens. elastic-plastic fracture stable crack growth crack...

... parameters J and A 2 — J represents the level of loading and A 2 quantifies the level of constraint. Constraint related issues such as size effect, transferability, and biaxial stress effect are investigated. The predicted results have the same trend as seen experimentally. elastic-plastic fracture...

... of constraint in this type of fracture. The results from both types of shear test show that the type of crack, mode of loading, and the load history all have an influence on the role of constraint and therefore its fracture properties of PMMA. mixed mode fracture elastic-plastic fracture geometry PMMA...

... decreases. fracture toughness constraint effects elastic-plastic fracture upper shelf fracture J integral ductile fracture rotation correction T stress Q J Ic tearing modulus James A. Joyce~ and Richard E. Linld EFFECTS OF CONSTRAINT ON UPPER SHELF FRACTURE TOUGHNESS REFERENCE: Joyce...

..., monotonic J-R curve tests, and cyclic elastic and elastic-plastic fatigue crack growth rate tests. The cyclic elastic-plastic fracture behavior of the stainless steel was of primary concern and was evaluated using a cyclic J -integral approach. It was found that the cast stainless steel was very...

... geometries and for a wide range of material strain hardening properties. An indicator of the robustness of the J-Q fields is introduced; Q as a field parameter and as a pointwise measure of stress level is discussed. constraint stress triaxiality elastic-plastic fracture fracture toughness...

... but a significant constraint loss in the shallow-crack specimens, which is consistent with observed behavior. The posttest analysis has been used to construct a J c ( Q ) locus of toughness data. elastic-plastic fracture shallow-crack toughness constraint CTOD testing J integral Q -stress parameter...

... in transition region fracture is the threshold toughness of the material, that is, the absolute lower bound. ductile-brittle transition elastic-plastic fracture constraint scatter size effects on toughness cleavage Ted L. Anderson, 1 David Stienstra, 2 and Robert H. Dodds, Jr. 3 A Theoretical...

... International cooperative interlaboratory test programs on elastic-plastic fracture toughness in the transition region have been conducted under the 129th Committee, Japan Society for the Promotion of Science (JSPS), and the Materials Properties Council (MPC). The objective of the tests...

... values with 3% fracture probability coincide with the K Jci value in the lower temperature region even in higher strain rate tests. fracture toughness cleavage fracture elastic-plastic fracture ductile-brittle transition strain rate effect J integral Tadao Iwadate, 1Mikio Kusuhashi, 1...

... elastic-plastic fracture energy dissipation rate Cedric E. Turner I R-Curve, Energy Dissipation Rate, and Crack Opening Angle Models for Large Amounts of Ductile Crack Growth in Bending REFERENCE: Turner, C. E., "R-Curve, Energy Dissipation Rate, and Crack Opening Angle Models for Large Amounts...

..., qualitative approximation of experimental behavior. Mode II fracture elastic-plastic fracture finite-element analysis damage zone model stable crack growth Jennifer Cordes I and Rahmi Yazici 1 Elastic-Plastic Mode II Fracture in an Aluminum Beam REFERENCE: Cordes, J. and Yazici, R., "Elastic...