... environments. In addition, the influences of loading rate, fatigue precracking stress intensity level, and fracture morphology of fatigue precracked zone on K Iscc were discussed. fractures (materials) stress corrosion crack propagation rising load K Iscc testing threshold stress intensity factor...

... of counts per event. The number of counts per event was also governed by material constants, applied stress intensity, and threshold level of detection of the acoustic emission system. acoustic properties high strength steels stress corrosion acoustic emission fractures (materials) fractography...

...) should be used to correlate creep crack growth rate behavior. The abstracts of the nine presentations made at the workshop are included. crack propagation fractures (materials) creep properties Ashok Saxena I and Virendra Kumar 2 A Report on the Workshop on High,Temperature Crack Growth...

... toughness testing of temperature- and strain-rate sensitive steels. fractures (materials) fracture tests toughness strains metals impact References Loss , F. J. , “ Structural Integrity of Water Reactor Pressure Boundary Components ,” Naval Research Laboratory Report 8006, Naval...

... the work done on the specimen. fractures (materials) steels numerical analysis tests single-edge notched tension specimen elastic compliance J -integral loading conditions finite element analysis References Shih , C. F. , de Lorenzi , H. G. , and Andrews , W. R...

... (creep) cracking. The summary concludeswith the concept of fracture control plans. KEYWORDS: fractures (materials), cracking (fracturing), modulus of elasticity, Charpy, corrosion, crack extension, fatigue, fracture mechanics, plasticity, strain, stress, toughness Nomenclature a Crack size a0 Original...

..., especially for structural applications in which underclad cracking is a potential problem. fractures (materials) toughness dynamic tests steel SA508 tension charpy impact fatigue growth pressure vessels cladding cracks rate References ASME Boiler and Pressure Vessel Codes , American...

.... composite materials impact tests dynamic properties fractures (materials) References Adams , D. F. , “ Impact Response of Polymer-Matrix Composite Materials ,” in Composite Materials: Testing and Design (Fourth Conference) , STP 617 , American Society for Testing and Materials...

.... In addition, the significance of an extending ductile tear on the structural integrity in terms of tearing modulus and acoustic emission is discussed. crack propagation structural steels fractures (materials) acoustic emission tearing fracture J contour integral stable crack growth geometry effect...

... and extension characteristics of this zone were discussed from a view point of elastic-plastic fracture toughness parameters including the relationships with existing fracture toughness parameters such as crack opening displacement and J integral. fractures (materials) plastic deformation crack propagation...

...K-H Schwalbe; D Hellmann The applicability of Johnson's equation for the potential drop to three specimen geometries is demonstrated. In addition, some remarks are made concerning the influence of crack length and specimen width on the resolution of the potential method. fractures (materials...

... the tolerances set for the dimensions of the test specimens and the critical parameters of the testing procedure. dynamic tests tear tests fractures (materials) N. A. Lazaridis, 1 T. G. Heberling, 2E. S. Harris, 2 and E. A. Lange 3 Task Group Report: Results of Interlaboratory Test Programs to Evaluate...

... macroscopic relationships are independent of fracture morphology, grain size, or plastic zone size. Theoretical relationships among the three are proposed. steels mechanical properties toughness fractures (materials) deflection Charpy test initiation energy References Datta , K. P...

... is described. fractures (materials) toughness stresses standard specimen round bar stress-intensity factor References Newman , J. C. , Jr. , “ Stress-Intensity Factors and Crack-Opening Displacements for Round Compact Specimens ,” NASA TM 80174 , National Aeronautics and Space...

... test specimens are presented. vibration tests crack propagation fractures (materials) cleavage crack crack run-arrest specimen behavior fracture properties fracture toughness ferritic steel pressure vessel steel References ASME Boiler and Pressure Vessel Code, Section XI...

... of transition temperature fracture behavior. For SA-516-70, static testing was performed on three-point bend specimens of different dimensions to determine the effect of geometrical parameters on the value of J Ic . A ligament 1-cm long is the lower limit for the determination of J Ic . fractures (materials...

...: fractures (materials), failure, cracking (fracturing), stresses, strains to simplify the original Merkle-Corten equation. Finally, Landes et al [6] suggested a simple one-step equation based on experimental results that more accurately estimated the energy rate evaluation of J than the original Merkle...

...-deposited basis, high-stressed welds produced more emissions than low-stressed welds. acoustic measurement fractures (materials) weldments nondestructive evaluation restraint steel References D'Annessa , A. T. and Owens , J. S. , “ Acoustic Emission Characterization of Heat Treat...

... and are confirmed by experimental measurements. KEY WORDS: crack propagation, fractures (materials), fatigue (materials), electrical potential method, finite element analysis Over the past 10 to 15 years, the electrical potential, or potential drop, technique [1] has gained increasingly wide acceptance in fracture...

... constant COD testing and this provides a good technique for obtaining threshold fatigue or stress corrosion conditions. crack propagation loads (forces) fractures (materials) linear elastic fracture mechanics back-face strain stress intensity factor References Clark , W. G...