Progress in Flaw Growth and Fracture Toughness Testing: Proceedings

aluminum alloy American Society analysis applied approximately B₁ b₂ behavior bending compact tension specimen constant crack closure crack depth crack extension crack growth rate crack length crack tip curve cyclic da/dN deformation displacement ductile effect elastic Engineering equation equivalent energy procedure experimental failure stress fatigue crack propagation Flaw Growth Fracture Mechanics fracture properties Fracture Toughness Testing frequency gage geometry gross strain increased incubation initial crack J-Integral K₁ Kic values kips Kisce Kmax ksi Vin ksi√in linear elastic load cycle maximum measured metal notch number of cycles obtained overload region parameter percent pipe materials plane plane stress plane-strain plastic zone plate polycarbonate precracking predicted pressure vessel Progress in Flaw proof test R-curve residual stresses shown in Fig Society for Testing sodium chloride steel stress intensity factor structural surface flaw Table temperature tensile tensile stress Testing and Materials thickness versus weld yield strength