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RCurve Determination Using a CrackLineWedgeLoaded
Measuring K RCurves for Thin Sheets E J Ripling
4 other sections not shown
aluminum alloy American Society Armco curve Armco Steel Corp ASTM calculated CCT specimen center-cracked CLWL CLWL-4T concept constant load crack driving force crack extension crack growth resistance crack opening stretch crack propagation crack resistance curves crack tip DIRECTION WR displacement control double compliance driving force curves ductile effective crack length elastic equation Evaluation by R-Curve experimental failure prediction Fracture Extension Resistance Fracture Mechanics fracture mode fracture resistance Fracture Testing Fracture Toughness Evaluation Fracture Toughness Testing Heyer and McCabe initial crack length Kc-value ksi/in linear elastic measurement Naval Research Laboratory plane strain plane stress fracture plastic deformation plastic zone correction procedure R-Curve Methods R-curves determined rising load shear shown in Fig slit tip Society for Testing specimen geometry specimen type specimen width steels stress intensity factor structural Testing and Materials thickness contraction value of Kc wedge loading yield strength