The Effect of Load and Crack Misalignment on Stress Intensity Factors for Bend-Type Fracture Toughness Specimens

摘要

Mode I and Model II stress intensioty factors (SIF) are presented for three-point bend speciments with misaligned loctions of loadings of loadings and cracks. Such stress intensity factors were obtained through the application of the weight function technique and the particular stress distribution applicable to a three-point eccentrically loaded beam. Mode I and Mode II stress intenstiy factors for an eccentrially loaded four-point beam having a misaligned crack were obtained by superposing the data applicable to the load and crack on a misaligned three-point loaded beam.