An engineering analysis of ductile fractures

✍ Scribed by H. W. Liu; William J. Gavigan; J. S. Ke

• Book ID: 104654403
• Publisher: Springer Netherlands
• Year: 1970
• Tongue: English
• Weight: 799 KB
• Volume: 6
• Category: Article
• ISSN: 1573-2673
• DOI: 10.1007/bf00183658

✦ Synopsis

A critical strain at a small distance from a crack tip is proposed as a ductile fracture criterion. Surface strain in double edge cracked specimen made of 2024-0 aluminum alloy was measured using the moir6 method. The strain along the crack line and near a crack tip is proportional to the cracked-section-elongation, the latter is used as a measurable quantity to characterize ductile fractures. The effect of specimen size on fracture strength and energy absorption by the specimen were analyzed. The proposed ductile fracture analysis agrees qualitatively with fracture tests on fully annealed 4340 steel and 2024-T351 aluminum.