Experimental aspects of an investigation of macroscopic ductile failure criteria

Technical Report · Sun Mar 01 00:00:00 EST 1981

DOI:https://doi.org/10.2172/6872503· OSTI ID:6872503

Soo Hoo, M. S.; Benzley, S. E.; Priddy, T. G.

Experimental results for the ductile failure of 7075-T651 aluminum are presented. Four separate shapes were tested to investigate the importance that macroscopic effective shear stress, hydrostatic stress, and plastic strain play in describing ductile failure of materials. The specimens used were: thin wall torsion tubes to create a state of pure shear, uniform hollow tubes to create a state of uniaxial stress; hour-glass shaped hollow tubes to create a state of biaxial stress; and notched round bars to create a state of triaxial stress. Two proposed ductile failure criteria are discussed in conjunction with the experimental results presented.

• Research Organization: Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
• DOE Contract Number: AC04-76DP00789
• OSTI ID: 6872503
• Report Number(s): SAND-80-1917
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALUMINIUM
DUCTILITY
FAILURES
PERFORMANCE TESTING
STRESSES
ELEMENTS
MECHANICAL PROPERTIES
METALS
TENSILE PROPERTIES
TESTING
360103* - Metals & Alloys- Mechanical Properties