SYMPOSIA PAPER Published: 01 January 1983
STP36209S

Novel Test Specimens for Workability Testing

Source

Previous work showed that fracture in compression tests initiates at the equatorial surface over a range of axial compression/circumferential tension strain combinations. A refined test technique has been developed that extends the range of strains over which experimental measurements of fracture can be made. In addition to upset compression tests on cylindrical specimens, flanged and tapered compression tests have been performed that give strain states in the small strain region of the fracture locus. Partial extrusion tests were also performed to provide strains in the first quadrant of the strain coordinate plane. Materials tested include 2024 aluminum alloy, 1045 medium carbon steel, and a sintered powder steel. Most tests were carried out at room temperature, but the aluminum alloy was also tested at hot working temperatures. Results are compared with the theoretical criteria of fracture and fracture locus predictions.

Author Information

Erman, E
University of Pittsburgh, Pittsburgh, Pa.
Kuhn, HA
University of Pittsburgh, Pittsburgh, Pa.
Fitzsimons, G
University of Pittsburgh, Pittsburgh, Pa.
Price: $25.00
Contact Sales
Related
Reprints and Permissions
Reprints and copyright permissions can be requested through the
Copyright Clearance Center
Details
Developed by Committee: E28
Pages: 279–290
DOI: 10.1520/STP36209S
ISBN-EB: 978-0-8031-4874-1
ISBN-13: 978-0-8031-0248-4