Deformation and strain analysis for high extrusion ratios and elevated temperatures
Conference
·
OSTI ID:7140846
Axisymmetric extrusion of aluminum at 450/sup 0/C is being studied using the visioplastic method. A full field strain distribution is obtained through a conical die which has an extrusion ratio of 13 to 1. Strains are determined from changes in the shape of flow lines that were originally ink stamped on an axial plane of the billet. Numerical methods are described for approximation, differentiation, and integration of the material flow functions and strain rates. Good agreement is found between calculated and measured flow patterns.
- Research Organization:
- Georgia Inst. of Tech., Atlanta (USA). School of Engineering Science and Mechanics; Du Pont de Nemours (E.I.) and Co., Aiken, SC (USA). Savannah River Lab.
- DOE Contract Number:
- AC09-76SR00001
- OSTI ID:
- 7140846
- Report Number(s):
- DP-MS-84-13; CONF-8406101-2; ON: DE84010152
- Country of Publication:
- United States
- Language:
- English
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