Modeling the mechanical behaviour of 1100-0 aluminum at different strain rates by the bodner-partom model

✍ Scribed by S. Huang; A.S. Khan

• Publisher: Elsevier Science
• Year: 1992
• Tongue: English
• Weight: 813 KB
• Volume: 8
• Category: Article
• ISSN: 0749-6419
• DOI: 10.1016/0749-6419(92)90028-b

✦ Synopsis

In this paper, the isotropic hardening version of S.R. Bodner and Y. Partom's 1975 viscoplasticity model is used to describe the mechanical behavior of 1100-0 aluminum at large finite plastic strain and within a very large strain rate range, ~ = 10-5-104 s -~ . The material constants contained in the model are determined using the experimental data obtained by using Direct Disc Impact technique (HO~G & KHAN [1991]) and MTS system. The predictions of strain rate sensitivity and work-hardening behavior of Bodner-Partom's model are then compared with the experimental data to show the capability and the deficiency of the model. Some constructive discussions are also included in this paper. *Formerly at the University of Oklahoma.