Prediction of Limit Strains in Sheet Metal Forming Under Complex Strain History 2000-01-0776
In this paper, a predictive method is developed to determine the forming limit strain and fracture limit strain in a stamped automotive component subjected to a complex strain history that would be experienced during an actual forming operation. The method of analysis is based on a damage mechanics model developed recently by the authors and extended to take into account the hysteretic effects of the principal strain and damage planes. The forming limit and fracture limit strains are then predicted using the modified damage model. Satisfactory predictions have been achieved for a practical case where the complex strain history is prescribed based an actual stamping operation.
Citation: Chow, C., Tai, W., and Tang, S., "Prediction of Limit Strains in Sheet Metal Forming Under Complex Strain History," SAE Technical Paper 2000-01-0776, 2000, https://doi.org/10.4271/2000-01-0776. Download Citation
Author(s):
C.L. Chow, W.H. Tai, Sing Tang
Affiliated:
University of Michigan-Dearborn, Ford Scientific Laboratory
Pages: 9
Event:
SAE 2000 World Congress
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
Sheet Metal Forming: Sing Tang 65th Anniversary Volume-SP-1536
Related Topics:
Forming
Stamping
Technical review
Historical reference
Metals
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