Efficient pseudo-inverse approach for damage prediction in cold forging process simulation. (November 2014)

• Record Type: Journal Article
• Authors: Halouani, Ali; Li, Yuming; Abbès, Boussad; Guo, Ying-Qiao
• Editors: Saanouni, K
• Is Part Of: International journal of damage mechanics. Volume 23:Number 8(2014:Nov.)
• Page Start: 1168
• Page End: 1188
• Publication Date: 2014-11
• Subjects: Pseudo inverse approach -- strain damage model -- direct algorithm of plasticity -- cold forging process; Fracture mechanics -- Periodicals; 620.1126
• DOI: 10.1177/1056789514535230
• Languages: English
• ISSNs: 1056-7895

Abstract

This article presents an efficient pseudo-inverse approach for the damage prediction in cold forging process simulation. Pseudo-inverse approach combines the advantages of the fast inverse approach and accurate incremental approaches. Some intermediate configurations are created geometrically and corrected mechanically to well describe the deformation path. The formulation of an axi-symmetrical element based on pseudo-inverse approach is presented. A strain-based damage model is introduced in the flow theory of plasticity. A direct scalar integration algorithm of plasticity-damage is developed, leading to a fast and robust algorithm for large strain increments. The cold forging processes of two axi-symmetrical parts are simulated to validate pseudo-inverse approach by the incremental approach ABAQUS/Explicit. Pseudo-inverse approach gives very good results, but uses much less CPU time.