Prediction of Forming Limit Diagram Based on Damage Coupled Kinematic-Isotropic Hardening Model Under Nonproportional Loading  

Oleh:

Chow, C. L. ; Yang, X. J. ; Chu, E.

Jenis: Article from Bulletin/Magazine
Dalam koleksi: Journal of Engineering Materials and Technology vol. 124 no. 2 (2002), page 259-265.
Topik: LOADING; forming limit; diagram; kinematic - isotropic; loading

Ketersediaan

Perpustakaan Pusat (Semanggi) Nomor Panggil: JJ87.3 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada

Lihat Detail Induk

Isi artikel

Based on the theory of damage mechanics, an anisotropic damage coupled mixed isotropic - kinematic hardening plastic model for the prediction of forming limit diagram (FLD) is developed. The model includes the formulation of non linear anisotropic kinematic hardening. For the prediction of limit strains under non proportional loading, a damage criterion for localized necking of sheet metals subjected to complex strain history is proposed. The model is employed to predict the FLD s of AL6111 - T4 alloy. The predicted results agree well with those determined experimentally.

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