Effects of Some Modeling Parameters of Finite Element Models of Binder Forming  

Oleh:

Chen, Kuo-Kuang ; Sa, Chung-Yeh

Jenis: Article from Bulletin/Magazine
Dalam koleksi: Journal of Engineering Materials and Technology vol. 123 no. 4 (2001), page 447-455.
Topik: finite element; modeling; parameters; finite element; binder forming

Ketersediaan

Perpustakaan Pusat (Semanggi) Nomor Panggil: JJ87.2 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada

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Isi artikel

This paper studies the effects of some modeling parameters on the accuracy of finite element simulation in sheet - metal forming. A simple stepdie, which simulates binder forming, is used. In this two - dimensional case, a flat blank is bent into an S - shape, which has an exact solution. Four modeling parameters are studied. They are : die close speed, die gap, mass damping, and width of blank. One significant finding of this study reveals that in calculations using explicit finite elements, the simulation speed should be selected with care. The dynamic effects may be prevalent if the simulation speed is too fast. Numerical errors may accumulate and renders the results erroneous if it is too slow.

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