FEM Formulation and Analysis of Elasto-Plastic Stress Singularity


Article Preview

The present study shows a new idea for investigating characteristics of stress singularity field around a vertex associated with elasto-plastic properties of materials. FEM formulation for elasto-plastic stress singularity analysis is expressed to investigate an eigenvalue and the intensity of singularity.The elasto-plastic stress singularity in a flip chip joint was investigated using the FEM formulation. After that, the possibility of delamination on the flip chip joint was discussed.



Key Engineering Materials (Volumes 324-325)

Edited by:

M.H. Aliabadi, Qingfen Li, Li Li and F.-G. Buchholz




W. Attaporn and H. Koguchi, "FEM Formulation and Analysis of Elasto-Plastic Stress Singularity", Key Engineering Materials, Vols. 324-325, pp. 915-918, 2006

Online since:

November 2006




[1] S. S. Pageau, P. F. Joseph and S. B. Biggers: Int. J. Solids Structures Vol. 32-5 (1995), p.571.

[2] Y. Yamada and H. Okumura: In Hybrid and Mixed Finite Method (1983), p.325.

[3] H. Koguchi, S. Yamashita and M. Fujimagari, in: Proceeding of InterPACK'01, ASME (2001).