A Finite Element Analysis of Stress Fields in Vickers Indentation on Brittle Materials
A three dimensional finite element model for Vickers indentations on brittle materials is presented in order to analyze the stress distribution. The objective of this paper is to study when and where cracks are most likely to initiate and propagate in the indentation cycle based on the analyzed stresses. Therefore the time-dependent stresses around and below the surface of the contact area during the indentation cycle, especially at the end of loading and at the beginning of unloading phase are investigated in detail. The analytical results are shown to be in good agreement and verified with the experimental results.
Dongming Guo, Tsunemoto Kuriyagawa, Jun Wang and Jun’ichi Tamaki
B. Zhang and M. Yoshioka, "A Finite Element Analysis of Stress Fields in Vickers Indentation on Brittle Materials", Key Engineering Materials, Vol. 329, pp. 403-408, 2007