A Finite Element Algorithm for Microvoid Nucleation, Growth and Coalescence
- 1 April 1993
- journal article
- research article
- Published by SAGE Publications in International Journal of Damage Mechanics
- Vol. 2 (2) , 118-136
- https://doi.org/10.1177/105678959300200202
Abstract
A radial return algorithm is developed for large strain elasto-plastic struc tures in order to easily compute microvoid volume fraction rates. The basic feature subroutines are described in detail and forwards four typical problems are analysed: Q4 element tensile test, Q4 element compression test, notched cylinder tensile test and pipe bulging. The influence of microvoids volume fraction is clearly enhanced, mainly in regard to hydrostatic stress.Keywords
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