Anisotropic microcrack nucleation in brittle materials
1990 (English)In: Journal of the mechanics and physics of solids, ISSN 0022-5096, Vol. 38, no 4, 531-551 p.Article in journal (Refereed) Published
A constitutive model for anisotropic microcracking in brittle materials is developed. The model is based on a stress controlled microcrack nucleation criterion, which can vary in a random way between different microcracks. The effects of microcrack closure and a random distribution of residual stresses are included in the analysis. The resultant inelastic strains are determined using a standard homogenization technique Numerical results are presented for three simple loading cases : pure tension, biaxial tension and triaxial tension. Crack tip shielding resulting from microcrack nucleation is also analysed, and numerical results of are presented for two different microcrack nucleation criteria.
Place, publisher, year, edition, pages
1990. Vol. 38, no 4, 531-551 p.
Mechanical Engineering Materials Engineering
IdentifiersURN: urn:nbn:se:kth:diva-25495DOI: 10.1016/0022-5096(90)90013-TISI: A1990DL34700006OAI: oai:DiVA.org:kth-25495DiVA: diva2:358771
QC 201010252010-10-252010-10-252010-10-25Bibliographically approved