工程科学学报2016，Vol.38Issue(6)：841-846,6.DOI:10.13374/j.issn2095-9389.2016.06.014
基于相场法的砂浆裂纹相互作用失效分析
Analysis on the fracture failure in crack interaction of mortar using the phase-field method
摘要
Abstract
This article introduces a new mortar fracture analysis method based on the phase-field method, which is used to analyze the fracture failure in crack interaction of mortar. The non-conserved Allen-Cahn equation was adopted as the system governing equa-tion to study the crack development and interaction in mortar. Both the linear elasticity and phase-field equations were solved in a uni-fied finite element frame work, which was implemented in the commercial software COMSOL. Direct tension test and three-point ben-ding test were performed for validation. It is discovered that the critical load of crack interaction by the phase-field method agrees very well with the experimental results. Research results show that Mode II specimen tends to have a longer crack path.关键词
砂浆/断裂力学/失效分析/相场法Key words
mortar/fracture mechanics/failure analysis/phase-field method分类
建筑与水利引用本文复制引用
侯越,葛智,周健,孙凤艳,孙文娟..基于相场法的砂浆裂纹相互作用失效分析[J].工程科学学报,2016,38(6):841-846,6.基金项目
国家自然科学基金资助项目(51308042,41372320) （51308042,41372320）
山东省自然科学基金资助项目(ZR2015EQ009) （ZR2015EQ009）
