摘要
基于2个基本假设,建立了I-II复合型V型切口脆性断裂的最大周向应力准则。给出了I型V型切口的临界应力强度因子与I型裂纹的临界应力强度因子之间的关系,并用有机玻璃板材加工成2种I-II复合型V型切口试样,进行了实验验证。实验结果表明,所提出的I-II复合型V型切口脆性断裂的最大周向应力准则与实验结果基本吻合。
Based on two main hypotheses, the maximum circumferential stress criterion of brittle fracture is proposed for the V-notch problem with the combined model of I and II. The relationship between the critical stress intensity factor of the V-notch and such factor of the crack is given for the model I. The experiments were carried out with the combined model of I and II using two kinds of V-notched specimens made of plexiglass to verify this brittle fracture criterion. It is indicated that the presented maximum circumferential stress criterion coincides with the experimental results.
出处
《合肥工业大学学报（自然科学版）》
CAS
CSCD
2004年第9期1043-1046,共4页
Journal of Hefei University of Technology：Natural Science
基金
安徽省教育厅自然科学重点科研计划资助项目(2003kj045zd)
关键词
V型切口
脆性断裂
最大周向应力准则
V-notch
brittle fracture
maximum circumferential stress criterion
