摘要
为了研究基于最大主应力准则的扩展有限元法(X-FEM)模拟含中心裂纹圆盘模型复合型加载条件下裂纹扩展行为的可靠性,利用ABAQUS的X-FEM功能对扁平巴西圆盘模型进行了数值模拟,并与实验结果进行了对比和分析。通过分析发现,最大主应力失效准则能够有效预测中心裂纹圆盘的裂纹扩展方向,并且扁平巴西圆盘模型适用于加载角θ小于临界角θc时的裂纹扩展模拟。
To study the reliability of X-FEM based on Maximum Principle Stress ( MPS) criterion simulating crack propagation of a Central Cracked Circular Disk (CCCD) model, numerical simulations are committed to a Flattened Brazilian Disk (FBD) model byusing X-FEM function of ABAQUS, and the simulation results are compared with experimental results. Based on analyzing, the MPS criterion predicts CCCD^ crack initiation angle effectively, the FBD model is suitable for crack propagation simulation under a loading angle 6 smaller than critical loading angel 6C.
出处
《四川建筑科学研究》
北大核心
2017年第6期9-12,共4页
Sichuan Building Science
基金
国家自然科学基金(11172186)