在剪切应力作用下的GCr15单胞三维模型与二维模型的应力与应变对比分析

Mechanical Behavior of GCr15 By 3D and 2D Unit Cells Applied Shear Force

对GCr15轴承钢滚子做扫描电镜观测,可以观测到该轴承滚子材料中基体以及镶嵌在基体之中无序分布的碳化物颗粒。根据电镜图片建立细观结构模型,分别建立ABAQUS单胞三维模型和二维平面模型。在周期性边界条件下模拟并对比分析在远场处剪切力的影响下,两种模型中碳化物颗粒和基体结合处附近的应变和应力。

The photo of GCr15 taken on a scanning electron microscope shows the meso-structure,matrix and carbides randomly distributed in the matrix. Model ABAQUS 3D and 2D CAE models,based on the photo taken by the SEM. Apply periodical boundary conditions and shear force on both 3D and 2D models,and analyze the mechanical behavior near the boundary of the carbide and the matrix.