摘要
针对脆性材料破坏的一种数值模拟方法 ,材料破坏以单元高斯点的损伤作为判别依据 .当单元局部损伤后 ,由于损伤高斯点的承载能力全部丧失 ,需将高斯点对单元刚度矩阵的贡献从单元刚度矩阵中除去 ,此高斯点上的残余应力通过单元节点作为荷载加在结构上 .已有算例表明 ,此方法可以作为脆性材料破坏分析的一种有效方法 .
As a kind of numerical simuilation methed for brittle material breakage,material breakage takes the element Gauss node's damage as distinguishing rule. The contribution of Gauss node to element stiffness should be removed. So the residual stress of Gauss node can be brought to the structure as the load by element node. Some examples show that this method can be regarded as an effective method of analyzing brittle material breakage.
出处
《北京建筑工程学院学报》
2004年第2期80-82,共3页
Journal of Beijing Institute of Civil Engineering and Architecture
关键词
脆性材料
数值计算
损伤
brittle material
numerical calculation
damage
