| 用脆性材料进行水工结构的断裂破坏模型试验 |
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| 引用本文： | 张镜剑,赵中极,黎保琨. 用脆性材料进行水工结构的断裂破坏模型试验[J]. 华北水利水电学院学报, 1984, 0(1) |
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| 作者姓名： | 张镜剑 赵中极 黎保琨 |
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| 作者单位： | 华北水利水电学院水利系，华北水利水电学院水利系，华北水利水电学院研究生部 |
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| 摘 要： | 模型材料石膏具有与混凝土相似的断裂力学特性。混凝土和石膏两者在复合型荷载下的试验数值与最大拉应力判据曲线颇为吻合,并且它们的断裂韧度是它们的抗拉强度的线性函数。二维石膏块体断裂破坏模拟试验结果与有限元计算十分相近,从而模型试验为解决水工结构断裂问题提供了途径。
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Model Test of the Fracture Failure by the Brittle Material in the Hydrostucture |
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| Abstract: | The features of fracture mechanics of plaster as the model material are similar to those of the concrete. The test data of both concrete and plaster under mixed mode loading are considerably coincided with the curve of the maximum principal stress criterion. Their fracture rough- ness values are the linear functions of their tensile strength values. The result of two-dimension simulating test of the plaster block for the fracture failure is quite close to that of the calculation from the finite element method. Consequently, the way for solving the fracture problem in the hydrostructure has been provided with a model test. |
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