| 基于刚体─弹簧模型的混凝土微裂纹行为模拟 |
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| 引用本文： | 王宝庭,宋玉普,张燕坤.基于刚体─弹簧模型的混凝土微裂纹行为模拟[J].工程力学,1999(2). |
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| 作者姓名： | 王宝庭 宋玉普 张燕坤 |
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| 作者单位： | 大连理工大学土木系!大连，116024，大连理工大学土木系!大连，116024，大连理工大学土木系!大连，116024 |
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| 摘 要： | 本文在细观上将混凝土看成是由粗骨料颗粒与硬化水泥浆体组成的两相非均质复合材料，以随机颗粒模型代表混凝土的细观结构，研究了一种对随机颗粒模型结构进行全自动网格剖分的方法，采用适宜处理微裂纹行为的刚体一弹簧模型（RigidBodySpringModel），探讨了预先存在的微裂纹对混凝土性能的影响，建立起混凝土的细观结构与宏观性能之间的关系，同时也对混凝土在拉伸荷载下的裂纹传播行为进行了研究。
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| 关 键 词： | 细观 随机颗粒模型 RBSM 裂纹密度 |
SIMULATION OF CONCRETE MICROCRAK BEHAVIOR ON RBSM |
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| WANG Bao-ting, SONG Yu-pn, ZHANG Yan-Kun.SIMULATION OF CONCRETE MICROCRAK BEHAVIOR ON RBSM[J].Engineering Mechanics,1999(2). |
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| Authors: | WANG Bao-ting SONG Yu-pn ZHANG Yan-Kun |
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| Abstract: | From micro level, concrete is idealized as a two-phase composite made of mortar matrix and aggregate inclusions, and random particle model is used to symbolize the meso structure of the concrete. The method of automatic mesh division for the random particle model is studied. A rigid body spring model (RBSM) which is adapted to analyze the microcrack is used to calculate the influence of pre-existed microcracks on the behavior of concrete material, and the behavior of concrete microcracks propagation is also studied in this paper. |
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| Keywords: | micro level random particle model RBSM crack intensity |
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