REDUCING MESH BIAS ON FRACTURE WITHIN RIGID-BODY-SPRING NETWORKS
REDUCING MESH BIAS ON FRACTURE WITHIN RIGID-BODY-SPRING NETWORKS
复制标题
减少刚体弹簧网络中断裂的网格偏差
DOI：
10.2208/jscej.2001.682_15
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发表时间：
2001
期刊：
影响因子：
--
通讯作者：
M. Kunieda
中科院分区：
文献类型：
--
作者：
J. Thomure;J. Bolander;M. Kunieda
随机晶格网络通常表现出虚假的异质性，这可能会掩盖材料行为的重要方面，特别是在对均质材料的断裂进行建模时。这个问题通过在刚体弹簧网络方法中创新地使用裂纹带模型来解决。对混凝土致密拉伸试样进行分析，以证明模型在网络组件的尺寸和几何形状方面的客观性。在 I 型裂纹过程中，断裂能量消耗沿裂纹路径是均匀的，与网格划分策略无关。
Random lattice networks generally exhibit spurious heterogeneity that can overshadow important aspects of material behavior, particularly when modeling fracture in homogeneous materials. This issue is resolved through the innovative use of a crack band model for fracture within the Rigid-Body-Spring Network approach. Analyses of concrete compact tension specimens are conducted to demonstrate model objectivity with respect to size and geometry of the network components. During mode I cracking, fracture energy consumption is uniform along the crack path, independent of the meshing strategy.