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首页> 外文期刊>American journal of applied sciences >Mesoscopic Damage Based Model for Plane Concrete under Static and Dynamic Loadings | Science Publications
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Mesoscopic Damage Based Model for Plane Concrete under Static and Dynamic Loadings | Science Publications

机译：静态和动态载荷下基于细观损伤的平面混凝土模型科学出版物

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摘要

> The constitutive equations for the mechanical behavior of concrete capable of seeing damage effects or crack growth procedure under loading/unloading/reloading was developed upon microplane framework. The proposed damage formulation has been built on the basis of five fundamental types of stress/strain combinations, which essentially may occur on any of microplanes. Model verification under different loading/unloading/reloading stress/strain paths has been examined. The proposed model is capable of presenting pre-failure history of stress/strain progress on different predefined sampling planes through material. Many of mechanical behavior aspects happen during plasticity such as induced anisotropy, rotation of principal stress/strain axes, localization of stress/strain and even failure mechanism are predicted upon a simple rational way and can be presented.
机译： >在微平面框架上建立了能够在加载/卸载/再加载下看到破坏效应或裂纹扩展过程的混凝土力学性能的本构方程。所提出的损伤公式是基于五种基本类型的应力/应变组合建立的，它们基本上可能发生在任何微平面上。检验了在不同加载/卸载/再加载应力/应变路径下的模型验证。所提出的模型能够通过材料呈现不同预定义采样平面上的应力/应变进度的失效前历史。通过简单的合理方法可以预测塑性过程中发生的力学行为，例如各向异性，主应力/应变轴的旋转，应力/应变的位置，甚至破坏机理等。

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