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Implementation of a plastic-damage coupled model for distinct lattice model

机译：离散格模型塑性损伤耦合模型的实现

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In this study a plastic-damage coupled model is implemented in the distinct lattice spring modelrn(DLSM). A plastic-damage coupled model is used as a constitutive model to take advantages of both damagernand plastic models to properly simulate cyclic behaviour of brittle like materials under uniaxial tension loading.rnFor this purpose, a simple framework for the combination of stress-based plasticity and strain based scalarrndamage is presented by using two variables named state variable and damage-plastic coupling coefficient.rnThen two variables are used to present different parts of force -deformation curve of cyclic response under uniaxialrntension loading. For the study, distinct lattice spring model (DLSM) is applied to implement the plasticdamagerncoupled model into it. With comparing simulation result and experimental result, it is found that thernbrittle behaviour of material can be well predicted by the DLSM through the implemented plastic-damagerncoupled model.
机译：在这项研究中，在不同的晶格弹簧模型（DLSM）中实现了塑性损伤耦合模型。塑性损伤耦合模型被用作本构模型，以利用损伤模型和塑性模型两者的优势来适当地模拟脆性材料在单轴拉伸载荷下的循环行为。为此，一个简单的框架结合了基于应力的可塑性和可塑性。利用状态变量和损伤塑性耦合系数这两个变量来表示基于应变的标量损伤。然后，使用这两个变量来表示单轴拉伸载荷下循环响应力-变形曲线的不同部分。为了进行研究，应用了独特的晶格弹簧模型（DLSM）来实现塑性-弹力耦合模型。通过比较仿真结果和实验结果，发现通过实现的塑性-弹力耦合模型，DLSM可以很好地预测材料的脆性行为。

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