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材料微观力学模型可应用于研究各种不同材料，如结构钢，中子辐照脆化焊接材料，球墨铸铁和铝合金等的韧性断裂。因为这些模型是依据韧性断裂微观机制的物理描述而建立起来的，所以其应用不受特定负荷条件和试样（或零部件）几何形状的限制。与Ｊ积分的概念不同，微观力学模型可以用来估算如铁素体和奥氏体这样在融合线上性能变化梯度很大的材料界面上的裂纹萌生和传播行为。本文提出了一种结合试验数据和计算模拟确定微观力学参数的方法，并演示了应用微观力学模型预测实际构件整体性能和断裂行为的可能性。
The micromechanics model can be used to study the ductile fracture of various materials, such as structural steel, neutron irradiated embrittlement welding material, ductile iron and aluminum alloy. Because these models are based on the physical description of the microscopic mechanism of ductile fracture, their application is not subject to specific load conditions and the geometry of the specimen (or part). Unlike the J-integral concept, the micromechanical model can be used to estimate the initiation and propagation of cracks on the interface of materials with gradient gradients in the fusion line, such as ferrite and austenite. In this paper, a method of determining microscopic mechanical parameters by combining experimental data and computational simulation is presented. The possibility of using microcosmic mechanical models to predict the overall performance and fracture behavior of practical components is also demonstrated.