摘要
基于EWF方法,通过将两种材料拉伸试样比断裂总功的计算结果与拉伸测试所得结果进行对比,对目前存在的两种(三区和二区模型)用于描述断裂韧带塑性变形的理论模型进行比较。最终得出三区模型具有较高的精度更为合理的结论。
The thesis based on Essential Work of Fracture approach takes an insight look into two different models（two-zone and three-zone models）for describe the deformation and fracture behavior of the tearing ligament.A comparison of these two models was made based on the results from an early experiment.Finally conclusion was three-zone model has a higher accuracy than two-zone model.
出处
《机械设计与制造》
北大核心
2011年第1期104-106,共3页
Machinery Design & Manufacture
关键词
撕裂特性
基本断裂功(EWF)
模式III断裂
Two-leg trousers tear test
Essential work of fracture（EWF）theory
Out-of-plane（Mode III）fracture
