The quasi - superplasticity of as - cast lead brass was studied by monodirectional elongation experiment 摘要采用單向拉伸對鑄態(tài)鉛黃銅進行了準(zhǔn)超塑性研究。
This paper firstly extends the thermal elastoplastic deformation theory of trilayered materials derived by suresh et al and abolishes the restrictive assumption to the monodirectional spread of plastic zone in the original model and the thermal elastoplastic analysis model which reflects the complete history of thermal elastoplastic deformation of the multilayered materials is built . this model can be also applied to the condition of the spread of plastic zones from both sides of plastic layers and has more applicability compared to suresh et al ' s model 論文首先推廣了suresh等人建立的三疊層材料熱彈塑性變形理論,取消了原理論模型中塑性區(qū)域單向擴展的限制性假設(shè),建立了反映疊層材料完整熱彈塑性變形歷史的熱彈塑性行為分析模型,該模型同時適用于塑性層的塑性區(qū)域雙邊擴展的情況,較suresh等人的模型適用性更為廣泛。