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金属材料在振动载荷下的应力-应变曲线较常规情况明显降低,材料的本构关系与静态拉伸情况下的本构关系有明显的不同,因而不能直接引用现有的弹塑性模型来描述.作者通过建立振动载荷下材料的力学行为实验系统,研究了金属材料在振动条件下的特殊力学行为,分析了材料在振动作用下的特殊现象,得出了振动参数对金属材料的应力-应变曲线的影响规律,可为合理控制金属材料的加工过程提供有利的技术数据.图2,表1,参8.
The stress-strain curves of metallic materials under the vibration load are obviously lower than the conventional ones. The constitutive relations of the materials under the static tensile conditions are obviously different, so they can not be directly described by the existing elastoplastic models. By setting up the experimental system of the mechanical behavior of the material under vibration load, the author has studied the special mechanical behavior of the metal material under the condition of vibration, analyzed the special phenomenon of the material under the vibration and obtained the stress-strain curve of the metal material Of the law of influence, which can provide favorable technical data for the reasonable control of the processing of metal materials Figure 2, Table 1, reference 8.