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室温时测定了EP(环氧树脂)胶体试件、EP胶粘剂/不锈钢胶接件(对接结构试件)在不同载荷作用下的单轴蠕变特性,并采用黏弹性多重积分Onaran模型对上述两种试件的蠕变性能进行了模拟。研究结果表明:对接结构试件与EP胶体试件相比,前者的蠕变现象比后者明显;当两者的蠕变行为相差最大时,前者的初始应变、最终应变分别比后者增加了19.92%、17.92%;黏弹性多重积分Onaran模型能很好描述两种试件的蠕变行为,并且该研究结果可作为对接结构疲劳分析等后续研究的基础。
The uniaxial creep properties of EP (epoxy resin) and EP / stainless steel (butt joint specimens) under different loads were measured at room temperature. The viscoelastic multiple integral Onaran model The creep properties of the specimens were simulated. The results show that the creep of the former is obviously higher than that of the latter when compared with the EP colloidal specimens. When the creep behavior of the two specimens is the largest, the initial strain and the final strain of the former increase respectively 19.92%, 17.92%. The viscoelastic multiple integral Onaran model can well describe the creep behaviors of the two specimens, and the results of this study can be used as the basis for subsequent studies such as fatigue analysis of butt joint structures.