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首先在迹应力分析基础上讨论了单、双模量梁在受拉和受弯共同作用下中性轴偏移的问题,分析了中性轴偏移产生的附加弯矩及其对梁挠曲线微分方程的影响。并推导出双模量简支梁的挠曲线方程。随后,利用新的挠曲线微分方程对悬臂梁稳定性进行分析,利用数值解法计算不同拉压模量下双模量悬臂梁的屈曲荷载,并通过计算结果对双模量材料的性能作出初步分析。
Firstly, based on the analysis of trace stress, the problem that the neutral axis is displaced under tension and bending is discussed. The additional bending moment caused by the neutral axis offset and its influence on the beam deflection curve Influence of differential equations. And deduced the flexural equation of the bimodal beam. Subsequently, the stability of the cantilever beam is analyzed by using the new deflection differential equation. The buckling load of the bimodal beam with different tensile and compressive modulus is calculated by numerical solution. The performance of the bimodal material is preliminarily analyzed by the calculation results .