双金属复合管的弹塑性分析及有限元模拟

根据双金属复合管的一次胀压成形原理,对假设内管为线性强化材料模型、外管为理想弹性材料模型的复合管进行了弹塑性分析计算,得出胀合压力与内外管之间残余接触压力的计算式,并利用Ansys进行有限元模拟分析.结果表明,该模型的理论预测与仿真结果基本一致,且得到复合管仿真成形曲线与胀合成形原理基本统一.

Elastoplasticity Analysis and Finite Element Simulation of Thermometal Composite Tubes

Basing on swelling pressure forming principle of thermometal composite tubes,both elastoplasticity analysis and calculation of composite tube with ideal elastic material-made external tube and the linearly-intensified material-made internal tube were implemented to obtain calculation formula for swelling pressure and residual contact pressure between its internal and external tube;having them simulated with Ansys shows that theoretical prediction agrees with simulation results,and composite tube modeling curve complies with swelling pressure forming principle.