复合钢板压力容器焊缝界面高温蠕变数值模拟

Numerical Simulation of Composite Steel Pressure Vessel Weld Interface of High Temperature Creep

高温下工作的复合钢板压力容器,既要承受高温作用,又要承受内压作用,在容器焊缝处易发生蠕变变形。研究焊缝界面的蠕变变形机理,建立复合钢板压力容器焊缝蠕变的理论模型,应用ANSYS软件对焊缝界面的蠕变进行数值模拟分析,为焊缝界面的安全评估提供一个参考的依据。

Working under high temperature of the composite steel pressure vessel, it is necessary to endure high temperature and internal pressure,so vessel welding interface is susceptible to creep deformation. The paper research on the creep deformation mechanism of weld interface, set up a creep theory, model of composite pressure vessel steel weld, apply the ANSYS software to weld interface creep numerical simulation, providing a reference theoretical basis for the weld interface of the security assessment.