Wang Bolong, Li Mingzhe, Yang Yunfei, Liu Zhiwei
Dieless Forming Technology Center, Jilin University, Changchun 130025, China.
School of Mechanical Engineering, Anhui University of Science and Technology, Huainan, Anhui 232001, China.
Rev Sci Instrum. 2015 Aug;86(8):086106. doi: 10.1063/1.4929712.
A high-pressure device with a large cavity was investigated using finite-element analysis. This device is called a double-beveled multilayer stagger-split die, and consists of two supported rings and a multilayer divided body assemblage. Each divided cylinder body has two bevels in the pressurized surface. We simulated the pressure capacity of this device according to different failure criteria. The results were compared with those of a multilayer stagger-split die and belt type die. The bearing capacity of the double-beveled multilayer stagger-split die was more than 7.3 GPa. A group of comparative experiments were conducted to validate the simulated results, and the experimental results show the actual pressure capacity was higher than the simulation.
使用有限元分析对一种具有大腔体的高压装置进行了研究。该装置称为双斜面多层交错分裂模具,由两个支撑环和一个多层分体组件组成。每个分体圆柱体在受压表面有两个斜面。我们根据不同的失效准则模拟了该装置的耐压能力。将结果与多层交错分裂模具和带式模具的结果进行了比较。双斜面多层交错分裂模具的承载能力超过7.3吉帕。进行了一组对比实验以验证模拟结果,实验结果表明实际耐压能力高于模拟值。