SIMULATION OF MOULD-FILLING IN RTM PROCESS FOR 3D COMPLEX SHAPE THIN SHELL PARTS
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摘要: 采用有限单元/控制体积方法,编写了RTM工艺注模过程模拟程序SHELLCV。SHELLCV程序包含三角形壳元和矩形壳元两种单元,可以模拟复杂形状三维薄壁构件的RTM制造工艺注模过程,得到任意时刻的树脂流动前峰曲线、压力场分布。与解析解比较验证了SHELLCV程序的稳定性和可靠性。算例研究表明SHELLCV程序可为工艺设计:注射口和排气口的布置,合模压力提供有效的参考依据。
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关键词:
- RTM /
- 有限单元/控制体积方法 /
- 流动前峰
Abstract: A program SHELLCV was composed based on 3D shell element by the finite element /control volume method. SHELLCV can simulate the process of mould-filling in RTM for the 3D complex shape thin parts and predict the resin flow front advancement and the distribution of pressure field at any instant in time. Comparing with the analytical solutions validated the accuracy and the reliability of SHELLCV program. Numerical examples show SHELLCV program can provide the effective references for the process design such as inlets and outlet arrangement and the pressure of the mold. -
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