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复合材料网格结构软模共固化成型工艺数值仿真
  • 期刊名称：复合材料学报。2010, 27(1): 25-31. (EI收录)
  • 时间：0
  • 分类：TB332[一般工业技术—材料科学与工程] TB330.11[一般工业技术—材料科学与工程]
  • 作者机构：[1]大连理工大学工业装备结构分析国家重点实验室,大连116024
  • 相关基金：国家自然科学基金面上项目（10702012）; 国家重点基础研究发展计划项目（2006CB601205）; 国家自然科学基金重点项目（90816025）
  • 相关项目：先进复合材料网格结构共固化工艺与软模成型参数优化分析
关键词： 复合材料网格结构, 软模, 共固化, 数值模拟, 工艺参数, advanced grid structure（AGS）, soft-mode, co-curing, numerical simulation, technical parmeters
中文摘要：

基于平面应变有限元分析模型与策略,研究了软模共固化成型工艺中工艺间隙、固化周期和残余应力对复合网格结构性能的影响。通过模拟一典型复合材料网格结构的共固化工艺过程,得出了合适工艺间隙的确定方法,建立了降低耦合场梯度策略,并且解释了产生残余应力的原因。这对复合网格结构的软模共固化工艺的工艺参数合理选择具有一定的参考价值。

英文摘要：

Based on the 2D plane strain finite element analysis model and strategy,the influences of technology gap,curing cycle and residual stress on the performance of grid structure were studied.From numerical simulation of the co-curing process for a typical advanced grid stiffen structure,a method for appropriate technical gap is given,the strategy for reducing the gradient of coupling fields is provided and the mechanism of residual stress generation is explained.Therefore,this study will be meaningful for the proper determination of technical parameters during soft-mode aided co-curing processes.

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