复合材料先进网格结构共固化工艺的温度场模拟  

Simulation of temperature field for an advanced grid-stiffened composite structure in the co-curing process

作　　者：黄其忠[1] 任明法[1] 陈浩然[1] 张驰群 

机构地区：[1]大连理工大学工业装备结构分析国家重点实验室,大连116023 [2]中国寰球工程公司,北京100028

出　　处：《复合材料学报》2011年第3期141-147,共7页Acta Materiae Compositae Sinica

基　　金：国家自然科学基金(10702012);辽宁省博士科研启动基金(20071093);国家973计划(2006CB601205);国家自然科学基金重点项目(90816025)

摘　　要：基于ANSYS软件开发了用于模拟复合材料固化过程中温度-固化度耦合场变化程序,并分别采用二维和三维有限元模型对复合材料先进正交网格结构的软模辅助共固化工艺过程进行了数值仿真。计算结果分析表明:二维有限元模型不考虑网格结构肋骨交叉点的影响,能以较大时间步长进行共固化工艺的数值模拟,且分析结果具有较高的精度;三维精细有限元模型可考虑肋骨交叉点在共固化工艺中对复合材料先进网格结构内温度-固化度耦合场的影响;肋骨交叉点附近的温度场明显高于结构的其他部位。Based on the software ANSYS,a user-program was developed for simulating the variation of temperature-cure degree coupling field in a composite curing process.Both of a 2D and 3D finite element models were used to analyze the coupling field in an advanced orthogonal grid-stiffened composite structure during the soft-mold aided co-curing process.The calculation results show that the 2D finite element model proposed in the paper could effectively simulate the co-curing process for an advanced grid-stiffened composite structure with a larger time step regardless the node of crossing ribs,and the 3D precise finite element model could be employed to obtain the distribution of temperature and cure degree fields accurately considering the node of crossing ribs.It is found that the temperature near the node of crossing ribs in the advanced grid-stiffened composite structure is obviously higher than other areas during the co-curing process.

关 键 词：共固化工艺 先进网格 复合材料结构 多场耦合 低成本制造 

分 类 号：TB332[一般工业技术—材料科学与工程]