Combined Topology and Fiber Path Optimization of Fiber-Reinforced Composites
This paper presents a study on the model and solution algorithm for determining optimum composite topology and fiber path.Nodal design variables are used in the formulations, including variable for the fiber orientations at the nodal points and those for the material densities.A 4-noded hybrid stress element is presented to analyze the 2D composite with variable material density and fiber orientation.Total volumes of the fiber and the matrix material used can be considered as either the objective or a constraint function.In this study, the compliance of the composite under static loads is taken as the objective function.The method of moving asymptotes (MMA) is employed at the optimizer.Explicit expressions for the sensitivities of all the constraint and objective functions are derived.Numerical studies are conducted to evaluate the validity of the optimization model and effectiveness of the algorithm.It is shown that structures with clear topologies and reasonable fiber paths can be obtained.
fiber-reinforced composites combined optimization topology optimization fiber orientation hybrid stress element nodal design variable
Peng Wei Jun Huang Haitao Ma
State Key Laboratory of Subtropical Building Science,School of Civil Engineering and Transportation,South China University of Technology,510641,Guangzhou,China
国际会议
黄山
英文
1-8
2012-06-18（万方平台首次上网日期，不代表论文的发表时间）