TY - JOUR
T1 - Discrete topology optimization of ply orientation for a carbon fiber reinforced plastic (CFRP) laminate vehicle door
AU - Wu, Chi
AU - Gao, Yunkai
AU - Fang, Jianguang
AU - Lund, Erik
AU - Li, Qing
PY - 2017/8/15
Y1 - 2017/8/15
N2 - This study addresses the design of ply orientation for a CFRP vehicle door by implementing a Discrete Material Optimization (DMO) method in a general-purpose commercial finite element code (ABAQUS) and mathematical analysis tool (MATLAB). To accommodate multiple loading conditions, the weighted mean compliance of the CFRP vehicle door was taken as the objective function, subject to the constraints on the local displacements, primary natural frequency and manufacturability. The sensitivities of objective and constraints were calculated by using the strain vectors, which is a more general method than using element stiffness matrices and allows extracting local displacements from the commercial finite element code. A gradient-based algorithm was employed in the DMO approach to tackle the large-scale problem. In the discrete topology optimization, four material penalization schemes were attempted in this study. The proposed DMO approach was compared with the empirical design and the existing method in commercial software. The results demonstrated that the proposed method is able to produce a more competent solution than the empirical design and other optimization methods efficiently.
AB - This study addresses the design of ply orientation for a CFRP vehicle door by implementing a Discrete Material Optimization (DMO) method in a general-purpose commercial finite element code (ABAQUS) and mathematical analysis tool (MATLAB). To accommodate multiple loading conditions, the weighted mean compliance of the CFRP vehicle door was taken as the objective function, subject to the constraints on the local displacements, primary natural frequency and manufacturability. The sensitivities of objective and constraints were calculated by using the strain vectors, which is a more general method than using element stiffness matrices and allows extracting local displacements from the commercial finite element code. A gradient-based algorithm was employed in the DMO approach to tackle the large-scale problem. In the discrete topology optimization, four material penalization schemes were attempted in this study. The proposed DMO approach was compared with the empirical design and the existing method in commercial software. The results demonstrated that the proposed method is able to produce a more competent solution than the empirical design and other optimization methods efficiently.
KW - Carbon fiber reinforced plastic (CFRP)
KW - Discrete Material Optimization (DMO)
KW - Ply orientation
KW - Topology optimization
KW - Vehicle door
UR - http://www.scopus.com/inward/record.url?scp=85018965439&partnerID=8YFLogxK
U2 - 10.1016/j.matdes.2017.04.089
DO - 10.1016/j.matdes.2017.04.089
M3 - Journal article
AN - SCOPUS:85018965439
SN - 0264-1275
VL - 128
SP - 9
EP - 19
JO - Materials and Design
JF - Materials and Design
ER -