TY  - EJOU
AU  - Mei, Chao 
AU  - Wang, Qifu 
AU  - Yu, Chen 
AU  - Xia, Zhaohui 

TI  - IGA Based Bi-Layer Fiber Angle Optimization Method for Variable Stiffness Composites
T2  - Computer Modeling in Engineering \& Sciences

PY  - 2020
VL  - 124
IS  - 1
SN  - 1526-1506

AB  - This paper presents a topology optimization method for variable stiffness composite panels with varying fiber orientation and curvilinear fiber path.
Non-uniform rational B-Splines (NURBS) based Isogeometric analysis (IGA) is
utilized for the numerical computation of the general minimum compliance problem. The sensitivity analysis of the structure compliance function for the density
and bi-layer orientation is conducted. The bi-layer fiber paths in the design
domain are generated using streamline method and updated by divided pieces
reselection method after the optimization process. Several common examples
are tested to demonstrate the effectiveness of the method. The results show that
the proposed method can generate more manufacturable fiber paths than some
typical topology optimization methods.
KW  - Isogeometric analysis; fiber angle optimization; variable stiffness composites

DO  - 10.32604/cmes.2020.09948