Reliability-based Design Optimization of Laminated Composite Structures under Delamination and Material Property Uncertainties

2021 ◽  
pp. 106561
Author(s):  
Haichao An ◽  
Byeng D. Youn ◽  
Heung Soo Kim
Keyword(s):  
Design Optimization ◽  
Material Property ◽  
Composite Structures ◽  
Laminated Composite ◽  
Reliability Based Design Optimization ◽  
Reliability Based Design ◽  
Laminated Composite Structures

Reliability-based design optimization of 3D orthogonal woven composite automobile shock tower

2021 ◽  
pp. 002199832110476
Author(s):  
Zhao Liu ◽  
Lei Zhang ◽  
Ping Zhu ◽  
Mushi Li
Keyword(s):  
Design Optimization ◽  
Composite Structures ◽  
Optimization Design ◽  
Optimization Procedure ◽  
Woven Composite ◽  
Reliability Based Design Optimization ◽  
Multi Scale ◽  
Reliability Based Design ◽  
Design Variables ◽  
3D Orthogonal Woven

Three-dimensional orthogonal woven composites are noted for their excellent mechanical properties and delamination resistance, so they are expected to have promising prospects in lightweight applications in the automobile industry. The multi-scale characteristics and inherent uncertainty of design variables pose great challenges to the optimization procedure for 3D orthogonal woven composite structures. This paper aims to propose a reliability-based design optimization method for guidance on the lightweight design of 3D orthogonal woven composite automobile shock tower, which includes design variables from material and structure. An analytical model was firstly set up to accurately predict the elastic and strength properties of composites. After that, a novel optimization procedure was established for the multi-scale reliability optimization design of composite shock tower, based on the combination of Monte Carlo reliability analysis method, Kriging surrogate model, and particle swarm optimization algorithm. According to the results, the optimized shock tower meets the requirements of structural performance and reliability, with a weight reduction of 37.83%.

Reliability based design with a degradation model of laminated composite structures

1996 ◽  
Vol 12 (1) ◽  
pp. 16-28 ◽  
Author(s):  
C. A. Concei��o Ant�nio ◽  
A. Torres Marques ◽  
J. F. Gon�alves
Keyword(s):  
Composite Structures ◽  
Laminated Composite ◽  
Degradation Model ◽  
Reliability Based Design ◽  
Laminated Composite Structures
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