scholarly journals Optimum design of fibrous laminated composite plates subject to biaxial compression.

1991 ◽  
Vol 40 (450) ◽  
pp. 308-314 ◽  
Author(s):  
Mitsunori MIKI ◽  
Yoshihiko SUGIYAMA ◽  
Kenji SAKURAI
Keyword(s):  
Optimum Design ◽  
Laminated Composite ◽  
Composite Plates ◽  
Biaxial Compression ◽  
Laminated Composite Plates

scholarly journals Optimization of Laminated Composite Plates for Maximum Biaxial Buckling Load

2020 ◽  
Vol 36 (2) ◽  
Author(s):  
Pham Dinh Nguyen ◽  
Quang-Viet Vu ◽  
George Papazafeiropoulos ◽  
Hoang Thi Thiem ◽  
Pham Minh Vuong ◽  
...  
Keyword(s):  
Fiber Orientation ◽  
Orientation Angle ◽  
Laminated Composite ◽  
Optimization Procedure ◽  
Composite Plates ◽  
Buckling Load ◽  
Biaxial Compression ◽  
Laminated Composite Plates ◽  
Design Variables ◽  
Fiber Orientation Angle

This paper proposes an optimization procedure for maximization of the biaxial buckling load of laminated composite plates using the gradient-based interior-point optimization algorithm. The fiber orientation angle and the thickness of each lamina are considered as continuous design variables of the problem. The effect of the number of layers, fiber orientation angles, thickness and length to thickness ratios on the buckling load of the laminated composite plates under biaxial compression is investigated. The effectiveness of the optimization procedure in this study is compared with previous works.

Failure Mechanisms of Notched Laminates Under Biaxial Compression at Elevated Temperature

2000 ◽  
Author(s):  
Junghyun Ahn ◽  
Anthony M. Waas
Keyword(s):  
Elevated Temperature ◽  
Failure Mechanisms ◽  
Compressive Loading ◽  
Stress Raiser ◽  
Laminated Composite ◽  
Composite Plates ◽  
Biaxial Compression ◽  
Laminated Composite Plates ◽  
Final Failure ◽  
Circular Cutout

Abstract A compression test at elevated temperature was performed to investigate the notch sensitivity and failure mechanisms of fibrous laminated composite plates containing a stress raiser, in the form of a circular cutout, under equi-biaxial and uniaxial compressive loading. Strains measured at various locations on the specimen surface and cutout edge were used to monitor the initiation of failure. Unloading the specimen before global failure made it possible to understand the failure mechanism associated with the final failure mode.

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