Three-dimensional exact elasticity solutions for antisymmetric angle-ply laminated composite plates

2021 ◽  
Author(s):  
M. C. Ray
Keyword(s):  
Three Dimensional ◽  
Laminated Composite ◽  
Composite Plates ◽  
Laminated Composite Plates ◽  
Elasticity Solutions

Shape Optimization of Cutouts in Laminated Composite Plates Using Solid Element

2005 ◽  
Vol 297-300 ◽  
pp. 2740-2745
Author(s):  
Seok Yoon Han ◽  
Y.J. Ma ◽  
J.Y. Park
Keyword(s):  
Shape Optimization ◽  
Three Dimensional ◽  
Laminated Composite ◽  
Composite Plates ◽  
Volume Control ◽  
Growth Strain ◽  
Laminated Composite Plates ◽  
Failure Index ◽  
Solid Element ◽  
Strain Method

Shape optimization was performed to obtain the precise shape of cutouts including the internal shape of cutouts in laminated composite plates by three dimensional modeling using solid element. The volume control of the growth-strain method was implemented and the distributed parameter was chosen as Tsai-Hill failure index for shape optimization. In order to verify the validity of the obtained optimal shapes, the changes of the maximum Tsai-Hill failure index were examined for each load condition and cutouts. The following conclusions were obtained in this study; 1) It was found that growth-strain method was applied efficiently to shape optimization of three dimensional cutouts in anisotropic laminate composite, 2) The optimal three dimensional shapes of the various load conditions and cutouts were obtained, 3) The maximum Tsai-Hill failure index was reduced up to 68% when shape optimization was performed under the initial volume by volume control of growth-strain method.

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