Comments to the paper “A new approach for the large deflection finite element analysis of isotropic and composite plates with arbitrary oriented stiffeners” by Roberto Ojeda, B. Gangadhara Prusty, Norman Lawrence and Giles Thomas [Finite Elements in Analysis and Design 43 (13) (2007) 989–1002]

2008 ◽  
Vol 44 (14) ◽  
pp. 872-873
Author(s):  
Chaitali Ray
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Finite Elements ◽  
Large Deflection ◽  
Composite Plates ◽  
Element Analysis ◽  
New Approach ◽  
Analysis And Design

Laminated Plate Elements Based on Higher-Order Shear Deformation Theories

2008 ◽  
Vol 32 ◽  
pp. 119-124
Author(s):  
Yi Xia Zhang ◽  
Chun Hui Yang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Finite Elements ◽  
Shear Deformation ◽  
Composite Plates ◽  
Higher Order ◽  
Laminated Plate ◽  
Element Analysis ◽  
Plate Elements ◽  
Shear Deformation Theories

Efficient and accurate finite elements are crucial for finite element analysis to provide adequate prediction of the structural behavior. A large amount of laminated plate elements have been developed for finite element analysis of laminated composite plates based on the various lamination theories. A recent and complete review of the laminated finite elements based on the higher-order shear deformation theories, including the global higher-order theories, zig-zag theories and the global-local higher-order theories is presented in this paper. Finally some points on the development of the laminated plate elements are summarized.

Probabilistic Finite-Element Analysis of S2-Glass Epoxy Composite Beams for Damage Initiation Due to High-Velocity Impact

2016 ◽  
Vol 2 (4) ◽  
Author(s):  
Shivdayal Patel ◽  
Suhail Ahmad ◽  
Puneet Mahajan
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
High Velocity ◽  
Laminated Composite ◽  
Composite Plates ◽  
High Velocity Impact ◽  
Element Analysis ◽  
Fiber Failure ◽  
Velocity Impact ◽  
Damage Initiation

The safety predictions of composite armors require a probabilistic analysis to take into consideration scatters in the material properties and initial velocity. Damage initiation laws are used to account for matrix and fiber failure during high-velocity impact. A three-dimensional (3D) stochastic finite-element analysis of laminated composite plates under impact is performed to determine the probability of failure (Pf). The objective is to achieve the safest design of lightweight composite through the most efficient ply arrangement of S2 glass epoxy. Realistic damage initiation models are implemented. The Pf is obtained through the Gaussian process response surface method (GPRSM). The antisymmetric cross-ply arrangement is found to be the safest based on maximum stress and Yen and Hashin criteria simultaneously. Sensitivity analysis is performed to achieve the target reliability.

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