Geometrically nonlinear transient analysis of composite laminated plate and shells subjected to low-velocity impact

2016 ◽  
Vol 142 ◽  
pp. 7-14 ◽  
Author(s):  
I.H. Choi
Keyword(s):  
Transient Analysis ◽  
Low Velocity Impact ◽  
Geometrically Nonlinear ◽  
Laminated Plate ◽  
Low Velocity ◽  
Velocity Impact ◽  
Composite Laminated Plate ◽  
Nonlinear Transient ◽  
Nonlinear Transient Analysis

Parametric Studies of Shape Memory Alloy Hybrid Composite Laminates Under Low-Velocity Impact

2016 ◽  
Vol 32 (5) ◽  
pp. 565-577
Author(s):  
Y.-C. Lin ◽  
Y.-L. Chen ◽  
H.-W. Chen
Keyword(s):  
Phase Transformation ◽  
Shape Memory Alloy ◽  
Shape Memory ◽  
Hybrid Composite ◽  
Composite Plate ◽  
Volume Fraction ◽  
Low Velocity Impact ◽  
Laminated Plate ◽  
Low Velocity ◽  
Velocity Impact

AbstractIn the paper, the influence of shape memory alloy (SMA) by varying the parameters such as volume fraction, orientation, and temperature on the hybrid-SMA composite laminate subjected to low-velocity impact is studied. A theoretical model for the composite laminated plate bonded with SMA reinforced layers is presented. The constitutive relation of the SMA layer is obtained by using the method of micromechanics. The governing relations obtained can be used for theoretical predications of thermomechanical properties of SMA plies in this paper. The analytical expressions for the hybrid SMA composite plate are derived based on Tanaka's constitutive equation and linear phase transformation kinetics presented by Liang and Rogers.The laminated plate theory, first-order shear deformation theory and minimal potential energy principle is utilized to solve the governing equations of the hybrid composite plate and calculate the absorbed energies including tensile, shear and bending.An orthogonal array and analysis of variance is employed to investigate the influence of the mentioned parameters on the energy absorption of the hybrid laminated plate. The results showed that the effects of the phase transformation temperature are more significant than the effects of the volume fraction and orientation of SMA on structural energy absorption.

scholarly journals A FINITE ELEMENT ANALYSIS OF CRITICAL BUCKLING LOAD OF COMPOSITE PLATE AFTER LOW VELOCITY IMPACT

2020 ◽  
Vol 18 (2) ◽  
pp. 195
Author(s):  
Redha Akbar Ramadhan ◽  
Muhamad Giri Suada ◽  
Hendri Syamsudin
Keyword(s):  
Composite Plate ◽  
Weight Ratio ◽  
Laminated Composite ◽  
Buckling Load ◽  
Low Velocity Impact ◽  
Special Method ◽  
Laminated Plate ◽  
Low Velocity ◽  
Critical Buckling Load ◽  
Velocity Impact

Composite is a material formed from two or more materials that macroscopically alloyed into one material. Nowadays, composite has been generally applied as lightweight structure of aircraft. This is due to the fact that composites having high strength-to-weight ratio. It means the composites have the capability to take on various loads, despite their lightweight property.Laminate composite is one type of composite that has been generally used in aircraft industries. This type of composite is susceptible to low-velocity impact induced damage. This type of damage can be happening in manufacture, operation, or even in maintenance. Low-velocity impact could cause delamination. Delamination happens when the plies of laminated composites separated at the interface of the plies. This type of damage is categorized as barely visible damage, means that the damage couldn’t be detected with visual inspection. Special method and tool would be needed to detect the damage. Delamination will decrease the strength of the laminated composite.Delamination can be predicted with numerical simulation analysis. With increasing capability of computer, it is possible to predict the delamination and buckling of laminated composite plate. This research presents the comparisons of buckling analysis results on laminated plate composite and damaged laminated plate composite. By the result of LVI simulation, it is shown that low velocity impact of 19.3 Joule causing 6398 mm2 C-Scan delamination area inside the laminated composite. The delamination causing structural instability that will affect buckling resistance of the plate. The result of analysis shows that the existence of delamination inside laminate composite will lower its critical buckling load up to 90% of undamaged laminate’s critical buckling load.Keywords : composite, laminate, delamination, buckling.

Low-velocity impact response of geometrically nonlinear functionally graded graphene platelet-reinforced nanocomposite plates

2018 ◽  
Vol 95 (3) ◽  
pp. 2333-2352 ◽  
Author(s):  
Mitao Song ◽  
Xiaoqian Li ◽  
Sritawat Kitipornchai ◽  
Qinsheng Bi ◽  
Jie Yang
Keyword(s):  
Functionally Graded ◽  
Impact Response ◽  
Low Velocity Impact ◽  
Geometrically Nonlinear ◽  
Low Velocity ◽  
Velocity Impact ◽  
Graphene Platelet
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