Damage Induced by High-Velocity Impact on Composite Structures Using Finite Element Simulation

2016 ◽  
Vol 41 (2) ◽  
pp. 97-107 ◽  
Author(s):  
E. A. Duodu ◽  
J. N. Gu ◽  
Z. Shang ◽  
W. Ding ◽  
S. Tang
Keyword(s):  
Finite Element ◽  
Finite Element Simulation ◽  
High Velocity ◽  
Composite Structures ◽  
High Velocity Impact ◽  
Velocity Impact ◽  
Element Simulation

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.

scholarly journals A finite element approach to model high-velocity impact on thin woven GFRP plates

2020 ◽  
Vol 142 ◽  
pp. 103593
Author(s):  
L. Alonso ◽  
F. Martínez-Hergueta ◽  
D. Garcia-Gonzalez ◽  
C. Navarro ◽  
S.K. García-Castillo ◽  
...  
Keyword(s):  
Finite Element ◽  
High Velocity ◽  
High Velocity Impact ◽  
Finite Element Approach ◽  
Velocity Impact ◽  
Element Approach

Finite-Element Simulation and Analysis on High Velocity Impact Damage of Aircraft Panel Structure

2007 ◽  
Vol 353-358 ◽  
pp. 1033-1036
Author(s):  
Shu Lin Li ◽  
Man Yi Hou
Keyword(s):  
Finite Element ◽  
Finite Element Simulation ◽  
High Velocity ◽  
Equations Of State ◽  
Impact Damage ◽  
Simulation Models ◽  
Finite Element Program ◽  
Contact Algorithm ◽  
Response Characteristics ◽  
Element Simulation

The finite-element simulation models of the projectile and the discrete rod impacting to the aircraft panel structure in high velocity are established according to some experiment projects. Based on dynamic finite-element Program, the forming of impact damage in the panel structure is simulated. Through comparing the simulation results of damage pattern and size in the panel to the experiment results, the reliability of the material models and equations of state and contact algorithm used in the simulations is testified. Take the simulation of projectile vertically impacting to the panel as example, the aircraft panel structure response characteristics are analyzed briefly based on the results including the displacement of typical node in the panel, the stress course of one element and the energy change of the panel.

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