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

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.

Modelling High Velocity Impact on Aluminium Alloy 7075-T6 under Axial Pretension

2014 ◽  
Vol 629 ◽  
pp. 498-502 ◽  
Author(s):  
K.A. Kamarudin ◽  
Al Emran Ismail
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Aluminium Alloy ◽  
High Velocity ◽  
Numerical Study ◽  
Element Model ◽  
Ballistic Limit ◽  
High Velocity Impact ◽  
Velocity Impact

This paper explains the utilisation of finite element model to analyse the ballistic limit of aluminium alloy 7075-T6 impacted by 8.33 g with 12.5 mm radius rigid spherical projectiles. This numerical study was compared with the results obtained experimentally. During impact, the targets were subjected to either non- or uniaxial- pretension and the projectile travelled horizontally to the target. It was observed that pretensioned targets were more vulnerable, which reduced the ballistic limit. The existence of harmful failures owing to pretension impact was ascertained and compared with the non-pretension targets.

scholarly journals Finite Element Modelling of High Velocity Impact on Plate Structures

2016 ◽  
Vol 136 ◽  
pp. 162-168 ◽  
Author(s):  
Milan Žmindák ◽  
Zoran Pelagić ◽  
Peter Pastorek ◽  
Martin Močilan ◽  
Martin Vybošťok
Keyword(s):  
Finite Element ◽  
High Velocity ◽  
Finite Element Modelling ◽  
High Velocity Impact ◽  
Plate Structures ◽  
Velocity Impact ◽  
Element Modelling
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