High efficiency analysis model for composite honeycomb sandwich plate by using variational asymptotic method

2021 ◽  
Vol 163 ◽  
pp. 107709
Author(s):  
Zheng Shi ◽  
Yifeng Zhong ◽  
Qingshan Yi ◽  
Xiao Peng
Keyword(s):  
Asymptotic Method ◽  
Sandwich Plate ◽  
High Efficiency ◽  
Efficiency Analysis ◽  
Analysis Model ◽  
Honeycomb Sandwich ◽  
Honeycomb Sandwich Plate ◽  
Variational Asymptotic ◽  
Variational Asymptotic Method

Numerical Simulation of Penetration Effect of Spherical Fragment on Square Honeycomb Sandwich Plate

2011 ◽  
Vol 474-476 ◽  
pp. 1869-1873 ◽  
Author(s):  
Tao Wang ◽  
Wen Li Yu ◽  
San Qiang Dong ◽  
Yun Liang Gao
Keyword(s):  
Oblique Incidence ◽  
Sandwich Plate ◽  
Normal Incidence ◽  
Impact Angle ◽  
Damage Effect ◽  
Penetration Effect ◽  
Honeycomb Sandwich ◽  
Honeycomb Sandwich Plate ◽  
Solid Plate ◽  
Active Fragment

In this paper, a spherical fragment penetrating to square honeycomb sandwich plate and solid plate which has the same mass as sandwich plate are simulated by LS-DYNA code. The fragment impacts plates at normal incidence and oblique incidence with 30º impact angle at the velocity of 300m/s, 350m/s, 380m/s, 400m/s, 450m/s and 500m/s separately. And the damage pattern of sandwich plate, the acceleration of fragment and the energy absorption of sandwich plate are acquired. For sandwich plate, the acceleration of fragment is less than that of solid plate and the internal energy absorbed is larger that that of solid plate. The result can be used to design new active fragment to improve the damage effect to sandwich plate.

scholarly journals Geometric Nonlinear Analysis of Composite Stiffened Panels Using Variational Asymptotic Method

AIAA Journal ◽  
2020 ◽  
Vol 58 (9) ◽  
pp. 4189-4203
Author(s):  
K. Jagath Narayana ◽  
Ramesh Gupta Burela ◽  
Sathiskumar Anusuya Ponnusami ◽  
Dineshkumar Harursampath
Keyword(s):  
Nonlinear Analysis ◽  
Asymptotic Method ◽  
Stiffened Panels ◽  
Geometric Nonlinear ◽  
Variational Asymptotic ◽  
Variational Asymptotic Method ◽  
Geometric Nonlinear Analysis
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