Numerical modeling of nonlinear deformation and buckling of composite plate-shell structures under pulsed loading

1999 ◽  
Vol 35 (6) ◽  
pp. 495-506 ◽  
Author(s):  
N. A. Abrosimov
Keyword(s):  
Numerical Modeling ◽  
Composite Plate ◽  
Nonlinear Deformation ◽  
Shell Structures ◽  
Pulsed Loading

scholarly journals Experimentation and numerical modeling on the response of woven glass/epoxy composite plate under blast impact loading

2020 ◽  
Vol 15 (1) ◽  
Author(s):  
Kasmidi Gunaryo ◽  
Heri Heriana ◽  
M. Rafiqi Sitompul ◽  
Andi Kuswoyo ◽  
Bambang K. Hadi
Keyword(s):  
Numerical Modeling ◽  
Impact Loading ◽  
Composite Plate ◽  
Epoxy Composite

scholarly journals Nonlinear deformation of circular discrete ribbed plate under influence of pulse loading

2021 ◽  
Vol 264 ◽  
pp. 02018
Author(s):  
Rustam Khalmuradov ◽  
Utkir Nishonov
Keyword(s):  
Numerical Method ◽  
Geometric Nonlinearity ◽  
Nonlinear Deformation ◽  
Strain State ◽  
Circular Disc ◽  
Pulse Loading ◽  
Stress Strain ◽  
Pulsed Loading ◽  
Stress Strain State ◽  
Unit Function

The stress-strain state of a circular disc, discretely finned in a circle, under the influence of the pulse loading, is numerically investigated. Thus the geometric nonlinearity between displacement and deformation is taken into account. The structure consists of boarding and reinforced ribs, the materials of which are the same and obey Hooke's law. The sections of the ribs are constant. The height of the ribs and their locations are specified using a unit function. It is considered that the plate is deformed under the influence of the pulsed loading. A numerical method is used to solve the problem.

An Improved Four-Node Element for Analysis of Composite Plate/Shell Structures Based on Twice Interpolation Strategy

2019 ◽  
Vol 17 (06) ◽  
pp. 1950020
Author(s):  
Hoang Lan Ton-That ◽  
Hieu Nguyen-Van ◽  
Thanh Chau-Dinh
Keyword(s):  
Composite Plate ◽  
Shear Deformation Theory ◽  
Laminated Composite ◽  
Shear Stiffness ◽  
Shell Structures ◽  
Benchmark Problems ◽  
Stiffness Matrices ◽  
Order Polynomial ◽  
Interpolation Strategy ◽  
Membrane Bending

This paper deals with numerical linear analyses of laminated composite plate/shell structures. The method is based on a four-node quadrilateral element, namely, SQ4T, within the framework of the first-order shear deformation theory (FSDT). This element is established by incorporating the twice interpolation strategy (TIS) into a traditional four-node finite element to build the membrane, bending and shear stiffness matrices. Many desirable characteristics of this efficient numerical method are shown as continuous nodal gradients, higher-order polynomial basis, no increase in number of the degree of freedom of the system. The performance of the proposed element is validated and demonstrated through several numerical benchmark problems. Convergence studies and comparison with other existing solutions in the literature suggest that the present element is efficient, accurate and free of lockings.

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