Optimization of a reinforced plastic shell with allowance for geometrically nonlinear factors

1979 ◽  
Vol 14 (6) ◽  
pp. 868-872
Author(s):  
V. L. Narusberg ◽  
R. B. Rikards ◽  
G. A. Teters
Keyword(s):  
Plastic Shell ◽  
Geometrically Nonlinear ◽  
Reinforced Plastic

Effect of a local load on an orthotropic glass-reinforced plastic shell

1972 ◽  
Vol 6 (1) ◽  
pp. 80-85 ◽  
Author(s):  
V. V. Vasil'ev
Keyword(s):  
Local Load ◽  
Plastic Shell ◽  
Reinforced Plastic

Study on glass-reinforced-plastic shell roofing

1978 ◽  
Vol 13 (4) ◽  
pp. 556-561
Author(s):  
G. I. Brankov ◽  
P. Marinov
Keyword(s):  
Plastic Shell ◽  
Reinforced Plastic

scholarly journals On the specifics of behavior of the sandwich plate composite facing layers under local loading

2020 ◽  
pp. 152-164
Author(s):  
V. N Paimushin ◽  
R. A Kayumov ◽  
F. R Shakirzyanov ◽  
S. A Kholmogorov
Keyword(s):  
Transverse Shear ◽  
Ultimate Load ◽  
Sandwich Plate ◽  
Stability Loss ◽  
Geometrically Nonlinear ◽  
Fiber Reinforced ◽  
External Layer ◽  
Fiber Reinforced Plastic ◽  
Reinforced Plastic ◽  
The Stability

The problem of a four-point bending of sandwich plates with external layers of a fiber reinforced plastic is considered, the results of numerical and experimental studies are presented. It is shown that in the vicinity of the loading roller, which exerts a local effect on the external layer, there is a strong decrease in the transverse shear secant modulus of fiber reinforced plastic with an increase in the transverse shear strains. The numerical solution of the problem of the plate bending is carried out in a physically and geometrically nonlinear formulation using various relations of the finite element method, two variants of geometrically nonlinear kinematic relations of the equations of the elasticity theory and different variants of the loading process parameter. Along with the classical nonlinear relations, the problem solutions are also constructed on the basis of consistent relations between strains and displacements, the use of which allows one to avoid the appearance occurrence of false bifurcation points. The results of the numerical calculations obtained with different methods and use of different ratios are presented, the analysis of which showed their small difference. It was revealed that the stability loss and failure of the external layers of a sandwich plate occurs due to the stability loss in the nonclassical transverse-shear mode. To determine the ultimate load, which is accompanied with a loss of strength of the external loaded layer, the Tsai-Wu criterion was used. A comparative analysis of the behavior of the plate external layers at different thicknesses and different diameters of the loading roller is carried out. It is shown that the ultimate load is practically not affected by the roller diameter, while the load at which the external layer loses its stability, is very sensitive to a change in its value.

Fatigue Life of a Structurally Like Sample of a Fuselage Panel with an Aluminum–Glass-Reinforced Plastic Shell

2021 ◽  
Vol 2021 (4) ◽  
pp. 400-405
Author(s):  
V. V. Antipov ◽  
M. D. Zaitsev ◽  
T. S. Rodchenko ◽  
Yu. M. Stoida ◽  
N. Yu. Serebrennikova ◽  
...  
Keyword(s):  
Fatigue Life ◽  
Plastic Shell ◽  
Reinforced Plastic

Static Geometrically Nonlinear Aeroelastic Framework for Multi-Fidelity Analysis

2020 ◽  
Vol 68 (4) ◽  
pp. 142-147
Author(s):  
Natsuki Tsushima ◽  
Masato Tamayama ◽  
Tomohiro Yokozeki
Keyword(s):  
Geometrically Nonlinear
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