Non-linear thermoelastic analysis of thin-walled structures with cohesive-like interfaces relying on the solid shell concept

2022 ◽  
Vol 202 ◽  
pp. 103696
Author(s):  
Pavan Kumar Asur Vijaya Kumar ◽  
Aamir Dean ◽  
Shahab Sahraee ◽  
Jose Reinoso ◽  
Marco Paggi
Keyword(s):  
Solid Shell ◽  
Thermoelastic Analysis ◽  
Thin Walled Structures ◽  
Non Linear ◽  
Thin Walled

Application of Finite Strip Method in Vehicle Design: Part 2 of 2—Post Buckling Analysis of Thin Walled Structures

2011 ◽  
Author(s):  
Umesh Gandhi ◽  
Stephane Roussel ◽  
K. Furusu ◽  
T. Nakagawa
Keyword(s):  
Load Capacity ◽  
High Strength ◽  
Maximum Load ◽  
Element Formulation ◽  
Tangent Stiffness Matrix ◽  
Finite Strip ◽  
Thin Walled Structures ◽  
Non Linear ◽  
Post Buckling ◽  
Thin Walled

Thin walled parts of high strength steel, under compressive loads are likely to buckle locally, and then depending on geometry and material properties the section may continue to carry additional load. For the post buckling conditions the deformations are large but finite. Therefore we need to consider geometrical non linearity in the calculations. In this paper we are extending the linear finite strip element formulation to include geometrical non linearity. Method to derive secant and tangent stiffness matrix for non linear finite strip element is developed and then the element formulation is verified for inplane and center load on a plate using Newton Raphson solver. The new non linear finite strip element can be useful in estimating maximum load capacity (including post buckling) of thin walled structures from 2D data.

Non-linear analysis of thin-walled structures using plate elements

1994 ◽  
Vol 37 (10) ◽  
pp. 1697-1711 ◽  
Author(s):  
C. K. Chin ◽  
F. G. A. Al-Bermani ◽  
S. Kitipornchai
Keyword(s):  
Linear Analysis ◽  
Thin Walled Structures ◽  
Plate Elements ◽  
Non Linear ◽  
Thin Walled

scholarly journals Experimental and Numerical Analysis of a Composite Thin-Walled Cylindrical Structures with Different Variants of Stiffeners, Subjected to Torsion

Materials ◽  
2019 ◽  
Vol 12 (19) ◽  
pp. 3230 ◽  
Author(s):  
Tomasz Kopecki ◽  
Przemysław Mazurek ◽  
Tomasz Lis
Keyword(s):  
Numerical Analysis ◽  
Numerical Analyses ◽  
Modified Model ◽  
Cylindrical Structures ◽  
Local Loss ◽  
Thin Walled Structures ◽  
Non Linear ◽  
Thin Walled ◽  
Distribution Of Stress ◽  
The Impact

The aim of the study was to determine the impact of the use of isogrid stiffeners on the stress and displacement distribution of a thin-walled cylindrical shell made of layered composites subjected to torsion. It also strives to define criteria for assessing the results of non-linear numerical analysis of models of the examined structures by comparing them with the results of the model experiment. The study contains the results of experimental research using models made of glass–epoxy composites and the results of numerical analyses in non-linear terms. The experiment was carried out using a special test stand. The research involved two types of considered structures. The results of the research allowed to create the concept of an adequate numerical model in terms of the finite element method, allowing to determine the distribution of stress and strain in the components of the studied structures. Simultaneously, the obtained conformity between the results of non-linear numerical analyses and the experiment allows to consider the results of analyses of the modified model in order to determine the properties of different stiffening variants as reliable. The presented research allows to determine the nature of the deformation of composite thin-walled structures in which local loss of stability of the covering is acceptable in the area of post-critical loads.

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