Buckling problems of thin elastic shells [PDF]
Компьютерные исследования и моделирование, 2018 The article covers several mathematical problems relating to elastic stability of thin shells in view of inconsistencies that have been recently identified between the experimental data and the predictions based on the shallow- shell theory.
V. A. Grachev, Yu. S. Nayshtut
doaj +1 more source
Calculation of the Stability Index in Parameter-Dependent Calculus of Variations Problems: Buckling of a Twisted Elastic Strut [PDF]
, 2002 We consider the problem of minimizing the energy of an inextensible elastic strut with length 1 subject to an imposed twist angle and force. In a standard calculus of variations approach, one first locates equilibria by solving the Euler--Lagrange ODE ...
Hoffman, Kathleen A. +2 more
core +2 more sources
Wrinkling prediction procedure in thin sheet metal forming processes with adaptive mesh refinement. Part 1: contact free wrinkling [PDF]
, 2001 Buckling of structures with imperfections, quasi-buckling (QB), is studied. At the bifurcation load, these structures show a smooth transition into one of the stable postbuckling equilibrium states, instead of the traditional sudden change in deflection ...
Selman, A.
core +8 more sources
Numerical and Analytical Investigation of Stability of the Reinforced Plate
Communications, 2021 The work is aimed at the construction of an algorithm for studying the equilibrium states of a reinforced plate near critical points, using the first (cubic terms) nonlinear terms of the potential energy expansion.
Gaik A. Manuylov +2 more
doaj +1 more source
Buckling of built-up columns of pultruded fiber-reinforced polymer C-sections [PDF]
, 2014 This paper presents the test results of an experimental investigation to evaluate the buckling behavior of built-up columns of pultruded profiles, subjected to axial compression.
Carlo Casalegno +8 more
core +1 more source
Compound Bifurcations in the Buckling of a Delaminated Composite Strut [PDF]
Nonlinear Dynamics, 2006 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire +2 more sources
Post-Buckling Behaviour of Steel Structures with Different Types of Imperfections
Applied Sciences, 2022 In this paper, the stability of steel members with a complex initial geometrical imperfection pattern are analysed. This issue is extremely important in the case of slender structures, characterised by multiple close critical loads and modal interactions,
Katarzyna Rzeszut
doaj +1 more source
Nonlinear Static Stability of Imperfect Bio-Inspired Helicoidal Composite Beams
Mathematics, 2022 The objective of this manuscript is to develop, for the first time, a mathematical model for the prediction of buckling, postbuckling, and nonlinear bending of imperfect bio-inspired helicoidal composite beams with nonlinear rotation angle.
Nazira Mohamed +2 more
doaj +1 more source
Nonlinear stability of thin FGM annular spherical segment in thermal environment
Vietnam Journal of Mechanics, 2015 The nonlinear stability of functionally graded material (FGM) annular spherical segment resting on elastic foundations in thermal environment is studied analytically.
Vu Thi Thuy Anh +2 more
doaj +1 more source
Developing and Investigation the Numerical Efficiency of Modified Energy Method in Solid Mechanics With Geometric Nonlinearity and Bifurcation Points [PDF]
Journal of Structural and Construction Engineering, 2021 Geometric nonlinear analyses are used in many structural problems, such as the determination of failure load, as well as the study of buckling mechanism.
Ahmad Razaghi +2 more
doaj +1 more source