An efficient mixed variational reduced order model formulation for non-linear analyses of elastic shells [PDF]
, 2017 The Koiter-Newton method had recently demonstrated a superior performance for non-linear analyses of structures, compared to traditional path-following strategies.
Garcea, G. +4 more
core +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
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
Catastrophe Models for Cognitive Workload and Fatigue [PDF]
, 2010 We reconceptualised several problems concerning the measurement of cognitive workload – fixed versus variable limits on channel capacity, work volume versus time pressure, adaptive strategies, resources demanded by tasks when performed simultaneously ...
Boeh, Henry +3 more
core +2 more sources
Bulletin of Odessa State Academy of Civil Engineering and Architecture, 2021 The process of deformation and buckling of shallow thin-walled elastic conical shells has been investigated for the case of significantly non-uniform stress-strain state due to the action of wind load based on improved model of pressure application ...
Y. Bessmertnyi, V. Krasovsky
semanticscholar +1 more source
Elastocapillary instability under partial wetting conditions: bending versus buckling [PDF]
, 2011 The elastocapillary instability of a flexible plate plunged in a liquid bath is analysed theoretically. We show that the plate can bend due to two separate destabilizing mechanisms, when the liquid is partially wetting the solid.
Andreotti, Bruno +3 more
core +4 more sources
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
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
International Journal of Solids and Structures, 2020 For the investigation of the initial post-buckling of a column built in at one end, clamped in rotation with a flexible support at the other, the stability of the bifurcation point is studied using the Fourier series.
Zhao Yan-ping, Li Lin, Jin Ming
semanticscholar +1 more source
Bifurcation scenarios in helical buckling of slender rods using new FE
, 2020 We develop a new Finite Element to accurately model twisting of rods and capture the bifurcation scenarios leading to helical buckling and various further post-buckling states.
M. Kapitaniak, V. Vaziri, M. Wiercigroch
semanticscholar +1 more source