Results 31 to 40 of about 1,811 (217)

Nonlinear Analysis of Buckling & Postbuckling

open access: yesTransactions of the VŠB – Technical University of Ostrava, Civil Engineering Series., 2014
Abstract The stability analysis of slender web loaded in compression was presented. To solve this problem, a specialized computer program based on FEM was created. The nonlinear finite element method equations were derived from the variational principle of minimum of potential energy.
openaire   +2 more sources

A numerical investigation into the plastic buckling paradox for circular cylindrical shells under axial compression [PDF]

open access: yes, 2014
It is widely accepted that for many buckling problems of plates and shells in the plastic range the flow theory of plasticity leads to a significant overestimation of the buckling stress while the deformation theory provides much more accurate ...
GUARRACINO, FEDERICO   +7 more
core   +1 more source

Buckling and postbuckling of CNT-reinforced composite sandwich cylindrical panels subjected to axial compression in thermal environments

open access: yesVietnam Journal of Mechanics, 2019
An analytical investigation on the buckling and postbuckling behavior of carbon nanotube reinforced composite (CNTRC) sandwich cylindrical panels exposed to thermal environments and subjected to uniform axial compression is presented in this paper ...
Hoang Van Tung, Vu Thanh Long
doaj   +1 more source

Hierarchical metastructures with programmable stiffness and zero Poisson’s ratio

open access: yesAPL Materials, 2020
Exploring performance by structural design and assembly strategies, mechanical metamaterials have recently attracted attention due to their prominent mechanical properties compared with traditional structures.
Pengcheng Jiao
doaj   +1 more source

Effect of Foam Faces and Butterfly Auxetic Core on Sandwich Nanoplate Vibration and Buckling

open access: yesZAMM - Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik, Volume 106, Issue 8, August 2026.
ABSTRACT This research examines the thermomechanical vibration and buckling properties of a three‐layer sandwich nanoplate, which consists of foam face layers and a butterfly‐shaped auxetic core. The formulation is developed based on Hamilton's principle and higher‐order shear deformation theory (HSDT), utilizing an analytical Navier‐type solution to ...
Mustafa Eroğlu   +2 more
wiley   +1 more source

Simulating Postbuckling Behaviour and Collapse of Stiffened CFRP Panels [PDF]

open access: yes, 2007
Advanced composite materials are well known for their outstanding potential in weight-related stiffness and strength leading to an ever increasing share in aerospace structural components out of Carbon Fibre Reinforced Plastics (CFRP).
Rohwer, Klaus, Degenhardt, Richard
core  

Free vibration and postbuckling of laminated composite Timoshenko beams

open access: yesScience and Engineering of Composite Materials, 2016
A numerical solution method was developed to investigate the postbuckling behavior and vibrations around the buckled configurations of symmetrically and unsymmetrically laminated composite Timoshenko beams subject to different boundary conditions.
Ansari Reza   +3 more
doaj   +1 more source

Geometry Analysis of Two Photon Polymerized Microneedles—An Experimental and Simulated Approach

open access: yesJournal of Applied Polymer Science, Volume 143, Issue 22, June 10, 2026.
This research investigates the mechanical stability of hollow, two‐photon‐polymerized microneedles for drug delivery. In an experimental setup, a steel stamp gradually compresses 1000 μm‐tall microneedles while recording their force–deformation response.
Cordelia F. Wittemann   +4 more
wiley   +1 more source

Benchmark Finite Element Simulations of Postbuckling Composite Stiffened Panels [PDF]

open access: yes, 2005
This paper outlines the CRC-ACS contribution to a software code benchmarking exercise as part of the European Commission Project COCOMAT investigating composite postbuckling stiffened panels. Analysis was carried out using MSC.Nastran (Nastran) solution
Abramovich, H.   +5 more
core  

Optimum buckling design of composite stiffened panels using ant colony algorithm [PDF]

open access: yes, 2010
Optimal design of laminated composite stiffened panels of symmetric and balanced layup with different number of T-shape stiffeners is investigated and presented. The stiffened panels are simply supported and subjected to uniform biaxial compressive load.
Wang, Wei   +3 more
core   +1 more source

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