Results 71 to 80 of about 9,123 (264)

Buckling stability analysis of AFGM heavy columns with nonprismatic solid regular polygon cross-section and constant volume

open access: yesScience and Engineering of Composite Materials
This work presents a comprehensive analysis of buckling stability of axially functionally graded material (AFGM) heavy columns with nonprismatic solid regular polygon cross-section (RPCS) and constant volume.
Lee Byoung Koo   +3 more
doaj   +1 more source

Buckling modes and failure of test specimens from fiber-reinforced composites with a [0∘]s layup under axial compression. Theory and experiment

open access: yesУчёные записки Казанского университета: Серия Физико-математические науки
The analytical solutions for the problems of macroscale flexural-shear and purely transverse-shear buckling modes of test specimens made of fiber-reinforced composites with a [0∘]s layup (s denoting the number of laminas) were analyzed, as well as the ...
V. N. Paimushin   +4 more
doaj   +1 more source

The definition of the critical buckling load beam model and two-dimensional model of the round cylindrical shell that interact with the soil

open access: yesStructural Mechanics of Engineering Constructions and Buildings, 2019
Aims of research. The research is aimed at determining the critical buckling load at which the shell interacting with the soil loses equilibrium stability, and finding the buckling mode of the shell in the linear and nonlinear formulations of the task ...
Sergey B. Kosytsyn, Vladimir Yu. Akulich
doaj   +1 more source

Liquid Crystalline Elastomers in Soft Robotics: Assessing Promise and Limitations

open access: yesAdvanced Robotics Research, EarlyView.
Liquid crystalline elastomers (LCEs) are programmable soft materials that undergo large, anisotropic deformation in response to external stimuli. Their molecular alignment encodes directional actuation in a monolithic structure, making them long‐standing candidates for soft robotic systems.
Justin M. Speregen, Timothy J. White
wiley   +1 more source

Structural Stability and Mechanical Analysis of PVC Pipe Jacking under Axial Force

open access: yesBuildings
PVC pipe jacking is prone to cause yielding or buckling under the jacking force and may lead to engineering failure. The relationship between the buckling modes, ultimate bearing capacity, different diameter–thickness ratios, and length–diameter ratios ...
Rudong Wu   +5 more
doaj   +1 more source

A Soft Robotic Fish With a Dielectric Elastomer Actuator Body and Negative Stiffness Spine

open access: yesAdvanced Robotics Research, EarlyView.
This work introduces a bio‐mimetic soft robotic fish driven by fiber‐reinforced dielectric elastomer actuators integrated as its body. By prestretching this active skin against a flexible spine, a negative stiffness system is created, enabling large‐amplitude bending.
Markus Koenigsdorff   +4 more
wiley   +1 more source

Mode Localization in Dynamics and Buckling of Linear Imperfect Continuous Structures [PDF]

open access: yesNonlinear Dynamics, 2001
Localization phenomena in one-dimensional imperfect continuous structures is analyzed by using perturbation method (generalization of WKB method in which the spatial variable appears as a parameter). It is shown that strong localization is due to the turning points in which purely imaginary characteristic exponent assume a non zero real part.
openaire   +2 more sources

3D‐Printing Aided Rapid Prototyping of Pretensioned Tensegrity Structures for Robotic Applications

open access: yesAdvanced Robotics Research, EarlyView.
Printing, injection molding, and assembly (PMA) is a method for rapid prototyping mesoscale, topologically complex, and tensioned tensegrity structures. In combination with PMA method, two mold design strategies: modular mold and compact channel layout, enable efficiency and scalability for tensegrity fabrication.
Yi Sun   +3 more
wiley   +1 more source

Buckling analysis and optimal structural design of supercavitating vehicles using finite element technology

open access: yesInternational Journal of Naval Architecture and Ocean Engineering, 2011
The supercavitating vehicle is an underwater vehicle that is surrounded almost completely by a supercavity to reduce hydrodynamic drag substantially.
Wanil Byun   +6 more
doaj   +1 more source

Mode-Reduction Applied to Initial Post-Buckling Behavior

open access: yes, 1994
This paper presents a perturbation approach for analyzing the (initial) post-buckling behavior of elastic structures. In this perturbation a small number of buckling modes is taken into account. This approach results in a potential energy function which is defined in terms of amplitudes of the selected modes.
Schreppers, G.-J.M.A., Menken, C.M.
openaire   +2 more sources

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