Results 21 to 30 of about 12,461 (290)

On the method of calculation of buckling and post-buckling behavior of laminated shells with small arbitrary imperfections [PDF]

open access: yesActa Scientiarum Polonorum. Architectura, 2021
In the present paper the variant of computational methods of stability and initial post-buckling behavior of isotropic shells was generalized with respect to laminated composite shells. Using methods of the asymptotic analysis of the Timoshenko–Mindlin
Mykola Semenyuk   +2 more
doaj   +1 more source

Bio-Inspired Micro-Fin-Assisted Multi-Modal Vascular Intervention. [PDF]

open access: yesAdv Sci (Weinh)
A magnetic guidewire with a micro‐fin–integrated tip is introduced for multimodal cardiovascular navigation. The micro‐fins exploit fluid drag to augment magnetic torque, enabling bifurcation traversal at 15 mT, tolerating 45° misalignment, bidirectional crawling, and buckle self‐correction.
Liu X   +8 more
europepmc   +2 more sources

Quasi-bifurcation and Imperfection-sensitivity of Cylindrical ‎Shells under Pressures due to an Explosion [PDF]

open access: yesJournal of Applied and Computational Mechanics, 2021
The static and dynamic behavior of a horizontal cylindrical shell (as used to store fuels in tanks) is investigated in this work by means of computational modeling.
Mariano Ameijeiras, Luis Godoy
doaj   +1 more source

Nonlinear Instability Behavior and Buckling of Shallow Arches Under Gradient Thermo-Mechanical Loads

open access: yesFrontiers in Materials, 2022
This paper investigates the nonlinear behavior and buckling of shallow arches under gradient thermal and mechanical loading. The gradient temperature varies continuously along the thickness of the cross section of the arch but uniformly distributes over ...
Rui Rao   +4 more
doaj   +1 more source

Nonlinear buckling analysis of tower crane structure based on movable boundaries

open access: yesAdvances in Mechanical Engineering, 2022
The tower crane is a typical soaring and complex frame structure, and buckling is an important factor affecting its safety and carrying capacity. Considering the special characteristics of the boundary conditions for the boom structure, a numerical ...
Jinpeng Gu   +6 more
doaj   +1 more source

INFLUENCE OF BUCKLING FORMS INTERACTION ON STIFFENED PLATE BEARING CAPACITY

open access: yesInternational Journal for Computational Civil and Structural Engineering, 2020
The work is devoted to studying the influence of initial geometric imperfections on a value of the peak load for the compressed stiffened plate with the two-fold buckling load.
Gaik Manuylov   +2 more
doaj   +1 more source

Analysis of multiple bifurcation behavior for periodic structures

open access: yesArchives of Mechanics, 2020
The classification of simple singularities in the post-buckling analysis of truss structures is well-known for elastic stability. To focus on multiple singularities including a hilltop bifurcation point (h-BP) and its bifurcation paths, we reviewed the ...
I. Ario, M. Nakazawa
doaj   +1 more source

Geometrically nonlinear analysis of the stability of the stiffened plate taking into account the interaction of eigenforms of buckling

open access: yesStructural Mechanics of Engineering Constructions and Buildings, 2021
The aims of this work are a detailed consideration in a geometrically nonlinear formulation of the stages of the equilibrium behavior of a compressed stiffened plate, taking into account the interaction of the general form of buckling and local forms of ...
Gaik A. Manuylov   +2 more
doaj   +1 more source

Non-bifurcation behavior of laminated composite plates under in-plane compression [PDF]

open access: yesBulletin of the Polish Academy of Sciences: Technical Sciences
The paper deals with bifurcation and/or non-bifurcation post-buckling curves of composite plates under biaxial compression. For different lay-up sequences, a coupling, i.e. extension-bending (EB) is considered. The current investigations present distinct
Mehdi Bohlooly Fotovat, Tomasz Kubiak
doaj   +1 more source

Buckling problems of thin elastic shells [PDF]

open access: yesКомпьютерные 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

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