Nonlinear thermo-mechanical response of temperature-dependent FG sandwich nanobeams with geometric imperfection
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DOI: 10.1007/s00366-020-01005-y
Abstract: In this paper, the nonlinear dynamic response of functionally graded (FG) sandwich nanobeam associated with temperature-dependent material properties by considering the initial geometric imperfection is investigated. The size-dependent behavior of the FG sandwich nanobeam is… read more here.
Keywords: response; sandwich nanobeams; temperature dependent; geometric imperfection ... See more keywords
Porosity, mass and geometric imperfection sensitivity in coupled vibration characteristics of CNT-strengthened beams with different boundary conditions
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DOI: 10.1007/s00366-020-01208-3
Abstract: Structures face different types of imperfections and defects during the fabrication process, installation and working environment. In this paper, the imperfection effects in the coupled vibration behaviour of axially functionally graded carbon nanotube (CNT)-strengthened beam… read more here.
Keywords: porosity; boundary conditions; mass; coupled vibration ... See more keywords
Nonlinear free and forced vibrations of graphene nanoplatelet reinforced microbeams with geometrical imperfection
Sign Up to like & getrecommendations! Published in 2019 at "Microsystem Technologies"
DOI: 10.1007/s00542-018-4277-4
Abstract: Nonlinear free/forced vibration of a functionally graded graphene nanoplatelet (GNP) reinforced microbeam having geometrical imperfection which is rested on a non-linear elastic substrate have been studied in the present research. Graphene Platelets have been uniformly… read more here.
Keywords: imperfection; microbeam; nonlinear free; free forced ... See more keywords
Computation of worst geometric imperfection profiles of composite cylindrical shell panels by minimizing the non-linear buckling load
Sign Up to like & getrecommendations! Published in 2019 at "Applied Mathematical Modelling"
DOI: 10.1016/j.apm.2019.04.065
Abstract: Abstract In this article the “most unfavorable” shape of initial geometric imperfection profile for laminated cylindrical shell panel is obtained analytically by minimizing the limit point load. The partial differential equations governing the shell stability… read more here.
Keywords: non linear; imperfection; cylindrical shell; load ... See more keywords
Nonlinear dynamics of two-directional functionally graded microbeam with geometrical imperfection using unified shear deformable beam theory
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DOI: 10.1016/j.apm.2021.05.029
Abstract: Abstract In this paper, the nonlinear dynamic response of two-directional functionally graded (2D-FG) microbeam incorporating geometrically imperfect effect is investigated via a unified shear deformable beam theory, which can degenerate into several previous theories including… read more here.
Keywords: imperfection; microbeam; theory; deformable beam ... See more keywords
On the critical axial forces of upheaval buckling for imperfect submarine pipelines
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DOI: 10.1016/j.engstruct.2017.06.027
Abstract: Abstract For pipelines with vertical imperfection, upheaval buckling may occur if the axial compressive force reaches the critical axial force of upheaval buckling. The critical axial force is sensitive to the pipeline imperfection and previous… read more here.
Keywords: upheaval buckling; axial force; buckling imperfect; critical axial ... See more keywords
Dynamics behavior and imperfection sensitivity of a fluid-filled multilayered FGM cylindrical structure
Sign Up to like & getrecommendations! Published in 2020 at "International Journal of Mechanical Sciences"
DOI: 10.1016/j.ijmecsci.2020.105425
Abstract: Abstract The paper aims to investigate the transient response of an air-filled multilayer hollow functionally graded (FGM) cylinder with interlaminar bonding imperfection in the presence of load which is extensively put to use in aerospace… read more here.
Keywords: imperfection sensitivity; behavior imperfection; structure; load ... See more keywords
Imperfection sensitivity of thin-walled rectangular hollow section struts susceptible to interactive buckling
Sign Up to like & getrecommendations! Published in 2017 at "International Journal of Non-linear Mechanics"
DOI: 10.1016/j.ijnonlinmec.2017.11.004
Abstract: Abstract A variational model describing the interactive buckling of thin-walled rectangular hollow section struts with geometric imperfections is developed based on analytical techniques. A system of nonlinear differential and integral equilibrium equations is derived and… read more here.
Keywords: buckling; interactive buckling; rectangular hollow; thin walled ... See more keywords
Dynamics and stability of imperfect flexible cylinders in axial flow
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DOI: 10.1016/j.jfluidstructs.2021.103321
Abstract: Abstract This paper aims to study theoretically the effects of geometric and support imperfections on the static equilibrium and linear dynamical behaviour of a flexible cylinder in confined axial flow. The support imperfection is modelled… read more here.
Keywords: axial flow; equation; stability; support ... See more keywords
Searching for imperfection insensitive externally pressurized near-spherical thin shells
Sign Up to like & getrecommendations! Published in 2018 at "Journal of the Mechanics and Physics of Solids"
DOI: 10.1016/j.jmps.2018.06.008
Abstract: This paper studies the buckling behavior and imperfection sensitivity of geodesic and stellated shells subject to external pressure. It is shown that these structures can completely eliminate the severe imperfection sensitivity of spherical shells and… read more here.
Keywords: buckling pressure; stellated shells; spherical shells; perfect sphere ... See more keywords
Elastic thin shells with large axisymmetric imperfection: from bifurcation to snap-through buckling
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DOI: 10.1016/j.jmps.2020.103959
Abstract: Abstract Elastic thin shells are well-known for their highly unstable post-buckling, a response that exhausts their pressure bearing capacity and leads to catastrophic collapse. This paper examines elastic thin shells with a large axisymmetric imperfection… read more here.
Keywords: snap buckling; thin shells; geometry; elastic thin ... See more keywords