Results 21 to 30 of about 222 (155)
Approximate postbuckling analysis of shear deformable laminates
Proceedings in Applied Mathematics and Mechanics, Volume 23, Issue 4, December 2023., 2023 Abstract In the lightweight design of aircraft, spacecraft and marine vessels, often advanced materials are utilised. Advanced materials such as laminated composites made of fibre‐reinforced plastics show transverse shear deformations if they are considered “thick” or possess little transverse shear stiffness.
Jakob Christian Schilling +1 more
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Proceedings in Applied Mathematics and Mechanics, Volume 23, Issue 3, November 2023., 2023 Abstract The local stability of unsymmetric laminated structures is significantly affected by bending‐extension coupling and the comparatively low transverse shear stiffnesses, which have to be included in the structural analysis. If such structures have flat surfaces in segments, they can be investigated with the discrete plate analysis.
Philip Schreiber, Christian Mittelstedt
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Forces in Mechanics, 2022 In this paper, the bending response of functionally graded (FG) beam using three different approaches. viz. semi-analytical, higher-order shear and normal deformation theory (HOSNT), and trigonometric shear deformation theory (TSDT) under transverse ...
Sunil Yadav +4 more
doaj +1 more source
The effect of porosity distributions on post-buckling of imperfect nanocomposite plate by TSDT
, 2022 Abstract The post-buckling behavior of a porous nanocomposite plates reinforced with carbon nanotubes (CNTs) with and without imperfection peresented. Different porosity distributions are considered, uniform and non-uniform. The elastic properties of the nanocomposite plates are determined using the Halpin-Tsai micromechanical model. Von Karman
Omid Ahmadi, Samrand Rash-Ahmadi
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Closed‐form buckling analysis of unsymmetrically laminated plates
Proceedings in Applied Mathematics and Mechanics, Volume 22, Issue 1, March 2023., 2023 Abstract The local stability of thin‐walled fibre‐reinforced plastic composite beams can be reduced to individual laminates using discrete plate theory. These individual plates receive a supporting effect from their surrounding structure, which is modelled with rotational restraints. In the present investigation, this buckling problem is described by a
Philip Schreiber, Christian Mittelstedt
wiley +1 more source
Integrating multiple dimensions of ecological stability into a vulnerability framework
Journal of Ecology, Volume 110, Issue 2, Page 374-386, February 2022., 2022 Ecological stability comprises multiple dimensions that together encapsulate how ecosystems respond to environmental change. Considering these multiple aspects of stability simultaneously often poses a problem in environmental assessments, which frequently require overarching indicators of risk or vulnerability. While an analysis of multiple dimensions
Pablo Urrutia‐Cordero +12 more
wiley +1 more source
International Journal of Aerospace Engineering, Volume 2022, Issue 1, 2022., 2022 This work numerically simulates the natural vibration response of rotating piezoelectric functionally graded (FG) beams resting on two‐parameter elastic mediums. This is a common kind of design seen in reality, such as marine engine gas turbine blades, rotating railway bridges, and helicopter rotors, where these components may be thought of as beam ...
Pham Minh Phuc +2 more
wiley +1 more source
Buckling analysis of shear‐deformable orthotropic laminated plates with rotational restraints
Proceedings in Applied Mathematics and Mechanics, Volume 21, Issue 1, December 2021., 2021 Abstract Buckling of shear‐deformable laminated plates is investigated in the present study. A closed‐form method to determine the buckling load is developed within the framework of Reddy's Third Order Shear Deformation Theory (TSDT). The considered orthotropic plates are under uniaxial compression and simply supported at all edges with rotational ...
Philip Schreiber +2 more
wiley +1 more source
Thermal Vibration of Thick FGM Circular Cylindrical Shells by Using TSDT
Materials Plus, 2022 The generalized differential quadrature (GDQ) method is used to study the thermal vibration of thick functionally graded material (FGM) circular cylindrical shells. The nonlinear coefficient effect of third-order shear deformation theory (TSDT) model of displacements on the thermal equations of motion is considered.
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The Consumption Euler Equation or the Keynesian Consumption Function?*
Oxford Bulletin of Economics and Statistics, Volume 83, Issue 1, Page 252-272, February 2021., 2021 Abstract We formulate a general cointegrated vector autoregressive (CVAR) model that nests both a class of consumption Euler equations and various Keynesian‐type consumption functions. Using likelihood‐based methods and Norwegian data, we find support for cointegration between consumption, income and wealth once a structural break around the time of ...
Pål Boug +3 more
wiley +1 more source