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International Journal for Multiscale Computational Engineering

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ISSN Печать: 1543-1649

ISSN Онлайн: 1940-4352

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A Multiscale Framework for Analyzing Thermo-Viscoelastic Behavior of Fiber Metal Laminates

Том 7, Выпуск 4, 2009, pp. 351-370
DOI: 10.1615/IntJMultCompEng.v7.i4.80
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Краткое описание

Fiber metal laminate (FML) is a multilayered composite system that consists of alternate layers of metal and fiber-reinforced polymers. These composite systems can exhibit timedependent behavior due to the time-dependent responses in one or more of their constituents. The time-dependent behavior is further intensified under the influence of high temperatures and stress levels, resulting in a nonlinear stress- and temperature-dependent viscoelastic response. A multiscale framework is formulated to predict the overall nonlinear time-dependent response of the FML by integrating different constitutive material models of the constituents. The multiscale framework includes a micromechanical model for ply level homogenization. The upper (structural) level uses a layered composite finite element (FE) with multiple integration points through the thickness. The micromodel is implemented at these integration points. It is also possible to develop a sublaminate model for a laminate-level homogenization and integrate it into continuum 3D or shell elements within the FE code. Thermoviscoelastic constitutive models of homogenous orthotropic materials are used at the lowest constituent level, that is, fiber, matrix, and metal. The nonlinear and time-dependent response of the constituents requires the use of suitable correction algorithms (iterations) at various levels of the framework.

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ЦИТИРОВАНО В
  1. Hanten L., Giunta G., Belouettar S., Salnikov V., Free Vibration Analysis of Fibre-Metal Laminated Beams via Hierarchical One-Dimensional Models, Mathematical Problems in Engineering, 2018, 2018. Crossref

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  3. Buryachenko Valeriy A., Effective Properties and Energy Methods in Thermoelasticity and Thermoelectroelasticity of Composites, in Local and Nonlocal Micromechanics of Heterogeneous Materials, 2022. Crossref

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