Математична модель визначення ефективних фізико-механічних характеристик перехресно армованого композитного шару
A variant of the structural 3D model to determine the elastic properties and thermal expansion of the reinforced composite layer is constructed. It is found out that the refined rotation formulas for the stiffness matrix coefficients depend both on the fiber laying angle and on Young's modulus...
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| Date: | 2018 |
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| Main Authors: | , , |
| Format: | Article |
| Language: | Ukrainian |
| Published: |
Pidstryhach Institute for Applied Problems of Mechanics and Mathematics of NAS of Ukraine
2018
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| Subjects: | |
| Online Access: | http://journals.iapmm.lviv.ua/ojs/index.php/APMM/article/view/apmm2018.16.64-73 |
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| Journal Title: | Prykladni Problemy Mekhaniky i Matematyky |
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Prykladni Problemy Mekhaniky i Matematyky| Summary: | A variant of the structural 3D model to determine the elastic properties and thermal expansion of the reinforced composite layer is constructed. It is found out that the refined rotation formulas for the stiffness matrix coefficients depend both on the fiber laying angle and on Young's modulus and products of the Poisson’s coefficients in the transverse direction. In the case of symmetric cross-reinforcement in the framework of a two-layer model the composite will be an orthotropic material for which all elastic constants are defined what allows to use them in the finite element analysis. Examples of calculations show that the 3D model displays specific effects for modern composites, in particular, large (>0,5) and negative Poisson’s ratios. Cite as: M. V. Marchuk, V. M. Kharchenko, M. M. Khomyak, “Mathematical model for determination of effective physical and mechanical characteristics of cross-reinforced composite layer,” Prykl. Probl. Mekh. Mat., Issue 16, 64–73 (2018) (in Ukrainian), http://doi.org/10.15407/apmm2018.16.64-73 |
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