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Authors
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da Rocha, J.T. ; Marczak, R.J.
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Title
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The influence of weaving patterns on the effective mechanical response of reinforced composites - a study through homogenization
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Date
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10.11.2022
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Number
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60690
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Abstract
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A study on the influence of the waving patterns on the mechanical response of textile composites is presented. Three typical weaving patterns of industrial interest are explored, as well as a case of cross-ply laminate composite. Homogenization techniques were employed, with the RVE being subjected to well-known displace- ment and periodic boundary conditions. Owing to the reduced thickness to span ratio usually found in engineering applications of textile composites, we proposed a different set of boundary conditions to disregard repetition along the transverse di- rection. All boundary conditions were verified to satisfy Hill-Mandel energy equiv- alence. The engineering constants estimated for the four composites and three sets of boundary conditions are obtained and compared through anisotropy indices and the Frobenius norm of the stiffness. The reduced constitutive tensor, used in thin plate and shell problems, is also derived from their homogenized 3D counterparts and discussed. The strain fields are also investigated for one textile, and the engi- neering constants were used in a test case to illustrate the weave pattern influence in an actual component.
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Publisher
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University of Brasilia Central Library
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Wikidata
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Citation
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University of Brasilia Central Library (2022) 76-119
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DOI
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https://doi.org/10.4322/978-65-86503-83-8.C04
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