Multiscale water diffusivity prediction of plain woven composites considering void defects

To reveal the effects of void defects on the diffusivities of plain woven composites, a multiscale analysis framework considering the microscale and mesoscale voids is developed in this study. Different void modeling methods and analysis strategies are used to reveal the effects of void size, void s...

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Main Author: Wang Meng
Format: Article
Language:English
Published: De Gruyter 2024-01-01
Series:Science and Engineering of Composite Materials
Subjects:
Online Access:https://doi.org/10.1515/secm-2022-0236
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author Wang Meng
author_facet Wang Meng
author_sort Wang Meng
collection DOAJ
description To reveal the effects of void defects on the diffusivities of plain woven composites, a multiscale analysis framework considering the microscale and mesoscale voids is developed in this study. Different void modeling methods and analysis strategies are used to reveal the effects of void size, void shape, and void modeling assumptions on the equivalent diffusivities of the tows and plain woven composites. The analysis results show that the transverse or longitudinal diffusivities of tows predicted with an element-based modeling method are larger than those with void shapes considered. Considering void shape results in the variation of the predicted diffusivities. Based on the uniform assumption used for modeling the voids in the tows, the through-thickness and in-plane diffusivities are found to be dependent on the transverse and longitudinal diffusivities, respectively. Based on the element-based void modeling method for the tows, the predicted values are larger than those based on the uniform assumption. These tow void modeling methods cannot result in variation within predicted values. The effects of void shapes in the pure matrix on the diffusivities are also revealed, and the variation is observed.
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spelling doaj.art-476a873ae3b64e2fb84d2872b1c2ffab2024-02-06T09:09:14ZengDe GruyterScience and Engineering of Composite Materials2191-03592024-01-013111092591310.1515/secm-2022-0236Multiscale water diffusivity prediction of plain woven composites considering void defectsWang Meng0School of Mechanics & Civil Engineering, China University of Mining and Technology, Xuzhou, 221116, ChinaTo reveal the effects of void defects on the diffusivities of plain woven composites, a multiscale analysis framework considering the microscale and mesoscale voids is developed in this study. Different void modeling methods and analysis strategies are used to reveal the effects of void size, void shape, and void modeling assumptions on the equivalent diffusivities of the tows and plain woven composites. The analysis results show that the transverse or longitudinal diffusivities of tows predicted with an element-based modeling method are larger than those with void shapes considered. Considering void shape results in the variation of the predicted diffusivities. Based on the uniform assumption used for modeling the voids in the tows, the through-thickness and in-plane diffusivities are found to be dependent on the transverse and longitudinal diffusivities, respectively. Based on the element-based void modeling method for the tows, the predicted values are larger than those based on the uniform assumption. These tow void modeling methods cannot result in variation within predicted values. The effects of void shapes in the pure matrix on the diffusivities are also revealed, and the variation is observed.https://doi.org/10.1515/secm-2022-0236diffusivityvoidplain woven compositemultiscale method
spellingShingle Wang Meng
Multiscale water diffusivity prediction of plain woven composites considering void defects
Science and Engineering of Composite Materials
diffusivity
void
plain woven composite
multiscale method
title Multiscale water diffusivity prediction of plain woven composites considering void defects
title_full Multiscale water diffusivity prediction of plain woven composites considering void defects
title_fullStr Multiscale water diffusivity prediction of plain woven composites considering void defects
title_full_unstemmed Multiscale water diffusivity prediction of plain woven composites considering void defects
title_short Multiscale water diffusivity prediction of plain woven composites considering void defects
title_sort multiscale water diffusivity prediction of plain woven composites considering void defects
topic diffusivity
void
plain woven composite
multiscale method
url https://doi.org/10.1515/secm-2022-0236
work_keys_str_mv AT wangmeng multiscalewaterdiffusivitypredictionofplainwovencompositesconsideringvoiddefects