{"title":"Modeling of Porosity Effects in Gas-Filled Composites Using Biot’s Parameter","authors":"N. Salamon, R. Ganesan","doi":"10.1115/imece1996-0467","DOIUrl":null,"url":null,"abstract":"\n Modeling of porosity effects on the thermal-chemical decomposition of porous, polymer composites at high temperature is treated analytically for no gas flow and compared with finite element results which permit gas flow. A function is proposed for the variation of Biot’s pressure-stress coupling factor in terms of porosity and a constant which can be determined from experiments. The results show this function adequately describes the coupling factor and that the inclusion of gas flow (permeability) is essential to accurate results.","PeriodicalId":326220,"journal":{"name":"Aerospace and Materials","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"1996-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Aerospace and Materials","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1115/imece1996-0467","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
Modeling of porosity effects on the thermal-chemical decomposition of porous, polymer composites at high temperature is treated analytically for no gas flow and compared with finite element results which permit gas flow. A function is proposed for the variation of Biot’s pressure-stress coupling factor in terms of porosity and a constant which can be determined from experiments. The results show this function adequately describes the coupling factor and that the inclusion of gas flow (permeability) is essential to accurate results.
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