{"title":"Transverse compression properties of composite reinforcements","authors":"P. Kelly","doi":"10.1533/9780857093714.3.333","DOIUrl":"https://doi.org/10.1533/9780857093714.3.333","url":null,"abstract":"Abstract: This chapter discusses transverse compression, one of the dominant deformation modes arising in fibrous reinforcement materials during composites forming and manufacture. After a brief review of the experimental procedure to determine fabric compressibility, the standard compaction curve is introduced, together with associated numerical models. The chapter then discusses the distinctive inelastic properties and response of fibrous materials, including their viscoelasticity and plasticity. The concept of locked energy is introduced, and modelling strategies for its incorporation within a general thermomechanical framework of reinforcement compression is discussed. The chapter ends with a short review of current challenges within transverse compression and possible future trends.","PeriodicalId":184663,"journal":{"name":"Composite Reinforcements for Optimum Performance","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114646769","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Bending properties of reinforcements in composites","authors":"E. de Bilbao","doi":"10.1016/b978-0-12-819005-0.00012-5","DOIUrl":"https://doi.org/10.1016/b978-0-12-819005-0.00012-5","url":null,"abstract":"","PeriodicalId":184663,"journal":{"name":"Composite Reinforcements for Optimum Performance","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132264976","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Continuous models for analyzing the mechanical behavior of reinforcements in composites","authors":"Xiongqi Peng, P. China, Jian Cao","doi":"10.1533/9780857093714.4.529","DOIUrl":"https://doi.org/10.1533/9780857093714.4.529","url":null,"abstract":"Abstract: In this chapter two continuous models based on a geometric transformation approach and an energy approach, respectively, for analyzing mechanical behavior of woven fabric composites are proposed. In the geometric transformation approach, a convected coordinate system is taken to describe contravariant stresses and covariant strains. The transformations between the contravariant/covariant components and Cartesian components of the stress and strain tensors provide an approach for deriving a non-orthogonal constitutive relation. In the energy approach, a simple hyperelastic constitutive model is developed. The strain energy function is decomposed into tensile energy from fiber yarn stretches and shearing energy from yarn angular change.","PeriodicalId":184663,"journal":{"name":"Composite Reinforcements for Optimum Performance","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132936807","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Modeling the geometry of textile reinforcements for composites: TexGen","authors":"L. Brown, A. Long","doi":"10.1016/b978-0-12-819005-0.00008-3","DOIUrl":"https://doi.org/10.1016/b978-0-12-819005-0.00008-3","url":null,"abstract":"","PeriodicalId":184663,"journal":{"name":"Composite Reinforcements for Optimum Performance","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121682830","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Friction properties of reinforcements in composites","authors":"J. Gorczyca, K. Fetfatsidis, J. Sherwood","doi":"10.1533/9780857093714.3.397","DOIUrl":"https://doi.org/10.1533/9780857093714.3.397","url":null,"abstract":"Abstract: The use of binders during the forming of fabric-reinforced composites by thermostamping induces in-plane tensile forces as a result of friction between the fabric and the tooling and adjacent layers of fabric. These in-plane forces reduce the potential for the development of defects in the form of fabric wrinkling. However, if in-plane forces are too high, then fabric tearing can occur. Thus, it is critical to understand the relationship between the effective friction, the forming rate and other processing parameters to produce quality parts using this high-volume low-cost manufacturing process. This chapter summarizes recent research on the friction at the tool/fabric and fabric/fabric interfaces.","PeriodicalId":184663,"journal":{"name":"Composite Reinforcements for Optimum Performance","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134113344","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}