T. Petrova, E. Kirilova, Rayka Vladova, B. Boyadjiev, W. Becker, P. Dineva-Vladikova
{"title":"轴向载荷作用下WS2/环氧树脂/PMMA纳米复合材料中WS2薄片轴向应变分布的建模与验证","authors":"T. Petrova, E. Kirilova, Rayka Vladova, B. Boyadjiev, W. Becker, P. Dineva-Vladikova","doi":"10.24840/2183-6493_008.006_0011","DOIUrl":null,"url":null,"abstract":"In the present study, a two-dimensional stress-function method is applied to model the axial strain distribution in the tungsten disulfide (WS2) flake embedded in an epoxy/polymethyl methacrylate nanocomposite structure subjected to an axial tension load. The analytical model strain distribution along the flake is calculated and compared with experimental and shear-lag model literature data for monolayer flake at an external strain of 0.35% and 0.55%, as well as with results for few-layer flakes at an external strain of 0.55%. The comparison shows good agreement and confirms the applicability of our model method for describing strains in nanocomposite layered structures in the elastic region of applied loads. The presented method is not appropriate for few layers flake at an external strain of 0.55% because of the appearance of relaxation zone and the formation of wrinkles in the flake.","PeriodicalId":36339,"journal":{"name":"U.Porto Journal of Engineering","volume":"65 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2022-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Modelling and Validation of the Axial Strain Distribution in WS2 Flakes at WS2/Epoxy/PMMA Nanocomposite under Axial Load\",\"authors\":\"T. Petrova, E. Kirilova, Rayka Vladova, B. Boyadjiev, W. Becker, P. Dineva-Vladikova\",\"doi\":\"10.24840/2183-6493_008.006_0011\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"In the present study, a two-dimensional stress-function method is applied to model the axial strain distribution in the tungsten disulfide (WS2) flake embedded in an epoxy/polymethyl methacrylate nanocomposite structure subjected to an axial tension load. The analytical model strain distribution along the flake is calculated and compared with experimental and shear-lag model literature data for monolayer flake at an external strain of 0.35% and 0.55%, as well as with results for few-layer flakes at an external strain of 0.55%. The comparison shows good agreement and confirms the applicability of our model method for describing strains in nanocomposite layered structures in the elastic region of applied loads. The presented method is not appropriate for few layers flake at an external strain of 0.55% because of the appearance of relaxation zone and the formation of wrinkles in the flake.\",\"PeriodicalId\":36339,\"journal\":{\"name\":\"U.Porto Journal of Engineering\",\"volume\":\"65 1\",\"pages\":\"\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2022-11-28\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"U.Porto Journal of Engineering\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.24840/2183-6493_008.006_0011\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"Engineering\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"U.Porto Journal of Engineering","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.24840/2183-6493_008.006_0011","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"Engineering","Score":null,"Total":0}
Modelling and Validation of the Axial Strain Distribution in WS2 Flakes at WS2/Epoxy/PMMA Nanocomposite under Axial Load
In the present study, a two-dimensional stress-function method is applied to model the axial strain distribution in the tungsten disulfide (WS2) flake embedded in an epoxy/polymethyl methacrylate nanocomposite structure subjected to an axial tension load. The analytical model strain distribution along the flake is calculated and compared with experimental and shear-lag model literature data for monolayer flake at an external strain of 0.35% and 0.55%, as well as with results for few-layer flakes at an external strain of 0.55%. The comparison shows good agreement and confirms the applicability of our model method for describing strains in nanocomposite layered structures in the elastic region of applied loads. The presented method is not appropriate for few layers flake at an external strain of 0.55% because of the appearance of relaxation zone and the formation of wrinkles in the flake.