{"title":"周期重入蜂窝等效面外弹性特性-应变-能法及有限元建模","authors":"A. Kumar , N. Muthu , R. Ganesh Narayanan","doi":"10.1016/j.prostr.2025.08.061","DOIUrl":null,"url":null,"abstract":"<div><div>This study employs computational modelling and theoretical analysis to determine the out-of-plane elastic properties of re-entrant honeycombs. By extending the strain-energy method using Castigliano’s second theorem, a framework was developed to calculate these properties. Finite element (FE) modelling involved selecting a representative cell element (RCE) and applying periodic boundary conditions (PBC) to capture the periodic nature of the structure. The out-of-plane elastic properties derived from FE analysis closely matched with those from the strain-energy approach and were consistent with reference results. This work offers insights for designing periodic structures tailored to achieve specific mechanical properties.</div></div>","PeriodicalId":20518,"journal":{"name":"Procedia Structural Integrity","volume":"71 ","pages":"Pages 453-460"},"PeriodicalIF":0.0000,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Equivalent Out-Of-Plane Elastic Properties of Periodic Re-Entrant Honeycombs – Strain-Energy Approach and FE Modelling\",\"authors\":\"A. Kumar , N. Muthu , R. Ganesh Narayanan\",\"doi\":\"10.1016/j.prostr.2025.08.061\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>This study employs computational modelling and theoretical analysis to determine the out-of-plane elastic properties of re-entrant honeycombs. By extending the strain-energy method using Castigliano’s second theorem, a framework was developed to calculate these properties. Finite element (FE) modelling involved selecting a representative cell element (RCE) and applying periodic boundary conditions (PBC) to capture the periodic nature of the structure. The out-of-plane elastic properties derived from FE analysis closely matched with those from the strain-energy approach and were consistent with reference results. This work offers insights for designing periodic structures tailored to achieve specific mechanical properties.</div></div>\",\"PeriodicalId\":20518,\"journal\":{\"name\":\"Procedia Structural Integrity\",\"volume\":\"71 \",\"pages\":\"Pages 453-460\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2025-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Procedia Structural Integrity\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S2452321625004007\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Procedia Structural Integrity","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2452321625004007","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Equivalent Out-Of-Plane Elastic Properties of Periodic Re-Entrant Honeycombs – Strain-Energy Approach and FE Modelling
This study employs computational modelling and theoretical analysis to determine the out-of-plane elastic properties of re-entrant honeycombs. By extending the strain-energy method using Castigliano’s second theorem, a framework was developed to calculate these properties. Finite element (FE) modelling involved selecting a representative cell element (RCE) and applying periodic boundary conditions (PBC) to capture the periodic nature of the structure. The out-of-plane elastic properties derived from FE analysis closely matched with those from the strain-energy approach and were consistent with reference results. This work offers insights for designing periodic structures tailored to achieve specific mechanical properties.