Meiling Fan , Tao Zeng , Rina Wu , Yuhua Cui , Guodong Xu , Xiaohong Wang , Su Cheng , Jue Zhao
{"title":"带有功能分级多孔晶格核心的 3D 打印夹层结构的弯曲行为","authors":"Meiling Fan , Tao Zeng , Rina Wu , Yuhua Cui , Guodong Xu , Xiaohong Wang , Su Cheng , Jue Zhao","doi":"10.1016/j.tws.2024.112655","DOIUrl":null,"url":null,"abstract":"<div><div>A novel graded porous lattice core sandwich structure is presented to achieve a balance between lightweight and high mechanical performance for materials. An analytical model is proposed to investigate the bending responses of graded porous lattice core sandwich structures by utilizing the homogenization and dehomogenization method. A comprehensive parametric investigation on the mechanical behaviors of the graded lattice sandwich structures is conducted in order to design and optimize these materials. The precise control of porosity is implemented utilizing 3D printing techniques in this study. The theoretical results are validated by the experiments using 3D printed samples. It is found that mechanical properties can be improved through optimization of pore gradient distribution in the lattice core while maintaining a light weight of the sandwich structures. These findings offer valuable insights for designing tailored sandwich structures that are suitable for a diverse range of engineering applications.</div></div>","PeriodicalId":49435,"journal":{"name":"Thin-Walled Structures","volume":"206 ","pages":"Article 112655"},"PeriodicalIF":5.7000,"publicationDate":"2024-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Bending behaviors of 3D printed sandwich structures with functionally graded porous lattice cores\",\"authors\":\"Meiling Fan , Tao Zeng , Rina Wu , Yuhua Cui , Guodong Xu , Xiaohong Wang , Su Cheng , Jue Zhao\",\"doi\":\"10.1016/j.tws.2024.112655\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>A novel graded porous lattice core sandwich structure is presented to achieve a balance between lightweight and high mechanical performance for materials. An analytical model is proposed to investigate the bending responses of graded porous lattice core sandwich structures by utilizing the homogenization and dehomogenization method. A comprehensive parametric investigation on the mechanical behaviors of the graded lattice sandwich structures is conducted in order to design and optimize these materials. The precise control of porosity is implemented utilizing 3D printing techniques in this study. The theoretical results are validated by the experiments using 3D printed samples. It is found that mechanical properties can be improved through optimization of pore gradient distribution in the lattice core while maintaining a light weight of the sandwich structures. These findings offer valuable insights for designing tailored sandwich structures that are suitable for a diverse range of engineering applications.</div></div>\",\"PeriodicalId\":49435,\"journal\":{\"name\":\"Thin-Walled Structures\",\"volume\":\"206 \",\"pages\":\"Article 112655\"},\"PeriodicalIF\":5.7000,\"publicationDate\":\"2024-10-31\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Thin-Walled Structures\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0263823124010954\",\"RegionNum\":1,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ENGINEERING, CIVIL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Thin-Walled Structures","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0263823124010954","RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, CIVIL","Score":null,"Total":0}
Bending behaviors of 3D printed sandwich structures with functionally graded porous lattice cores
A novel graded porous lattice core sandwich structure is presented to achieve a balance between lightweight and high mechanical performance for materials. An analytical model is proposed to investigate the bending responses of graded porous lattice core sandwich structures by utilizing the homogenization and dehomogenization method. A comprehensive parametric investigation on the mechanical behaviors of the graded lattice sandwich structures is conducted in order to design and optimize these materials. The precise control of porosity is implemented utilizing 3D printing techniques in this study. The theoretical results are validated by the experiments using 3D printed samples. It is found that mechanical properties can be improved through optimization of pore gradient distribution in the lattice core while maintaining a light weight of the sandwich structures. These findings offer valuable insights for designing tailored sandwich structures that are suitable for a diverse range of engineering applications.
期刊介绍：
Thin-walled structures comprises an important and growing proportion of engineering construction with areas of application becoming increasingly diverse, ranging from aircraft, bridges, ships and oil rigs to storage vessels, industrial buildings and warehouses.
Many factors, including cost and weight economy, new materials and processes and the growth of powerful methods of analysis have contributed to this growth, and led to the need for a journal which concentrates specifically on structures in which problems arise due to the thinness of the walls. This field includes cold– formed sections, plate and shell structures, reinforced plastics structures and aluminium structures, and is of importance in many branches of engineering.
The primary criterion for consideration of papers in Thin–Walled Structures is that they must be concerned with thin–walled structures or the basic problems inherent in thin–walled structures. Provided this criterion is satisfied no restriction is placed on the type of construction, material or field of application. Papers on theory, experiment, design, etc., are published and it is expected that many papers will contain aspects of all three.
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