Kang Ji , Meng Zhao , YaoFu Zheng , AiGuo Zhao , HengAn Wu , Chuang Liu
{"title":"具有优异强度、吸能和隔振性能的可调仿生晶格超材料","authors":"Kang Ji , Meng Zhao , YaoFu Zheng , AiGuo Zhao , HengAn Wu , Chuang Liu","doi":"10.1016/j.tws.2025.113727","DOIUrl":null,"url":null,"abstract":"<div><div>In the design of lightweight lattice metamaterials, achieving a seamless integration of exceptional mechanical properties, tunability, and superior vibration isolation performance represents a significant advancement. Here, we propose two novel lattice structures inspired by the morphological architecture and biomechanical mechanisms of Chinese dogwood (Cornus kousa), which demonstrate remarkable multifunctional performance, including high strength, high energy absorption, tunable stress plateaus, controllable deformation modes, and effective vibration isolation. The results demonstrate that the Chinese dogwood-inspired lattice with rectangular beams (CDiL-RB) achieves impressive compressive strength (up to 56.14 MPa) and exceptional energy absorption (up to 32.1 J/cm³), surpassing benchmark designs. The tunability of the two lattices is enabled by geometric parameter modulation and stair-stepping design, allowing control over the number and height of stress plateaus in their stress-strain response. The modified Chinese dogwood-inspired lattice with circular tubular beams (CDiL-CTB) exhibits stable stress responses while retaining high strength (up to 76.55 MPa) and energy absorption capacity (up to 42.25 J/cm³), addressing the instability observed in the original CDiL-RB lattice. Furthermore, inspired by the natural vibration-isolation mechanisms of Chinese dogwood, a local resonance strategy is incorporated into lattice designs to enhance vibration isolation. One design achieves multiple distinct complete bandgaps across the 7.4–121.6 kHz frequency range, demonstrating effective broadband vibration isolation. The proposed lattices exhibit exceptional mechanical properties, making them ideally suited for vibration isolation structural designs.</div></div>","PeriodicalId":49435,"journal":{"name":"Thin-Walled Structures","volume":"216 ","pages":"Article 113727"},"PeriodicalIF":6.6000,"publicationDate":"2025-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Tunable bioinspired lattice metamaterials with excellent strength, energy absorption and vibration insulation\",\"authors\":\"Kang Ji , Meng Zhao , YaoFu Zheng , AiGuo Zhao , HengAn Wu , Chuang Liu\",\"doi\":\"10.1016/j.tws.2025.113727\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>In the design of lightweight lattice metamaterials, achieving a seamless integration of exceptional mechanical properties, tunability, and superior vibration isolation performance represents a significant advancement. Here, we propose two novel lattice structures inspired by the morphological architecture and biomechanical mechanisms of Chinese dogwood (Cornus kousa), which demonstrate remarkable multifunctional performance, including high strength, high energy absorption, tunable stress plateaus, controllable deformation modes, and effective vibration isolation. The results demonstrate that the Chinese dogwood-inspired lattice with rectangular beams (CDiL-RB) achieves impressive compressive strength (up to 56.14 MPa) and exceptional energy absorption (up to 32.1 J/cm³), surpassing benchmark designs. The tunability of the two lattices is enabled by geometric parameter modulation and stair-stepping design, allowing control over the number and height of stress plateaus in their stress-strain response. The modified Chinese dogwood-inspired lattice with circular tubular beams (CDiL-CTB) exhibits stable stress responses while retaining high strength (up to 76.55 MPa) and energy absorption capacity (up to 42.25 J/cm³), addressing the instability observed in the original CDiL-RB lattice. Furthermore, inspired by the natural vibration-isolation mechanisms of Chinese dogwood, a local resonance strategy is incorporated into lattice designs to enhance vibration isolation. One design achieves multiple distinct complete bandgaps across the 7.4–121.6 kHz frequency range, demonstrating effective broadband vibration isolation. The proposed lattices exhibit exceptional mechanical properties, making them ideally suited for vibration isolation structural designs.</div></div>\",\"PeriodicalId\":49435,\"journal\":{\"name\":\"Thin-Walled Structures\",\"volume\":\"216 \",\"pages\":\"Article 113727\"},\"PeriodicalIF\":6.6000,\"publicationDate\":\"2025-07-16\",\"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/S0263823125008183\",\"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/S0263823125008183","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}
Tunable bioinspired lattice metamaterials with excellent strength, energy absorption and vibration insulation
In the design of lightweight lattice metamaterials, achieving a seamless integration of exceptional mechanical properties, tunability, and superior vibration isolation performance represents a significant advancement. Here, we propose two novel lattice structures inspired by the morphological architecture and biomechanical mechanisms of Chinese dogwood (Cornus kousa), which demonstrate remarkable multifunctional performance, including high strength, high energy absorption, tunable stress plateaus, controllable deformation modes, and effective vibration isolation. The results demonstrate that the Chinese dogwood-inspired lattice with rectangular beams (CDiL-RB) achieves impressive compressive strength (up to 56.14 MPa) and exceptional energy absorption (up to 32.1 J/cm³), surpassing benchmark designs. The tunability of the two lattices is enabled by geometric parameter modulation and stair-stepping design, allowing control over the number and height of stress plateaus in their stress-strain response. The modified Chinese dogwood-inspired lattice with circular tubular beams (CDiL-CTB) exhibits stable stress responses while retaining high strength (up to 76.55 MPa) and energy absorption capacity (up to 42.25 J/cm³), addressing the instability observed in the original CDiL-RB lattice. Furthermore, inspired by the natural vibration-isolation mechanisms of Chinese dogwood, a local resonance strategy is incorporated into lattice designs to enhance vibration isolation. One design achieves multiple distinct complete bandgaps across the 7.4–121.6 kHz frequency range, demonstrating effective broadband vibration isolation. The proposed lattices exhibit exceptional mechanical properties, making them ideally suited for vibration isolation structural designs.
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.