Programmable Materials最新文献

Programmable polymers with shape memory for biomedical applications 生物医学应用中具有形状记忆的可编程聚合物

Programmable Materials Pub Date : 2023-01-01 DOI: 10.1017/pma.2023.2

Kaojin Wang, Limin Man, Meng Zhang, Yong-Guang Jia, X. X. Zhu

引用次数: 1

Dual-tunable phononic waveguides for manipulation of guided Lamb waves 操纵引导兰姆波的双可调谐声子波导

Programmable Materials Pub Date : 2023-01-01 DOI: 10.1017/pma.2023.10

Wei Guo, Yu-Ke Ma, Yan-Feng Wang, Vincent Laude, Yue-Sheng Wang

引用次数: 0

Architecting materials for extremal stiffness, yield, and buckling strength 建筑材料的极限刚度，屈服和屈曲强度

Programmable Materials Pub Date : 2023-01-01 DOI: 10.1017/pma.2023.5

Fengwen Wang, Ole Sigmund

{"title":"Architecting materials for extremal stiffness, yield, and buckling strength","authors":"Fengwen Wang, Ole Sigmund","doi":"10.1017/pma.2023.5","DOIUrl":"https://doi.org/10.1017/pma.2023.5","url":null,"abstract":"Abstract This paper proposes a methodology for architecting microstructures with extremal stiffness, yield, and buckling strength using topology optimisation. The optimised microstructures reveal an interesting transition from simple lattice-like structures for yield-dominated situations to hierarchical lattice structures for buckling-dominated situations. The transition from simple to hierarchical is governed by the relative yield strength of the constituent base material as well as the volume fraction. The overall performances of the optimised microstructures indicate that maximum strength is determined by the buckling strength at low-volume fractions and yield strength at higher-volume fractions, regardless of the base material’s relative yield strength. The non-normalised properties of the optimised microstructures show that higher base material Young’s modulus leads to both higher Young’s modulus and strength of the architected microstructures. Furthermore, the polynomial order of the maximum strength lines with respect to mass density obtained from the optimised microstructures reduces as base material relative yield strength decreases, reducing from 2.3 for buckling-dominated thermoplastic polyurethane to 1 for yield-dominated steel microstructures.","PeriodicalId":168016,"journal":{"name":"Programmable Materials","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136297930","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}

引用次数: 3

Design framework for programmable mechanical metamaterial with unconventional damping properties under dynamic loading conditions 动态加载条件下具有非常规阻尼特性的可编程机械超材料设计框架

Programmable Materials Pub Date : 1900-01-01 DOI: 10.1017/pma.2022.1

W. Kaal, Michael M. Becker, Marius Specht, Sarah C. L. Fischer

{"title":"Design framework for programmable mechanical metamaterial with unconventional damping properties under dynamic loading conditions","authors":"W. Kaal, Michael M. Becker, Marius Specht, Sarah C. L. Fischer","doi":"10.1017/pma.2022.1","DOIUrl":"https://doi.org/10.1017/pma.2022.1","url":null,"abstract":"\u0000 A theoretical and experimental framework for novel metamaterial with programmable damping properties is presented. This material system is able to switch between elastic-dominated and damping-dominated regimes with different overall stiffness under dynamic loading depending on the external stimulus. The unit cell combines an auxetic and a bellow-like layer separated by an interface through which the amount of media flow can be tuned depending on the lateral strain. A simplified analytical model is derived to analyse the programmable damping effect. The model is further extended with a fluid-dynamics approach to link the effective damping properties with geometrical parameters to aid with the practical design of the metamaterial. Afterward, experiments are conducted on a macroscopic level using laser-sintered unit cells to validate the functionality of the concept both with air and water as media within the unit cells. To conclude the work, initial results on microscopic-level unit cells fabricated by two-photon lithography are introduced to showcase the scalability of the concept. This work provides an experimentally validated theoretical framework for future investigations to design unit cells with programmable damping on different length scales for applications requiring tailored dynamic energy dissipation.","PeriodicalId":168016,"journal":{"name":"Programmable Materials","volume":"77 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":"115992923","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}

引用次数: 0

Programmable Materials 可编程的材料

Programmable Materials Pub Date : 1900-01-01 DOI: 10.1017/pma.2023.3

引用次数: 0

Programmable metamaterials 可编程的超材料

Programmable Materials Pub Date : 1900-01-01 DOI: 10.1017/pma.2023.1

R. Wu, L. Wu, S. He, Shuo Liu, T. Cui

{"title":"Programmable metamaterials","authors":"R. Wu, L. Wu, S. He, Shuo Liu, T. Cui","doi":"10.1017/pma.2023.1","DOIUrl":"https://doi.org/10.1017/pma.2023.1","url":null,"abstract":"\u0000 As a major approach for controlling electromagnetic (EM) waves, metamaterials have experienced an abundant and rapid development in the 21st century. They have provided flexible and powerful techniques for controlling EM waves and brought many unique applications that are difficult to realise with natural materials. With increasing demands on dynamic controls of the EM waves, many innovations have been conducted in both three-dimensional metamaterials and two-dimensional metasurfaces, in which the meta-atom has been gradually evolved from passive to active. In 2014, coding and digital mechanisms were initially introduced to the metamaterials, further advancing the appearance of digitally programmable metamaterials. The programmable metamaterials have shown great potentials in not only real-time manipulations of the EM waves, but also direct information processing on the EM wave level. In this article, we present an in-depth review of the programmable EM metamaterials and metasurfaces, focusing on the programmable features including theoretical concepts, implementing methods and applications in EM controls. We first give a short retrospect of traditional metamaterials and metasurfaces, followed by the concepts and detailed discussions of digital coding and field-programmable metamaterials. Then, we introduce space-domain, time-domain and space–time-domain programmable metamaterials and metasurfaces, mainly focusing on their theories, functionalities, experimental implementations, and system-level applications. Finally, we conclude the current advances of the programmable metamaterials and metasurfaces, and give a prospect for the future developments.","PeriodicalId":168016,"journal":{"name":"Programmable Materials","volume":"25 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":"129210729","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}

引用次数: 1

Stabilise and symmetrise the deformation of buckling metamaterial for tunable vibration bandgaps 在可调振动带隙中稳定和对称屈曲材料的变形

Programmable Materials Pub Date : 1900-01-01 DOI: 10.1017/pma.2023.4

Encai Liu, X. Fang, Peidong Zhu, Jihong Wen

引用次数: 0

AROMA: Anionic ring-opening monomer addition of allyl glycidyl ether to methoxy poly(ethylene glycol) for the synthesis of sequence-controlled polymers 芳香:阴离子开环单体在甲氧基聚乙二醇上加成烯丙基甘油醚，用于合成序列控制聚合物

Programmable Materials Pub Date : 1900-01-01 DOI: 10.1017/pma.2023.7

S. Schneider, Benedikt L. Schwalm, P. Théato

引用次数: 0

Programmable active matter across scales 跨尺度可编程活性物质

Programmable Materials Pub Date : 1900-01-01 DOI: 10.1017/pma.2023.6

Hengao Yu, Yulei Fu, Xinli Zhang, Leilei Chen, Duo Qi, Jinzhuo Shi, Wendong Wang

引用次数: 1

Liquid crystal elastomer actuators and sensors: Glimpses of the past, the present and perhaps the future 液晶弹性体致动器和传感器:对过去、现在和未来的一瞥

Programmable Materials Pub Date : 1900-01-01 DOI: 10.1017/pma.2023.8

J. Lagerwall

{"title":"Liquid crystal elastomer actuators and sensors: Glimpses of the past, the present and perhaps the future","authors":"J. Lagerwall","doi":"10.1017/pma.2023.8","DOIUrl":"https://doi.org/10.1017/pma.2023.8","url":null,"abstract":"\u0000 Liquid crystal elastomers (LCEs) are programmable materials par excellence. I review the history and state of the art of LCE materials and processing development from the perspective of the important remaining step of moving out of the academic research lab and applying LCEs as soft actuators or strain sensors. After a brief introduction for the non-expert of what LCEs are and which their main advantages and limitations are, I discuss the key breakthroughs that LCE research has undergone over its 50-year history. Building on this and drawing from fresh results from on-going research, I consider possible future development trajectories that would help address the outstanding key obstacles to reach mass production at competitive cost. I end with discussing a selected set of application scenarios with good opportunities for LCEs to perform functions that no other material could deliver. Specifically, I focus on responsive buildings incorporating LCE actuator fibres and sheets/ribbons, structural health monitoring with LCE strain sensors monitoring crack growth and propagation or alerting residents of buildings exposed to dangerous levels of deformation, and kinetic and responsive garments incorporating LCE fibre actuators and/or strain sensors.","PeriodicalId":168016,"journal":{"name":"Programmable Materials","volume":"1 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":"129337595","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}

引用次数: 1