Affiliation:
1. Key Laboratory of Grain Information Processing and Control (Henan University of Technology), Ministry of Education, Zhengzhou 450001, P. R. China
2. College of Information Science and Engineering, Henan University of Technology, Zhengzhou 450001, P. R. China
3. Institute of Applied Physics, Henan Academy of Sciences, Zhengzhou 450001, P. R. China
Abstract
Pentamode metamaterial (PM) is an artificial solid form metamaterial with fluid characteristics. In this paper, a three-dimensional (3D) PMs based on multilayer cylindrical elements are proposed for increasing tunable structure parameters, obtaining great pentamodal property, reducing band gap frequency and decreasing connection overlap areas of elements. Compared with the PMs with double-cone elements, under the same parameters, the lower edge frequency of the single-mode band gaps can be reduced by 33.2%, the maximum value of figure of merit can be increased by 84.8% and the phononic band gaps can be reduced by 73.9%.
Funder
National Nature Science Foundations of China
Key Laboratory of Grain Information Processing and Control of Ministry of Education
High-level Talent Fund of Henan University of Technology
Science and Technology Innovative Research Team in Higher Educational Institutions of Hunan Province
Special Project for Scientific Research and Development of Henan Academy of Scienc-es
Science and Technology Opening Cooperation Project of Henan Academy of Sciences
Cultivation Program for Young Backbone Teachers in Henan University of Technology
Publisher
World Scientific Pub Co Pte Ltd
Subject
Condensed Matter Physics,Statistical and Nonlinear Physics