期刊
MATERIALS
卷 11, 期 2, 页码 -出版社
MDPI
DOI: 10.3390/ma11020294
关键词
auxetic; thermoauxetic; thermal auxeticity; anti-tetrachiral; re-entrant honeycomb; tunable material properties
类别
资金
- Ministry of Science and Higher Education in Poland [02/21/DS PB/3515/2018, 02/21/DS PB/3513/2018]
This paper presents a study of new two-dimensional composite structures with respect to their thermomechanical properties. The investigated structures are based on very well-known auxetic geometriesi.e., the anti-tetrachiral and re-entrant honeycombmodified by additional linking elements, material which is highly sensitive to changes of temperature. The study shows that temperature can be used as a control parameter to tune the value of the effective Poisson's ratio, which allows, in turn, changing its value from positive to negative, according to the temperature applied. The study shows that such thermoauxetic behavior applies both to composites with voids and those completely filled with material.
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