液晶
材料科学
各向同性
弹性体
纹理(宇宙学)
平面(几何)
变形(气象学)
压力(语言学)
凝聚态物理
复合材料
化学物理
机械
光学
物理
几何学
计算机科学
数学
光电子学
语言学
哲学
图像(数学)
人工智能
作者
Haruki Tokumoto,Hao Zhou,Asaka Takebe,Kazutaka Kamitani,Ken Kojio,Atsushi Takahara,Kaushik Bhattacharya,Kenji Urayama
出处
期刊:Science Advances
[American Association for the Advancement of Science (AAAS)]
日期:2021-06-18
卷期号:7 (25)
被引量:23
标识
DOI:10.1126/sciadv.abe9495
摘要
When isotropic solids are unequally stretched in two orthogonal directions, the true stress (force per actual cross-sectional area) in the larger strain direction is typically higher than that in the smaller one. We show that thiol-acrylate liquid crystal elastomers with polydomain texture exhibit an unusual tendency: The true stresses in the two directions are always identical and governed only by the area change in the loading plane, independently of the combination of imposed strains in the two directions. This feature proves a previously unidentified state of matter that can vary its shape freely with no extra mechanical energy like liquids when deformed in the plane. The theory and simulation that explain the unique behavior are also provided. The in-plane liquid-like behavior opens doors for manifold applications, including wrinkle-free membranes and adaptable materials.
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