论文标题
光反应列弹性体的模型
Model for Photoresponsive Nematic Elastomers
论文作者
论文摘要
我们研究了连续理论中光反应列弹性色体丝带的平衡，该理论基于Corbett和Warner提出的统计力学模型。 Rev. E 78，061701（2008）]。我们证明，照明引起的自发变形并非单调取决于强度$ i $。丝带的挠度首先随着预期的$ i $的增加而增加，但随后降低并突然以关键值$ i_ \ mathrm {e} $ $ i $的关键值停止。 $ i_ \ mathrm {e} $，它封闭在磁滞回路内，标志着一阶形状过渡。最后，我们发现色带长度的临界值仅取决于材料中的交联程度，在该材料下，无论光线在其上有多么强烈，都无法在色带中诱导挠度。
We study the equilibria of a photoresponsive nematic elastomer ribbon within a continuum theory that builds upon the statistical mechanics model put forward by Corbett and Warner [Phys. Rev. E 78, 061701 (2008)]. We prove that the spontaneous deformation induced by illumination is not monotonically dependent on the intensity $I$. The ribbon's deflection first increases with increasing $I$, as expected, but then decreases and abruptly ceases altogether at a critical value $I_\mathrm{e}$ of $I$. $I_\mathrm{e}$, which is enclosed within a hysteresis loop, marks a first-order shape transition. Finally, we find that there is a critical value of the ribbon's length, depending only on the degree of cross-linking in the material, below which no deflection can be induced in the ribbon, no matter how intense is the light shone on it.
