２つのスケーリング指数を用いた二軸引張下での膨潤誘起不安定の解析

抄録

We analyze the swelling-induced instability of swollen elastomer under biaxial extension using two scaling exponents. Two scaling exponents are introduced to extend the Flory-Rehner free energy function, and are adjusted based on the previous study. Results show that swelling-induced strain softening is apt to occur under equibiaxial extension compared to uniaxial extension. The additional tensile stress in a lateral direction enables it to occur in relatively poor solvents, and accelerates the onset point.