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A nonlinear viscoelastic plate equation with p⃗(x,t)-Laplace operator: Blow up of solutions with negative initial energy
Nonlinear Analysis: Real World Applications ( IF 1.8 ) Pub Date : 2020-11-18 , DOI: 10.1016/j.nonrwa.2020.103240
S. Antontsev , J. Ferreira

In this paper we consider a nonlinear class viscoelastic plate equation with a lower order by perturbation of p(x,t)-Laplace operator of the form utt+Δ2uΔp(x,t)u+0tg(ts)Δu(s)dsϵΔut+f(u)=0,(x,t)QT=Ω×(0,T), associated with initial and Dirichlet–Neumann boundary conditions.

Under suitable conditions on g, f and the variable exponent of the p(x,t)-Laplace operator, we prove a blow up in finite time with negative initial energy in the presence of a strong damping ϵΔut (ϵ>0) acting in the domain. This equation corresponds to a viscoelastic version arising in dynamics of elastoplastic flows and plate vibrations.



中文翻译:

非线性粘弹性板方程 pXŤ-Laplace运算符:初始能量为负的解决方案爆炸

在本文中,我们通过扰动来考虑具有较低阶的非线性类粘弹性板方程 pXŤ-表格的拉普拉斯运算符 üŤŤ+Δ2ü-ΔpXŤü+0ŤGŤ-sΔüsds-ϵΔüŤ+Fü=0XŤŤ=Ω×0Ť 与初始和Dirichlet-Neumann边界条件相关。

在合适的条件下 G F 和变量的指数 pXŤ-拉普拉斯算子,我们证明了在强阻尼存在下具有负初始能量的有限时间内的爆炸 ϵΔüŤ ϵ>0在领域中行动。该方程对应于在弹塑性流动和板振动的动力学中产生的粘弹性形式。

更新日期:2020-11-18
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