黏弹性核组合夹芯梁的振动和热皱折

对由聚合物面层与黏弹性核构成的夹芯梁的振动和热皱折性能进行了研究。比较了夹芯板和夹芯梁的单元。将每个组合层视为一个等价的单层,假定了稳定的温度区域。公式是一个解耦的热力学公式,首先计算了梁的区域和温度,然后用于进一步的计算。研究了纤维角度、比率以及核芯厚度对单元性能的作用。研究显示,对某些纤维角度,梁单元和板单元的预测结果有很大不同。

Vibration and Thermal Buckling of Composite Sandwich Beams with Viscoelastic Core

The paper deals with the vibration and thermal buckling behavior of sandwich beams with composite facings and viscoelastic core. Sandwich plate and beam elements are compared in this context. Each composite laminate is modeled as an equivalent single layer. Steady state temperature field is assumed. The formulation is a decoupled thermo mechanical formulation where in the temperatures in the domain of the beam are calculated first and made use in further calculations. The effect of fiber angle, the effect o...