【摘要】 考虑液体层较薄的情况下液体膜/基底间界面不平整对结构的稳定性,特别是固体薄膜稳定时的褶皱变形产生的影响。用一扰动函数模拟液体膜/基底间界面的不平整,计算固体膜受力变形前后结构能量的变化,进而分析其稳定性。取两个扰动函数的特例,具体分析了液体膜/基底间界面不平整对结构能量变化以及对结构平衡态的影响。结果表明,平衡时固体膜褶皱变形与原来假设液体膜/基底间界面为理想平整面所得的结果有很大不同。更多还原

【Abstract】 A laminar structure combined by solid film,liquid layer and rigid substrate from top to bottom was investigated.Generally,the interfaces between liquid film and rigid substrate appear as nonplanar due to the folding or roughness,furthermore,the free energy and stability of the system are remarkably disturbed.The free energy is solved with the aid of introducing a perturbation function,and the result shows that the free energy and the formed sinusoidal waves vary obviosly when the stability is strongly influenced by the nonplanar liquid layer/substrate interface.更多还原