Effect of Fluid–Structure Interaction on Vibration and Deflection Analysis of Generally Orthotropic Submerged Micro-plate with Crack Under Thermal Environment: An Analytical Approach

摘要: To develop a new analytical model for vibration analysis of cracked-submerged orthotropic micro-plate affected by fibre orientation and thermal environment. The proposed is based on Kirchhoff’s classical thin plate theory the size effect introduced using modified couple stress theory. Effect crack deduced appropriate compliance coefficients line spring while environment in terms in-plane moments forces. coupling shear normal stresses represented coefficient mutual influence. fluid forces associated with its inertial effects are added governing differential equation to incorporate fluid–structure interaction effect. results presented frequency response as different orientation, length, location, level submergence, temperature variation material length-scale parameter simply supported boundary condition. Furthermore, study phenomenon shifting primary resonance cracked micro-plate, relations central deflection also proposed. show that fundamental decreases presence this decrease further intensified surrounding medium present study. Another important conclusion increase reduction at 45° less when compared 0 90° both intact plates.