Recently, many researchers have paid great attention to numerical and experimental studies of the dynamic properties of composite plates and shells, which are widely applied in various engineering fields due to their unique characteristics.
Composite plates and shells with varying thickness are widely used in different industrial fields due to the advantages of their light weights and small dimensions. A common type of the external load such as earthquakes, wind and jet noise is random excitation and therefore, it is important to study the stochastic response of composite plates and shells.
Kwak Song Hun, a researcher at the Faculty of Mechanical Science and Technology, has proposed Meshfree Jacobi point interpolation (MJPI) formulation for the free vibration and stationary stochastic response analyses of a heated composite laminated plate with varying thickness and curvilinear fiber.
He employed the Hamilton’s principle and FSDT to establish the governing equations of heated composite laminated plates with varying thickness and curvilinear fiber. He derived the stiffness coefficients for composite laminated plates with varying thickness and curvilinear fiber, and expressed the thermal strains induced by the temperature difference by using the nonlinear part of the Green–Lagrange strain. He approximated the displacement components of plates by the proposed MJPI shape function. He achieved boundary conditions by three linear springs and two rotational springs distributed along the edges of plates.
He has verified the accuracy and reliability of the proposed method through the comparisons with those from available literature and finite element software.
For more information, please refer to his paper “Free vibration and stationary stochastic response analyses of heated composite laminated plate with varying thickness and curvilinear fiber using a meshfree method” in “Acta Mechanica” (SCI).
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