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This article presents a study on the free vibration of non-homogeneous rectangular membranes with arbitrary interfaces, utilizing a direct variational method with two approaches: trigonometric and power series. The authors demonstrate that the analogy between membranes and plates does not hold in this scenario and provide a detailed mathematical framework for solving the problem. Numerical examples illustrate the effectiveness of the proposed methodologies, showing low computational costs and excellent agre

Author

nanjappa hebbale

Language

EN