Dynamic Saint-Venant region in a semi-infinite elastic strip |
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Authors: | Hartley T Grandin Jr Robert W Little |
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Institution: | 1. Department of Mechanical Engineering, Worcester Polytechnic Institute, Worcester, Massachusetts 2. Department of Mechanical Engineering, Michigan State University, 48823, East Lansing, Michigan 3. Department of Metallurgy, Mechanics and Materials Sciences, Michigan State University, 48823, East Lansing, Michigan
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Abstract: | This paper presents a formulation for the solution of the steady state rosponse of a semi-infinite strip with atress-free semi-infinite edges and a time-harmonie shear and normal stress applied to the end. If the end stresses form a self-equilibrated stress state, the presence or absence of a dynainic Saint-Venant region may be examined. The mathematical analysis is based on the linear equations for generalized plane stress and are solved by a biorthogonal eigenfunction expansion. The formulation is in terms of stresses and a displacement related auxiliary variable of the same differential order as the stress. Numerical solutions are presented as an indication of frequency and stress mode shape dependency. |
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