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- W2602603721 abstract "Ultrasonic guided waves propagating along large structures have great potential as a nondestructive evaluation method. In this context, it is very important to obtain the dispersion curves, which depend on the cross-section of the structure. In this paper, we compute dispersion curves along infinite isotropic plate-like structures using the semi-analytical method (SAFEM) with an isogeometric approach based on B-spline functions. The SAFEM method leads to a family of generalized eigenvalue problems depending on the wave number. For a prescribed wave number, the solution of this problem consists of the nodal displacement vector and the frequency of the guided wave. In this work, the results obtained with B-splines shape functions are compared to the numerical SAFEM solution with quadratic Lagrange shape functions. Advantages of the isogeometric approach are highlighted and include the smoothness of the displacement field components and the computational cost of solving the corresponding generalized eigenval..." @default.
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- W2602603721 date "2017-03-31" @default.
- W2602603721 modified "2023-09-27" @default.
- W2602603721 title "Numerical Solution of a Wave Propagation Problem Along Plate Structures Based on the Isogeometric Approach" @default.
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- W2602603721 doi "https://doi.org/10.1142/s0218396x17500308" @default.
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