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https://doi.org/10.1016/S0045-7949(00)00197-8
Title: | Integration technique for evaluating confluent hypergeometric functions and its application to functionally graded materials | Authors: | Liu, G.R. Han, X. Lam, K.Y. |
Issue Date: | Apr-2001 | Citation: | Liu, G.R., Han, X., Lam, K.Y. (2001-04). Integration technique for evaluating confluent hypergeometric functions and its application to functionally graded materials. Computers and Structures 79 (10) : 1039-1047. ScholarBank@NUS Repository. https://doi.org/10.1016/S0045-7949(00)00197-8 | Abstract: | A novel numerical integral technique is proposed for evaluating confluent hypergeometric functions (CHFs), which arise from a wave propagation problem in functionally graded material (FGM). In the present method, a part of the integrand in the integral representation of the CHFs is approximated by piecewise polynomials, so that the integral can be carried out analytically in each sub-region. Using this method, the singularity of the integrand can also be dealt with easily. An error-controlled algorithm is also proposed to control the integral to a desired accuracy. The present technique is validated with existing FORTRAN routines and the MATLAB package. Furthermore, the application of this technique is presented to calculate waves propagating in FGM plate. | Source Title: | Computers and Structures | URI: | http://scholarbank.nus.edu.sg/handle/10635/60576 | ISSN: | 00457949 | DOI: | 10.1016/S0045-7949(00)00197-8 |
Appears in Collections: | Staff Publications |
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