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Fourier-Chebyshev spectral method for cavitation computation in nonlinear elasticity |
Liang WEI, Zhiping LI() |
LMAM & School of Mathematical Sciences, Peking University, Beijing 100871, China |
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Abstract A Fourier-Chebyshev spectral method is proposed in this paper for solving the cavitation problem in nonlinear elasticity. The interpolation error for the cavitation solution is analyzed, the elastic energy error estimate for the discrete cavitation solution is obtained, and the convergence of the method is proved. An algorithm combined a gradient type method with a damped quasi-Newton method is applied to solve the discretized nonlinear equilibrium equations. Numerical experiments show that the Fourier-Chebyshev spectral method is efficient and capable of producing accurate numerical cavitation solutions.
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Keywords
Fourier-Chebyshev spectral method
cavitation computation
nonlinear elasticity
interpolation error analysis
energy error estimate
convergence
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Corresponding Author(s):
Zhiping LI
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Issue Date: 12 January 2018
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