Abstract
By the analysis for the vectors of a wave field in the cylindrical coordinate and Sommerfeld’s identity as well as Green’s functions of Stokes’ solution pertaining the conventional elastic dynamic equation, the results of Green’s function in an infinite space of an axisymmetric coordinate are shown in this paper. After employing a supplementary influence field and the boundary conditions in the free surface of a semi-space, the authors obtain the solutions of Green’s function for Lamb’s dynamic problem. Besides, the vertical displacement u zz and the radial displacement u rz can match Lamb’s previous results, and the solutions of the linear expansion source u rr and the linear torsional source u θθ are also given in the paper. The authors reveal that Green’s function of Stokes’ solution in the semi-space is a comprehensive form of solution expressing the dynamic Lamb’s problem for various situations. It may benefit the investigation of deepening and development of Lamb’s problems and solution for pertinent dynamic problems conveniently.
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References
Lamb, H. On the propagation of tremors over the surface of an elastic solid. Philosophical Transactions of the Royal Society, 203, 1–42 (1904)
Erigen, A. C. and Suhubi, E. S. Elastic Dynamics Linear Theory, Academic Press, New York (1975)
Pekeris, C. L. The seismic surface pulse. Proceedings of the National Academy of Sciences of the United States of America, 41(7) 469–480 (1955)
Wang, Y. S. Exact solution for the dynamic vertical surface displacement of the elastic half-space under vertical harmonic point load. Acta Mechanica Sinica, 12(4) 386–391 (1980)
Paul, S. On the displacement produced in a porous elastic half-space by an impulsive line load (non-dissipative case). Pure and Applied Geophysics, 114(4) 605–614 (1976)
Paul, S. On the disturbance produced in a semi-infinite poroelastic medium by a surface load. Pure and Applied Geophysics, 114(4) 615–627 (1976)
Reissner, E. Freie und erzwungene torsionss-chwingungen des elastischen halbraumes. Journal of Applied Physics, 8, 229–245 (1937)
Reissner, E. and Sagoci, H. F. Forced torsional oscillations of an elastic half-space. Journal of Applied Physics, 15(9) 652–662 (1944)
Bycroft, G. N. Forced vibrations of a rigid circular plate on a semi-infinite elastic space and on an elastic stratum. Philosophical Transactions of the Royal Society, 248, 327–368 (1956)
Rahman, M. The Reissner-Sagoci problem for a half-space under buried torsional forces. International Journal of Solid and Structures, 37, 1119–1132 (1998)
Kontoni, D. P. N., Beskos, D. E., and Manolis, G. D. Uniform half-plane elastic-dynamic problems by an approximate boundary element method. Soil Dynamics and Earthquake Engineering, 6(4) 227–238 (1987)
Manolis, G. D. Elastic wave scattering around cavities in inhomogeneous continua by the BEM. Journal of Sound and Vibration, 266(2) 281–305 (2003)
Dominguez, J. and Abascal, R. Dynamics of Foundations in Topics in Boundary Element Research, Springer-Verlag, Berlin (1987)
Padro, L. A., Azna, J. J., and Maeso, O. BEM-FEM coupling model for the dynamic analysis of piles and pile groups. Engineering Analysis with Boundary Elements, 31(6) 473–484 (2007)
Ding, B. Y., Ding, C. H., and Meng, F. L. The Green function on two-phase saturated medium by concentrated force (in Chinese). Acta Mechanica Sinica, 33(2) 234–241 (2001)
Ding, B. Y., Meng, F. L., and Hu, M. Y. The source vector and static displacement field by elastic dislocation on the two-phase saturated medium. Acta Seismologica Sinica, 23(3) 239–245 (2001)
Ding, B. Y., Song, X. C., and Yuan, J. H. Solution for displacement response of saturated soil by a concentrated load in tunnel of rectangular section. Engineering Mechanics, 26(6) 153–157 (2009)
Ding, B. Y., Dang, G. H., and Yuan, J. H. Green function of the saturated soil tunnel concentrated loads calculation of vibration displacement response. Journal of Vibration and Shock, 28(11) 110–114 (2009)
Ding, B. Y., Fan, L. B., and Wu, J. H. The Green function and wave field on two-phase saturated medium by concentrated force. Chinese Journal of Geophysical, 42(6) 800–808 (1999)
Ding, B. Y., Ding, C. H., Chen, Y., and Tao, H. B. Green function on two-phase saturated medium by concentrated force in two-dimensional displacement field. Applied Mathematics and Mechanics (English Edition) 25(8) 951–956 (2004) DOI 10.1007/BF02438804
Ding, B. Y., Yuan, J. H., and Pan, X. D. The abstracted and integrated Green functions and OPP of BEM in soil dynamics. Science in China, Series G, 39(2) 284–292 (2009)
Zheng, P., Ding, B. Y., Zhao, S. X., and Ding, D. Dynamic response of a multilayered poroelastic half-space to harmonic surface tractions. Transport in Porous Media, 98(21) 229–249 (2013)
Ding, B. Y. and Yuan, J. H. Dynamic Green’s functions of a two-phase saturated medium subjected to concentrated force. International Journal of Solids and Structures, 48, 2288–2303 (2011)
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Project supported by the National Natural Science Foundation of China (No. 11172268)
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Ding, By., Xu, T., Chen, J. et al. Comprehensive form of solution for Lamb’s dynamic problem expressed by Green’s functions. Appl. Math. Mech.-Engl. Ed. 34, 1543–1552 (2013). https://doi.org/10.1007/s10483-013-1766-8
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DOI: https://doi.org/10.1007/s10483-013-1766-8