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基于Mohr-Coulomb准则的黏弹-塑性海冰动力学本构模型

, PP. 19-30

Keywords: 海冰动力学,本构模型,黏塑性,黏弹塑性,Mohr-Coulomb准则

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Abstract:

针对中小尺度下海冰动力作用过程中的漂移、重叠和堆积特征,在连续介质力学基础上建立了一个黏弹塑性海冰动力学本构模型.该模型主要包括四部分,即海冰在屈服前的KelvinVogit黏弹模型、海冰塑性屈服的MohrCoulomb准则、屈服后相关联的正交流动法则和影响海冰强度的静水压力.采用黏弹塑性本构模型对规则海域内的海冰堆积过程进行了数值试验,其结果与传统黏塑性模型、改进的黏塑性模型和经典冰坝理论的解析解相符,可合理地模拟海冰堆积的动力过程.为进一步检验该黏弹塑性本构模型的适用性,对渤海海冰的动力过程进行了48h的数值模拟,计算结果与海冰卫星遥感现场观测资料一致.通过与传统的黏塑性和改进的黏塑性模型结果的对比分析,进一步验证了黏弹塑性模型在中小尺度海冰动力学模拟中的可靠性.在以上海冰堆积的数值试验和渤海海冰动力学模拟中均采用了光滑质点流体动力学(SPH)方法.

References

[1]  PRITCHARD R S. An elastic-plastic constitutive law for sea ice[J]. Journal of Applied Mechanics, 1975, 42: 379-384.
[2]  SHEN H H, HIBLER W D, LEPPARANTA M. The role of floe collisions in sea ice rheology[J]. Journal of Geophysical Research,1987, 94(C10): 14 252-14 537.
[3]  HOPKINS M A. On the mesoscale interaction of lead ice and floes[J]. Journal of Geophysical Research, 1996, 101 (C8): 18 315-18 326.
[4]  HIBLER W D, SCHULSON EM. On modeling the anisotropic sea ice[J]. Journal of Geophysical Research. 2000, 105(C7): 17 105-17 120.
[5]  GUO Zhi-chang, ZHAO, J in-ping. A numerical modelling on drifting and decaying of Arctic sea ice[J]. Journal of Glaciology and Geocryology, 1998,20 (4): 330-342.
[6]  吴辉碇.海冰的动力-热力过程的数学处理[J].海洋与湖沼,1991,20(2):321-327.
[7]  吴辉碇,白珊,张占海.海冰动力学过程的数值模拟[J].海洋学报,1998,20(2):1-13.
[8]  FLATO G M, HIBLER W D. Modeling pack ice as a cavitating fluid[J]. Journal of Physical Oceanography, 1992, 22: 626-651.
[9]  刘钦政,黄嘉佑,白珊,等.全球冰-海洋耦合模式的海冰模拟[J].地学前缘.2000,7(增刊):219-230.
[10]  SHEN Hung-tao, SHEN H H, TSAIS M. Dynamic transport of river ice[J]. Journal of Hydraulic Research, 1990, 28(6): 659-671.
[11]  IP C F, HIBLER W D, FLATO G M. On the effect of the rheology on seasonal sea ice simulations[J]. Ann Glaciol, 1991, 15: 17-25.
[12]  沈洪道.冰动力学的拉格朗日离散元模式[J].海洋预报,1999,16(3):71-84.
[13]  SHEN Hung-tao, SU Jie, LIU Lian-wu. SPH simulation of river ice dynamics[J]. Journal of Computational Physics, 2000, 165: 752-770.
[14]  LUBLINER J. Plasticity Theory[M]. London: Collier Macmillan Publishers, 1990.
[15]  PARISET E, HAUSSER R, GAGNON A. Formation of ice cover and ice jams in rivers[J]. Journal of Hydraulics Division, ASCE,1996, 92(HY6): 1-24.
[16]  季顺迎,岳前进.辽东湾区域性漂移海冰的SPH数值模拟[J].水利水运工程学报,2001,4(总90):8-15.
[17]  王仁树.渤海海冰的数值试验[J].海洋学报,1984,6(4):572-580.
[18]  HIBLER W D. A dynamic thermodynamic sea ice model[J]. Journal of Geophysical Oceanography, 1979, 9: 871-846.
[19]  COON M D, MAYKUT S A, PRITCHARD R S, et al. Modeling the pack ice as an elastic plastic material[J]. AIDJEX Bull, 1974, 24:1-105.
[20]  TREMBLAY L B, MYSAK L A. Modeling sea ice as a granular material, including the dilatancy effect[J]. Journal of Physical Oceanography, 1997, 27:2 342-2 360.
[21]  COON M D, KNOKE G S, ECHERT D C, et al. The architecture of an anisotropic elastic-plastic sea ice mechanics constitutive law[J].Journal of Geophysical Research, 1998, 103(C10): 21 915-21 9252.
[22]  PRITCHARD R S. Ice conditions in an anisotropic sea ice dynamics model[J]. International Journal of Offshore and Polar Engineering,1998, 8: 9-15.
[23]  HIBLER W D. Sea ice fracturing on the large scale[J]. Engineering Fracture Mechanics, 2001, 68:2 013-2 043.
[24]  ZHANG Zhan-hai. On modeling ice dynamics of semi-enclosed seasonally ice-covered seas[B]. Report Series in Geophysics[R]. Helsinki: Finnish Institute of Marine Research, 2000.
[25]  LEPPARANTA M, HIBLER W D. The role of plastic ice interaction in marginal ice zone dynamics[J]. Journal of Geophysical Research, 1985, 90(C6): 11 899-11 909.
[26]  HUNKE E C, DUKOWICZ J K. An elastic-viscous-plastic model for sea ice dynamics[J]. Journal of Physical Oceanography, 1997, 27:1 849-1 867.
[27]  WANG Zhi-lian. A coastal sea ice model with discrete parcel method[B]. Clarkson University Internal Report: No. 99-16[R]. Dotsdam: Clarkson University, 2000. 146.
[28]  UKITA J, MORITX R E. Yield curves and flow rules of pack ice[J]. Journal of Geophysical Research, 1995, 100:4 545-4 557.
[29]  ZIMMERMANN Th. An object-oriented approach to nonlinear finite element programming[B]. LSC Internal Report[R]. Lausann:Swiss Federal Institute of Technology, 1990.
[30]  HIBLER W D, HUTCHINGS J K. Multiple equilibrium arctic ice cover states induced by ice mechanics: ice in the environment[A].Proceedings of the 16th IAHR International Symposium on the Ice[C]. Dunedin: International Associaion of Hydraulic Engineering and Research, 2002. 40-45.
[31]  LU S, SHEN Hung-tao. Constitutive laws for river ice dynamics[A]. SHEN Hung-tao. Ice in Surface Water[M]. Rotterdam: Aa Balkema, 1998. 109-116.

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