Abstract
The purpose is to reestablish rather complete surface conservation laws for micropolar thermomechanical continua from the translation and the rotation invariances of the general balance law. The generalized energy-momentum and energy-moment of momentum tensors are presented. The concrete forms of surface conservation laws for micropolar thermomechanical continua are derived. The existing related results are naturally derived as special cases from the results proposed in this paper. The incomplete degrees of the existing surface conservation laws are clearly seen from the process of the deduction. The surface conservation laws for nonlocal micropolar thermomechanical continua may be easily obtained via localization.
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DAI Tian-min. Renewal of basic laws and principles for polar continuum theories (I)—Micromorphic continuum[J].Applied Mathematics and Mechanics (English Edition), 2003,24(10): 1119–1125.
DAI Tian-min. Renewal of basic laws and principles for polar continuum theories (II)—Micromorphic continuum theory and couple stress theory[J].Applied Mathematics and Mechanics (English Edition), 2003,24(10):1126–1133.
DAI Tian-min. Renewal of basic laws and principles for polar continuum theories (III)—Noether's theory[J].Applied Mathematics and Mechanics (English Edition), 2003,24(10):1134–1140.
Gross D.Beitrag zu den Dynamischen Problemen der Bruchmechanik [M]. Habilitationsschrift der Universitaet Stuttgart: Verlay der Universiteat Stuttgart, 1974.
Jaric J. Conservation laws of the J-integral type in micropolar elastostatics[J].Int J Engng Sci, 1978,16:967–984.
DAI Tian-min. Conservation laws and jump conditions in linear micropolar elastodynamics[J].Acta Mechanica Sinica, 1981,13(5):271–279. (in Chinese)
Fletzer D C. Conservation laws in linear elastodynamics[J].Arch Rat Mech Anal, 1976,60:329–353.
JIN Fu-sheng. The theorem of conservation of non-conservative field and the conservation laws for a certain class of continuum mechanics[J].Acta Mechanica Sinica, 1983,15(3):184–189. (in Chinese)
DAI Tian-min. Some path independent integrals for micropolar media[J].Int J Solids Struct, 1986,22(7):729–735.
Vukobrat M. Conservation laws in micropolar elastodynamics and path-independent integrals[J].Int J Engng Sci, 1989,27(9):1093–1106.
Jaric J. The energy release rate and the J-integral in nonlocal micropolar field theory[J].Int J Engng Sci, 1990,28(12):1303–1313.
DAI Tian-min. Generalized surface conservation laws for nonlocal polar thermomechanical continua[A]. In: CHIEN Wei-zang Ed.Proceedings of the 3rd International Conference on Nonlinear Mechanics[C]. Shanghai: Shanghai University Press, 1998,181–184.
Buggisch H, Gross D, Krueger K H. Einige Erhaltungssaetze der Kontinuumsmechanik vom J-Integral Typ[J].Ing Archiv, 1981,50:103–111.
Lubarda V A, Markenscoff X. Conservation laws in couple stress elasticity[J].J Mech Phys Solids, 2000,48:553–564.
Knowles J K, Sternberg E. On a class of conservation laws in linearized and finite elastostatics[J].Arch Rat Mech Anal, 1972,44:187–211.
Dluzewski P H. Finite deformations of polar elastic media[J].Int J Solids Struct, 1993,30(16): 2277–2285.
DAI Tian-min. Three systems of balance equations and jump conditions for nonlocal polar themomechanical continua[J].Science in China Ser A, 1997,41(2):211–215. (in Chinese)
Kraemer D. On the applicability of the I-integral in fracture mechanics[J].Arch Appl Mech, 1993,63:551–555.
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Contributed by DAI Tian-min, Original Member of Editorial Committee, AMM
Foundation items: the National Natural Science Foundation of China (10072024); the Research Foundation of Liaoning Education Committee (990111001)
Biography: DAI Tian-min (1931 ~)
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Tian-min, D. Renewal of basic laws and principles for polar continuum theories (IV)—Surface couservation laws. Appl Math Mech 24, 1245–1252 (2003). https://doi.org/10.1007/BF02439646
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DOI: https://doi.org/10.1007/BF02439646
Key words
- surface conservation law
- micropolar thermomechanical continuum
- generalized energy-momentum tensor
- generalized energy-moment of momentum tensor