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Based on both the error estimates of moving least-square approximation in the Sobolev space Wk,p(Ω) and the continuity and coercion of the bi-linearity in the weak form of the elasticity, the error analysis of element-free Galerkin method for elasticity is discussed in this paper, the relationship between the error and the radius of the weight function is given, and the theorem of the error estimate presented. The error estimate proves to be of optimal order when nodes and shape functions satisfy some conditions. From the error analysis, it is shown that the error bound of the elasticity is directly related to the radius of the weight function. And a numerical example is given to verify the correctness of the given results.
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Keywords:
- meshless method /
- element-free Galerkin method /
- elasticity /
- error estimate
[1] Belytschko T, Krongauz Y 1996 Computer Methods in Applied Mechanics and Engineering 139 3
[2] Cheng R J, Ge H X 2009 Chin. Phys. B 18 4059
[3] Wang J F, Sun F X, Cheng R J 2010 Chin. Phys. B 19 1
[4] Cheng R J, Cheng Y M 2008 Acta Phys. Sin. 57 6037 (in Chinese)[程荣军、程玉民 2008 57 6037]
[5] Cheng R J, Cheng Y M 2007 Acta Phys. Sin. 56 5569 (in Chinese)[程荣军、程玉民 2007 56 5569]
[6] Liu W K, Jun S, Zhang Y F 1995 International Journal for Numerical Methods in Engineering 20 1081 Cheng R J, Ge H X 2010 Chin. Phys. B 19 090201 Duarte C A, Oden J T 1996 Computer Methods in Applied Mechanics and Engineering 139 237
[7] Onate E, Idelsohn S, Zienkiewicz O C 1996 International Journal for Numerical Methods in Engineering 39 3839
[8] Atluri S N, Zhu T 1998 Computational Mechanics 22 117
[9] Aluru N R 2000 International Journal for Numerical Methods in Engineering 47 1083
[10] Liu W K, Chen Y J 1995 International Journal for Numerical Methods in Fluids 21 901
[11] Idelsohn S R, Onate E, Calvo N 2003 International Journal for Numerical Methods in Engineering 58 893
[12] Cheng Y M, Peng M J, Li J H 2005 Acta Mechanica Sinica 37 719 (in Chinese)[程玉民、彭妙娟、李九红2005 力学学报 37 719] Cheng Y M, Li J H 2005 Acta Phys. Sin. 54 4463 (in Chinese)[程玉民、李九红 2005 54 4463]
[13] Chen L, Cheng Y M 2010 Chin. Phys. B 19 090202
[14] Chen L, Cheng Y M 2008 Acta Phys. Sin. 57 1 (in Chinese) [陈 丽、程玉民 2008 57 1]
[15] Chen L, Cheng Y M 2008 Acta Phys. Sin. 57 6047(in Chinese) [陈 丽、程玉民 2008 57 6047]
[16] Peng M J, Cheng Y M 2009 Engineering Analysis with Boundary Elements 23 77
[17] Zhu T, Zhang J D, Atluri S N 1998 Computational Mechanics 21 223
[18] Kothnur V S, Mukherjee S, Mukherjee Y X 1999 International Journal of Solids and Structures 36 1129
[19] Cheng Y M, Cheng M J 2003 Acta Mechanica Sinica 35 181 (in Chinese)) [程玉民、陈美娟 2003 力学学报 35 181] Cheng Y M, Peng M J 2005 Science in China 35 435 (in Chinese) [程玉民、彭妙娟 2005 中国科学 35 435] Qin Y X, Cheng Y M 2006 Acta Phys. Sin. 55 3215 (in Chinese) [秦义校、程玉民 2006 55 3215]
[20] Dai B D, Cheng Y M 2007 Acta Phys. Sin. 56 597 (in Chinese) [戴保东、程玉民 2007 56 597]
[21] Ren H P, Zhang W 2009 Chin. Phys. B 18 4065
[22] Wendland H 2001 IMA Journal of Numerical analysis 21 285
[23] Armentano M G, Duran R G 2001 Applied Numerical Mathematics 37 397
[24] Armentano M G 2002 SIAM J. Numer. Anal. 39 38
[25] Zuppa C 2003 Bulletin of the Brazilian Mathematical Society 34 231
[26] Krysl P, Belytschko T 1997 Computer Methods in Applied Mechanics and Engineering 148 257
[27] Chung H J, Belytschko T 1998 Computational Mechanics 21 91
[28] Gavete L, Cuesta J L, Ruiz A 2002 International Journal for Numerical Methods in Engineering 53 677
[29] Gavete L, Gavete M L 2003 International Journal for Numerical Methods in Engineering 58 2239
[30] Gavete L, Faclon S 2001 Eur. J. Mech. A/Solids 20 327
[31] Rynne B P 2000 Advances in Computational Mathematics 12 251
[32] Rossi R, Alves M K 2004 Computational Mechanics 33 194
[33] Han W M, Meng X P 2001 Computer Methods in Applied Mechanics and Engineering 190 6157
[34] Cheng R J, Liew K M 2009 Computational Mechanics 45 1
[35] [王烈衡、许学军. 有限元方法的数学基础. (北京: 科学出版社) 2004]
[36] [李开泰、黄艾香、黄庆怀. 有限元方法及其应用(修订本). (西安: 西安交通大学出版社) 1992]
[37] Cheng R J, Cheng Y M 2008 Applied Numerical Mathematics 58 884
-
[1] Belytschko T, Krongauz Y 1996 Computer Methods in Applied Mechanics and Engineering 139 3
[2] Cheng R J, Ge H X 2009 Chin. Phys. B 18 4059
[3] Wang J F, Sun F X, Cheng R J 2010 Chin. Phys. B 19 1
[4] Cheng R J, Cheng Y M 2008 Acta Phys. Sin. 57 6037 (in Chinese)[程荣军、程玉民 2008 57 6037]
[5] Cheng R J, Cheng Y M 2007 Acta Phys. Sin. 56 5569 (in Chinese)[程荣军、程玉民 2007 56 5569]
[6] Liu W K, Jun S, Zhang Y F 1995 International Journal for Numerical Methods in Engineering 20 1081 Cheng R J, Ge H X 2010 Chin. Phys. B 19 090201 Duarte C A, Oden J T 1996 Computer Methods in Applied Mechanics and Engineering 139 237
[7] Onate E, Idelsohn S, Zienkiewicz O C 1996 International Journal for Numerical Methods in Engineering 39 3839
[8] Atluri S N, Zhu T 1998 Computational Mechanics 22 117
[9] Aluru N R 2000 International Journal for Numerical Methods in Engineering 47 1083
[10] Liu W K, Chen Y J 1995 International Journal for Numerical Methods in Fluids 21 901
[11] Idelsohn S R, Onate E, Calvo N 2003 International Journal for Numerical Methods in Engineering 58 893
[12] Cheng Y M, Peng M J, Li J H 2005 Acta Mechanica Sinica 37 719 (in Chinese)[程玉民、彭妙娟、李九红2005 力学学报 37 719] Cheng Y M, Li J H 2005 Acta Phys. Sin. 54 4463 (in Chinese)[程玉民、李九红 2005 54 4463]
[13] Chen L, Cheng Y M 2010 Chin. Phys. B 19 090202
[14] Chen L, Cheng Y M 2008 Acta Phys. Sin. 57 1 (in Chinese) [陈 丽、程玉民 2008 57 1]
[15] Chen L, Cheng Y M 2008 Acta Phys. Sin. 57 6047(in Chinese) [陈 丽、程玉民 2008 57 6047]
[16] Peng M J, Cheng Y M 2009 Engineering Analysis with Boundary Elements 23 77
[17] Zhu T, Zhang J D, Atluri S N 1998 Computational Mechanics 21 223
[18] Kothnur V S, Mukherjee S, Mukherjee Y X 1999 International Journal of Solids and Structures 36 1129
[19] Cheng Y M, Cheng M J 2003 Acta Mechanica Sinica 35 181 (in Chinese)) [程玉民、陈美娟 2003 力学学报 35 181] Cheng Y M, Peng M J 2005 Science in China 35 435 (in Chinese) [程玉民、彭妙娟 2005 中国科学 35 435] Qin Y X, Cheng Y M 2006 Acta Phys. Sin. 55 3215 (in Chinese) [秦义校、程玉民 2006 55 3215]
[20] Dai B D, Cheng Y M 2007 Acta Phys. Sin. 56 597 (in Chinese) [戴保东、程玉民 2007 56 597]
[21] Ren H P, Zhang W 2009 Chin. Phys. B 18 4065
[22] Wendland H 2001 IMA Journal of Numerical analysis 21 285
[23] Armentano M G, Duran R G 2001 Applied Numerical Mathematics 37 397
[24] Armentano M G 2002 SIAM J. Numer. Anal. 39 38
[25] Zuppa C 2003 Bulletin of the Brazilian Mathematical Society 34 231
[26] Krysl P, Belytschko T 1997 Computer Methods in Applied Mechanics and Engineering 148 257
[27] Chung H J, Belytschko T 1998 Computational Mechanics 21 91
[28] Gavete L, Cuesta J L, Ruiz A 2002 International Journal for Numerical Methods in Engineering 53 677
[29] Gavete L, Gavete M L 2003 International Journal for Numerical Methods in Engineering 58 2239
[30] Gavete L, Faclon S 2001 Eur. J. Mech. A/Solids 20 327
[31] Rynne B P 2000 Advances in Computational Mathematics 12 251
[32] Rossi R, Alves M K 2004 Computational Mechanics 33 194
[33] Han W M, Meng X P 2001 Computer Methods in Applied Mechanics and Engineering 190 6157
[34] Cheng R J, Liew K M 2009 Computational Mechanics 45 1
[35] [王烈衡、许学军. 有限元方法的数学基础. (北京: 科学出版社) 2004]
[36] [李开泰、黄艾香、黄庆怀. 有限元方法及其应用(修订本). (西安: 西安交通大学出版社) 1992]
[37] Cheng R J, Cheng Y M 2008 Applied Numerical Mathematics 58 884
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