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Element‐free Galerkin methods
Abstract
An element‐free Galerkin method which is applicable to arbitrary shapes but requires only nodal data is applied to elasticity and heat conduction problems. In this method, moving least‐squares interpolants are used to construct the trial and test functions for the variational principle (weak form); the dependent variable and its gradient are continuous in the entire domain. In contrast to an earlier formulation by Nayroles and coworkers, certain key differences are introduced in the implementation to increase its accuracy. The numerical examples in this paper show that with these modifications, the method does not exhibit any volumetric locking, the rate of convergence can exceed that of finite elements significantly and a high resolution of localized steep gradients can be achieved. The moving least‐squares interpolants and the choices of the weight function are also discussed in this paper.
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Citations
Cited by
Elastic crack growth in finite elements with minimal remeshing
Belytschko, T., & Black, T. (1999) · International Journal for Numerical Methods in Engineering · doi:10.1002/(sici)1097-0207(19990620)45:5<601::aid-nme598>3.0.co;2-s · Cited by 4,880
Self-citationBessa, M. A., Bostanabad, R., Liu, Z., Hu, A., Apley, D. W., Brinson, C., Chen, W., & Liu, W. K. (2017) · Computer Methods in Applied Mechanics and Engineering · doi:10.1016/j.cma.2017.03.037 · Cited by 573
Moving least-square reproducing kernel methods (I) Methodology and convergence
Liu, W.-K., Li, S., & Belytschko, T. (1997) · Computer Methods in Applied Mechanics and Engineering · doi:10.1016/s0045-7825(96)01132-2 · Cited by 554
Self-citationCalculation of stress in atomistic simulation
Zimmerman, J. A., WebbIII, E. B., Hoyt, J. J., Jones, R. E., Klein, P. A., & Bammann, D. J. (2004) · Modelling and Simulation in Materials Science and Engineering · doi:10.1088/0965-0393/12/4/s03 · Cited by 458
Meshfree Methods: Progress Made after 20 Years
Chen, J.-S., Hillman, M., & Chi, S.-W. (2017) · Journal of Engineering Mechanics · doi:10.1061/(asce)em.1943-7889.0001176 · Cited by 420
Metadata
- Authors
- Belytschko, T., Lu, Y. Y., & Gu, L.
- Venue
- International Journal for Numerical Methods in Engineering
- Publisher
- Wiley
- Published
- 1994-01-30
- Volume
- 37
- Issue
- 2
- Pages
- 229-256
- ISSN
- 0029-5981 (ISSN-L)
- 1097-0207
- OpenAlex
- W2142136198
- Cited by
- 5,648
- References
- 0
- FWCI
- 48.81
- Type
- journal article
- Language
- en
- Open access
- closed
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- Belytschko, T., Lu, Y. Y., & Gu, L. (1994). Element‐free Galerkin methods. International Journal for Numerical Methods in Engineering. https://doi.org/10.1002/nme.1620370205
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