Journal Pre-proofs Modeling strong/weak discontinuities by local mesh refinement variable-node XFEM with object-oriented implementation Junlei Ding, Tiantang Yu, Tinh Quoc Bui PII: S0167-8442(19)30546-4 DOI: https://doi.org/10.1016/j.tafmec.2019.102434 Reference: TAFMEC 102434 To appear in: Theoretical and Applied Fracture Mechanics Received Date: 27 September 2019 Revised Date: 18 November 2019 Accepted Date: 3 December 2019 Please cite this article as: J. Ding, T. Yu, T.Q. Bui, Modeling strong/weak discontinuities by local mesh refinement variable-node XFEM with object-oriented implementation, Theoretical and Applied Fracture Mechanics (2019), doi: https://doi.org/10.1016/j.tafmec.2019.102434 This is a PDF file of an article that has undergone enhancements after acceptance, such as the addition of a cover page and metadata, and formatting for readability, but it is not yet the definitive version of record. This version will undergo additional copyediting, typesetting and review before it is published in its final form, but we are providing this version to give early visibility of the article. Please note that, during the production process, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. © 2019 Published by Elsevier Ltd.