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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/10805
Title: A new criterion for modeling multiple discontinuities passing through an element using XIGA
Authors: Singh, Indra Vir
Bhardwaj G.
Mishra, B. K.
Published in: Journal of Mechanical Science and Technology
Abstract: In this paper, a new criterion is proposed for the modeling multiple discontinuities i.e. crack, hole and inclusion passing through an element by XIGA. The modeling of multiple discontinuities passing through an element is done by imposing the additional degrees of freedom at the control points lying inside the influence of elements intersected by the discontinuities. In XIGA, the crack faces are modeled by discontinuous Heaviside jump functions, whereas the singularity in stress field at the crack tip is modeled by crack tip enrichment functions. The modeling of holes and inclusions is performed by Heaviside jump function and distance function respectively. The value of stress intensity factor is computed using domain form of interaction integral approach. Few static plane edge crack problems are analyzed in the presence of holes and inclusions to validate the proposed criterion. The results obtained by XIGA are compared with XFEM. © 2015, The Korean Society of Mechanical Engineers and Springer-Verlag Berlin Heidelberg.
Citation: Journal of Mechanical Science and Technology (2015), 29(3): 1131-1143
URI: https://doi.org/10.1007/s12206-015-0225-8
http://repository.iitr.ac.in/handle/123456789/10805
Issue Date: 2015
Publisher: Korean Society of Mechanical Engineers
Keywords: Cracks
Holes
Inclusions
Stress intensity factor
XIGA
ISSN: 1738494X
Author Scopus IDs: 57204061377
56379004400
55578538300
Author Affiliations: Singh, I.V., Department of Mechanical and Industrial Engineering, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247667, India
Bhardwaj, G., Department of Mechanical and Industrial Engineering, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247667, India
Mishra, B.K., Department of Mechanical and Industrial Engineering, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247667, India
Corresponding Author: Singh, I.V.; Department of Mechanical and Industrial Engineering, Indian Institute of Technology RoorkeeIndia
Appears in Collections:Journal Publications [ME]

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