Stress Intensity Factor Extraction from the Enriched Partition of Unity Solution for a Cracked Linear Elastic Medium
- Authors
- Hong, Won-Tak
- Issue Date
- Feb-2017
- Publisher
- KOREAN PHYSICAL SOC
- Keywords
- Stress intensity factor; Crack-tip enrichment; Partition of unity
- Citation
- JOURNAL OF THE KOREAN PHYSICAL SOCIETY, v.70, no.3, pp.245 - 251
- Journal Title
- JOURNAL OF THE KOREAN PHYSICAL SOCIETY
- Volume
- 70
- Number
- 3
- Start Page
- 245
- End Page
- 251
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/6462
- DOI
- 10.3938/jkps.70.245
- ISSN
- 0374-4884
- Abstract
- The stress intensity factor is a useful tool for predicting material failure and describing the stress states of brittle materials. We present a technique to calculate the stress intensity factor for a linear elasticity problem on a cracked domain with an enriched partition of unity method. We use a particular partition of unity function, which is piecewise polynomial and has wide flat-top region. The flat-top area in the partition of unity function helps the displacements and the stress fields in the vicinity of the crack tip to be accurately represented, even with a coarse background mesh. Among other methods for calculating the stress intensity factor, we find that the direct extraction method is the most accurate and efficient one given a relatively coarse background mesh for the enriched partition of unity method.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - ETC > 1. Journal Articles
![qrcode](https://api.qrserver.com/v1/create-qr-code/?size=55x55&data=https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/6462)
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.