Finite element crack growth algorithm for dynamic fracture |
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| Authors: | K S Kannan R Krishna Kumar O Prabhakar |
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| Affiliation: | (1) Department of Metallurgical Engineering, University of Maryland, College Park, USA;(2) Department of Mechanical Engineering, Indian Institute of Technology, Madras, India;(3) Department of Metallurgical Engineering, Indian Institute of Technology, Madras, India |
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| Abstract: | A new finite element crack growth algorithm has been developed to simulate dynamic fracture. In this algorithm, pseudo elements with very high initial density are placed below the crack plane and the density is reduced to zero in a gradual manner as the crack passes the element. A number of linear elastic and elasto-viscoplastic problems have been carried out to test the new algorithm. The results are compared with some of the existing crack growth models. |
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