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Multi-physics tool for predicting fatigue crack propagation using Phase field models

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N68335-16-C-0173
Agency Tracking Number: N16A-003-0039
Amount: $79,932.00
Phase: Phase I
Program: SBIR
Solicitation Topic Code: N16A-T003
Solicitation Number: 2016.0
Timeline
Solicitation Year: 2016
Award Year: 2016
Award Start Date (Proposal Award Date): 2016-04-26
Award End Date (Contract End Date): 2016-10-31
Small Business Information
1046 New Holland Avenue
Lancaster, PA 17601
United States
DUNS: 126288336
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Srujan Rokkam
 (717) 295-6059
 srujan.rokkam@1-act.com
Business Contact
 Frank Morales
Phone: (717) 295-6092
Email: Frank.Morales@1-act.com
Research Institution
N/A
Abstract

Understanding fatigue crack initiation and propagation is critical for life-prediction of aircraft components which are exposed to complex loading conditions. Traditional approaches are based on analytical predictions of linear elastic fracture mechanics (LEFM), or numerical simulations using finite element/boundary element. All those methods have difficulties studying crack growth, and need complicated re-meshing algorithms. In this work, Advanced Cooling Technologies, Inc. (ACT) proposes to develop a novel computational framework for accurate modeling of crack/fatigue initiation and growth in solids, using the framework of phase-field modeling. The approach will yield the crack topology in response to loading conditions, by means of the solution of the governing equations which are cast in a minimization problem of the total energy from elastic, plastic contributions. Phase I will develop the underlying theory, simulation framework and demonstrate its use.

* Information listed above is at the time of submission. *

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