You are here

Fracture Evaluation and Design Tool for Welded Aluminum Ship Structures Subjected to Impulsive Dynamic Loading

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N00014-10-M-0252
Agency Tracking Number: N10A-041-0223
Amount: $69,984.00
Phase: Phase I
Program: STTR
Solicitation Topic Code: N10A-T041
Solicitation Number: 2010.A
Solicitation Year: 2010
Award Year: 2010
Award Start Date (Proposal Award Date): 2010-06-28
Award End Date (Contract End Date): 2011-04-30
Small Business Information
375 Hudson St FL 12
New York, NY 10014
United States
DUNS: 061226106
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Pawel Woelke
 Principal Investigator
 (212) 367-3000
Business Contact
 Susan Hamner
Title: Contracts Manager
Phone: (202) 649-2444
Research Institution
 Harvard University
 Eric Asetta
29 Oxford Street Pierce Hall 208
Cambridge, MA 2138
United States

 (617) 496-3072
 Nonprofit College or University

Aluminum as a structural material for naval applications has a number of advantages over steel, owing mainly to significant weight reductions which translate to higher speed and range attainable by aluminum vessels. A comprehensive study of research needs for aluminum structures conducted under the ONR program identified the key research areas, which included material behavior and fracture evaluation and design of welded aluminum structures subjected to dynamic loading. In order to meet the Navy’s needs for a lightweight, high speed aluminum vessels, a new, accurate and efficient analysis and limit state based design methodology for welded aluminum ship structures is proposed. The proposed methodology accounts for anisotropic, nonlinear and rate dependent behavior of aluminum sheets, subjected to dynamic loads causing fracture and failure of structural components. A comprehensive analysis and design toolkit will be developed, allowing for better estimates of the ultimate strength and design safety factors. Substantially more efficient, accurate and rational design of high speed aluminum ships will result, which could lead to great savings in military and commercial applications.

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

US Flag An Official Website of the United States Government