Thornton Tomasetti, Inc. — Department of Defense SBIR Phase I: The proposed work concentrates on the development of a Constitutive Models and Residual St

Description

The proposed work concentrates on the development of a Constitutive Models and Residual Strength finite element simulation module that would be one module in an overall coupled framework, with other modules resolving the fire dynamics (growth and spread), the heat transfer across materials, pyrolysis, etc. A successful Phase I of the project will assess and demonstrate the feasibility of the proposed approaches for simulation of aluminum panels, decks and/or components subjected to fire as well as mechanical loads at various strain rates. Two alternative tracks: creep description and classical viscoplasticity framework will be tested for accuracy and efficiency. In conjunction with the Navy, both approaches will be validated against GFI experimental test data. Development of a complete structural assessment module for fire effects and residual strength simulation for aluminum ships during and after fire is contemplated for Phase II.