|
Accession Number
|
ADA563994
|
|
Title
|
Numerical Analysis of Solids at Failure.
|
|
Publication Date
|
Aug 2011
|
|
Media Count
|
26p
|
|
Personal Author
|
F. Armero
|
|
Abstract
|
This report presents a summary of the research supported by the AFOSR during the period June 1 2008 to May 31 2011 on the formulation and analysis of numerical methods for the analysis of failure in solids and structures of interest to the Air Force mission. Of special interest is the consideration of dynamic range, including dynamic fracture and failure. The development of new enhanced finite element methods that incorporate the discontinuous solutions characteristic of the failure of solids and structures has been one of the main outcomes of the project. The new methods include finite element formulations that address the special issues arising in the dynamic range, including for instance brittle/ductile failure mode transitions and crack branching. Similarly, the extension of these finite elements to the general three-dimensional range and the failure of partially saturated poroplastic media have also been addressed in this project.
|
|
Keywords
|
Coupled poroplasticity
Crack branching
Discontinuities
Dynamic fracture
Failure(Mechanics)
Finite element analysis
Finite elements with embedded strong discontinuities
Fracture(Mechanics)
Kinematics
Material failure
Partially saturated media
Solids
Structural mechanics
|
|
|
Source Agency
|
Non Paid ADAS
|
|
NTIS Subject Category
|
46E - Structural Mechanics
|
|
Corporate Author
|
California Univ., Berkeley. Dept. of Civil and Environmental Engineering.
|
|
Document Type
|
Technical report
|
|
Title Note
|
Final rept. 1 Jun 2008-31 May 2011.
|
|
NTIS Issue Number
|
1302
|
|
Contract Number
|
FA9550-08-1-0410
|
