Documents in the NTIS Technical Reports collection are the results of federally funded research. They are directly submitted to or collected by NTIS from Federal agencies for permanent accessibility to industry, academia and the public.  Before purchasing from NTIS, you may want to check for free access from (1) the issuing organization's website; (2) the U.S. Government Printing Office's Federal Digital System website http://www.gpo.gov/fdsys; (3) the federal government Internet portal USA.gov; or (4) a web search conducted using a commercial search engine such as http://www.google.com.
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

Science and Technology Highlights

See a sampling of the latest scientific, technical and engineering information from NTIS in the NTIS Technical Reports Newsletter

Acrobat Reader Mobile    Acrobat Reader