Accession Number : ADA432077


Title :   Sensitivity Analysis for Dynamic Failure and Damage in Metallic Structures


Descriptive Note : Final rept. 1 Feb 2001-31 Mar 2005


Corporate Author : OLD DOMINION UNIV RESEARCH FOUNDATION NORFOLK VA


Personal Author(s) : Noor, Ahmed K.


Full Text : http://www.dtic.mil/get-tr-doc/pdf?AD=ADA432077


Report Date : MAR 2005


Pagination or Media Count : 58


Abstract : The objective of the study conducted under this grant is to develop effective computational strategies for: a) assessing the sensitivity of the dynamic failure and damage of metallic structures to variations in both the microstructure and macrostructure material parameters; and, b) incorporating the uncertainties in material parameters in the prediction of response and damage of these structures. The sensitivity coefficients, which are the derivatives of the various structural response quantities with respect to the material parameters, are evaluated by using the direct differentiation method.


Descriptors :   *METALS , *DAMAGE ASSESSMENT , *STRUCTURES , *SENSITIVITY , *FAILURE(MECHANICS) , *WELDING , COMPUTATIONS , PARAMETERS , FINITE ELEMENT ANALYSIS , STRUCTURAL ANALYSIS , STRUCTURAL RESPONSE , COEFFICIENTS , RESIDUAL STRESS , ELASTOPLASTICITY , THERMOELASTICITY.


Subject Categories : FABRICATION METALLURGY
      MECHANICS
      NUMERICAL MATHEMATICS


Distribution Statement : APPROVED FOR PUBLIC RELEASE