STRAIN ENERGY DENSITY TECHNIQUE FOR PREDICTING FRACTURE IN STEEL STRUCTURES

Authors
  1. Link, R.A.
Corporate Authors
Defence Research Establishment Suffield, Ralston ALTA (CAN);Centre for Frontier Engineering Research, Edmonton ALTA (CAN)
Abstract
The report summarizes work of a study to evaluate the potential for using the strain energy density approach coupled with the finite element method to predict fracture of submarine hull plates subject to underwater blast loading.The study was divided into three main areas. The first area involves the review and evaluation of all major strain energy density (SED) theories and selection of the appropriate method for use in a finite element code. The second area involves the implementation of the chosen SED method into ADINA, a general purpose finite element program. The third area involves model verification with finite element analyses of various fracture problems, including transversely loaded flat plates (similar to ship or submarine hulls). The report describes the progess made to date on the SED project. Several different SED theories are critically reviewed and the most suitable criteria is selected for implementation into the finite element program ADINA. Several fracture problems involving both brittle and ductile fracture are analysed and results are compared to experiment and/or classical solutions.
Report Number
DRES-CR-34-92 — Contract Report (Final)
Date of publication
01 Mar 1990
Number of Pages
112
DSTKIM No
93-00687
CANDIS No
127846
Format(s):
Hardcopy;Originator's fiche received by DSIS

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