ISSN:
0029-5981
Keywords:
Engineering
;
Engineering General
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Mathematics
,
Technology
Notes:
First, the three-dimensional elasto-plastic analyses of 1CT and 18 mm thick CCT specimens are carried out by using the finite element method, and the thickness effects of both specimens are studied. In elastic states, there is no significant difference between the CT and CCT specimen in the distribution of the J-integral along the straight or curved crack front. However, in elasto-plastic states, quite the contrary tendency is obtained in the distributions of J x and COD along the curved crack front for both specimens. Secondly, elasto-plastic analyses are carried out for CCT specimens of four kinds of thickness (B = 200, 18, 6 and 4 mm). The distributions of the J-integral along the crack front are obtained and compared. Finally, the availability of the JR value is examined, which is evaluated from the load versus displacement curve by using Rice's formula.
Additional Material:
22 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/nme.1620220308
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