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ON the equivalent relation of the line spring model: A suggested modification

✍ Scribed by Yu Shou Wen; Zhixe Jin

Publisher
Elsevier Science
Year
1987
Tongue
English
Weight
550 KB
Volume
26
Category
Article
ISSN
0013-7944

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✦ Synopsis

The line spring model is simple and accurate for the fracture analysis of part-through and slender cracks which often occur in the components of engineering structures. In this paper, the equivalent relation of the stress intensity factors between Reissner's theory of plates and shallow shells and Kirchofl's theory for the line spring model is deduced. It can be expressed as KR I KC when E = h,'c + 0. A modified line spring model including non-local effects of deformation for the line spring is proposed. Finally, the stress intensity factors for an infinite cracked plate with a part-through crack in tension and a plate containing a rectangular surface crack under uniform shearing are solved by means of the modified line spring model (MLSM).

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