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The effect of damping on the spring-mass dynamic fracture model

โœ Scribed by J. G. Williams; M. N. M. Badi

Book ID
104622841
Publisher
Springer Netherlands
Year
1989
Tongue
English
Weight
484 KB
Volume
39
Category
Article
ISSN
1573-2673

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โœฆ Synopsis

A recent paper has analysed high speed crack growth using a lumped mass-spring model which includes the effect of the contact stiffness. It was shown that the energy release rate G could be computed for this dynamic situation by using the kinetic energy of the mass. The model has been particularly successful in describing dynamic effects in the Charpy impact test. This paper extends the model by including damping in parallel with the specimen stiffness which is a reasonable representation ofa visco-elastic material. It is shown that G can be greatly influenced by even a small amount of damping if short time fracture is involved. The method is based on the energy rate balance approach pioneered by MLW.

๐Ÿ“œ SIMILAR VOLUMES

The analysis of dynamic fracture using l
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โœ J. G. Williams ๐Ÿ“‚ Article ๐Ÿ“… 1987 ๐Ÿ› Springer Netherlands ๐ŸŒ English โš– 671 KB

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