ISSN:
1619-6937
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
,
Physics
Notes:
Summary Inelastic zone growth at the edges of a pre-stressed crack due to stress-wave loading by diffraction is considered. The Dugdale zone model is used, and the surrounding material is a weakly-coupled thermoelastic solid. The growing zone acts as a heat flux site for the solid. A transient analysis for the brief period after zone growth initiation is performed and, for generality, the crack itself is allowed to extend. Expressions for the heat flux and the inelastic zone edge temperature rise are obtained, and show dependence on several important parameters. In particular, the temperature rise is enhanced by the presence of a pre-existing zone, yet varies inversely with the zone growth rate. This rise increases rapidly upon stress wave diffraction, but levels off at values on the order of those found in stress-state analyses.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01182586
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