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The Correlation of Unstable Crack Length Data for Sheet Materials
Published online by Cambridge University Press: 07 June 2016
Summary
A semi-empirical analysis of unstable crack propagation in thin sheets is given. An effective value of the crack tip strain concentration factor is used as the criterion for instability. Good correlation is achieved with experimental results from unreinforced sheets of aluminium and titanium alloys and high-strength steels. The interdependence of geometry and stressstrain curve properties in determining the unstable crack propagation characteristics of sheet materials is illustrated in an appendix.
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- Research Article
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- Copyright © Royal Aeronautical Society. 1961
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