Title: The yielding of truncated solid cones under quasi-static and dynamic loading
Abstract: The plastic yielding of truncated solid cones has been investigated experimentally under quasistatic and dynamic axial loads at strain rates of 10−5 sec−1 and 102 sect̄1, respectively. The quasistatic experiments were performed both with and without friction at the interface between the truncated end of the cone and the ‘ rigid ’ wall. Both the dynamic and the quasi-static yield stresses increase linearly with an increase in conical angle, and the dynamic values are about 20–80 per cent higher than the frictional quasi-static results. A part of this increase is due to Coulomb friction. The quasi-static experimental results are compared with lower bound axisymmetric plasticity solutions, with favourable agreement. The coefficient of friction is determined by comparing the theoretical results with the experimental results. The condition for sticking at the interface is also given. The velocity fields associated with the stress fields were considered and it was found that the Haar-von Karman hypothesis is violated in limited regions for a certain range of conical angles.
Publication Year: 1968
Publication Date: 1968-11-01
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 12
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