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Abstract Abstract: On the ��-plane in Haigh Westergaard stress space the projection area of dodecagon intersected with Mises circle equals that of Mises, the dodecagon is called the equal area linear yield locus, and its equation is called equal area linear yield criterion or EA criterion for short. The criterion and its plastic work rate done per unit volume were first derived. Then, a generalized worked example of plate rolling was analyzed by the criterion and its corresponding plastic work rate. Finally, the precision of the solution was compared with measured roll separation force in plate finish rolling .It turns that the calculated results by EA criterion are little higher than those of measured and in good agreement with those by Avitzur��s.
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Received: 07 August 2008
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Corresponding Authors:
Zhao De��wen
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2010, Vol. 17 
