Talk:Drucker–Prager yield criterion

Latest comment: 15 years ago by Bbanerje in topic Diagrammes

Authors

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Is "Prager" William Prager? —DIV (128.250.80.15 (talk) 02:47, 19 January 2009 (UTC))Reply

Yes. Bbanerje (talk) 03:41, 13 February 2009 (UTC)Reply

Diagrammes

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I don't understand the images under Derivation of expressions for A,B in terms of c,φ. They need more explanation somewhere. —DIV (128.250.80.15 (talk) 00:20, 22 January 2009 (UTC))Reply

These are just two views of the yield surface (in principal stress space). The figure on the right shows the intersection of the   plane with the two yield surfaces. The figures were generated in Matlab. I'm sure better ones can be created. Bbanerje (talk) 03:44, 13 February 2009 (UTC)Reply

Expressions in terms of cohesion and friction angle

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The expressions for circumscribed, inscribed and middle circumscribed seem to have got mixed up. They do not match the derivation.