"This revised and updated edition of a book first published in 1972 has kept the general features of the first edition but as could be expected after two decades there are also substantial differences. For instance optimal design has been completely deleted as the developments in this field have been so great that it warrants a book in itself. The fundamental concepts based on Drucker's postulate rather than those of Prager's assumptions ..."
"... the methods of the theory of plasticity and especially of Limit Analysis and
Design, with emphasis on problems pertaining to civil engineering. ..."