2007 YIELD LINE THEORY AND CONCRETE PLASTICITY Mikael W BRAESTRUP Ramboll Oil & Gas, Denmark Keywords: Concrete structures, Mathematical modelling, Slabs & plates. 1 INTRODUCTION The mathematical theory of plasticity, or limit analysis, was developed around the middle of the 20th century by Hodge, Drucker, Prager and Greenberg [1-4] in the USA and Hill [5] in the UK. Making use of extremum principles that can be traced back at least to Coulomb [6], the theory aims to predict the collapse load…
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