%0 Journal Article %A Gang, G. %A Liu, Y.H. %D 2010 %J Computers, Materials \& Continua %@ 1546-2226 %V 20 %N 3 %P 251--272 %T A Nonlinear Optimization Algorithm for Lower Bound Limit and Shakedown Analysis %M doi:10.3970/cmc.2010.020.251 %U http://www.techscience.com/cmc/v20n3/22599