Some problems in the optimal topology design of structures with discrete variables arestudied in this paper.The problem of a model of discrete optimization is d
The orthotropic mechanical sensor of piezoelectric composite material made from piezoelectricceramic and resin materials and their sensing mechanism are present
Based on our 2D BEM software THBEM2 which can be applied to the simulation of an elasticbody with randomly distributed identical circular holes,a scheme of BEM