Numerical Modelling of Mechanical Grip on Thin Rigid-plastic Plates in Automated Handling

Mechanical behaviour of frozen wet textile is analysed using the idealised model of rigid-plastic thin plate. Limit analysis is performed employing the upper bound theorem. The ultimate load is obtained comparing the results for several possible yield patterns. The collapse diagrams are given in the form revealing the dominant yield pattern and corresponding ultimate load for various geometric parameters of mechanical grip on the plate.