Abstract
The dynamic shakedown load factor is determined for a saturated porous soil using a piecewise linearized convex yield surface. The formulation is based on Biot's equations of motion. The numerical procedure is based on coupling of the finite element method with linear programming. After computing the shakedown load factor, the safe loading domain is obtained and the responses are computed and compared for four different soil models, i.e. i) elastic-plastic (static), ii) elastic (dynamic), iii) equivalent linear (dynamic), and iv) elastic-perfectly plastic (dynamic).
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