New three-dimensional strain-rate potentials for isotropic porous metals: Role of the plastic flow of the matrix

• For the first time, 3D potentials of porous Tresca and Mises materials are derived. • For a porous Mises, π plane cross-section deviates slightly from a circle. • For a porous Tresca, π plane cross-section evolves to a triangle with rounded corners. • Couplings between invariants depend strongly o...
Ausführliche Beschreibung

• For the first time, 3D potentials of porous Tresca and Mises materials are derived. • For a porous Mises, π plane cross-section deviates slightly from a circle. • For a porous Tresca, π plane cross-section evolves to a triangle with rounded corners. • Couplings between invariants depend strongly on the plastic flow of the matrix. Ausführliche Beschreibung