8. Glossary

hydroforming; hydroforming

A pressurized fluid forming process for tubes, profiles or blanks, offering great design freedom for the production of complex parts with high dimensional accuracy. The final shape of the part is determined by the die geometry.

endommagement; damage

Refers to the proportion of voids or microcracks due to fractures and other cavities in a material. Continuous damage mechanics proposes to quantify the state of damage of the material by a scalar variable D varying from 0, the undamaged state, to 1, the damage at fracture.

plasticity criteria; plastic criteria

A criterion for determining, under given stresses, whether a part deforms plastically or remains in the elastic range. Two main criteria are often used:

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