Length scale effects on shear fracture based on a non-local porous plasticity model

• A non-local continuum damage constitutive model has been developed. The evolution of the damage parameter is driven by a non-local plastic strain rate at low stress triaxiality and by a non-local rate of porosity at higher triaxiality. Nodular cast iron has been employed as a model material for which the model parameters have been calibrated utilizing a variety of tests. The non-local material model is able to explain the different outcome in two sets of tests in pure shear. 

Ämnesord

TEKNIK OCH TEKNOLOGIER  -- Maskinteknik -- Teknisk mekanik (hsv//swe)

ENGINEERING AND TECHNOLOGY  -- Mechanical Engineering -- Applied Mechanics (hsv//eng)

Nyckelord

Cast iron

Nodular iron

Shear flow

Strain rate

Continuum damage

Damage parameter

Length scale effects

Model materials

Model parameters

Porous plasticity

Shear fracture

Triaxiality

Fracture

Publikations- och innehållstyp

ref (ämneskategori)

kon (ämneskategori)