News Article

Introducing Our New IMASS Constitutive Model

The Itasca Constitutive Model for Advanced Strain Softening (IMASS) has been developed to represent the rock mass response to excavation induced stress changes.

IMASS uniquely utilizes two softening (or residual) yield envelopes to represent the damage around an excavation, slope, or caving process by accounting for the progressive failure and disintegration of the rock mass from intact, jointed, and/or veined rock to a disaggregated, bulked material.

Now Available as an Option

IMASS is available as an optional constitutive model for use in both FLAC3D and 3DEC (version 7.0 or latter) and is sold as a monthly or annual lease.

LEARN MORE

FLAC3D block cave model using a coupled IMASS ReBop approach. The predicted flow, yield, and air gap zones are indicated.
FLAC3D model using IMASS showing the degree of damage (strength loss) in the the main galleries after 32 months of nearby mining.
FLAC3D block cave model using a coupled IMASS CAVESIM approach with the degree of rock mass damage indicated.
Dernières Nouvelles
  • ITASCA Strengthens North American Delivery of Integrated Geomechanics and Hydrogeology Solutions Drawing on decades of geomechanical and hydrogeological expertise, ITASCA has announced the formation of ITASCA...
    En savoir plus
  • Itasca has announced the release of FLAC2D v9 Itasca has announced the release of FLAC2D v9, revolutionizing the way we analyze and predict...
    En savoir plus
  • 6th Itasca Symposium on Applied Numerical Modeling The next Itasca Symposium will take place June 3 - 6, 2024, in Toronto, Canada....
    En savoir plus

Évènements à Venir
15 sept.
ITASCA at EUROCK 2026: Advancing Innovation in Rock Engineering
ITASCA is pleased to announce its participation in EUROCK 2026 – ISRM Regional Symposium, taking place from 15–19 September 2026 in Sko... En savoir plus
20 sept.
ITASCA to Participate in CouFrac 2026
ITASCA will be participating in CouFrac 2026, taking place from 20–23 September 2026 in Uppsala, Sweden. The conference brings together... En savoir plus
26 oct.
ITASCA at Slope Stability 2026: Strategic Sponsor and Technical Contributor_2
ITASCA is proud to participate as a Strategic Sponsor in Slope Stability 2026, one of the world’s leading international symposiums focu... En savoir plus