Bond Damage Contact Model for Soft Rocks

A new plasticity bond damage model for highly porous, soft rocks is proposed and implemented as a contact model in the discrete element method DEM. The Particle upscaling law for strength, softening, and far-field interaction parameters are presented and validated in Zheng & Ciantia (2025) enabling computational efficiency. Also, a strength correction equation is developed in Zheng & Ciantia (2025) to consider sample size effect of rocks. Finally, for boundary value problems like pile installation, the computational improvement of the model led pile penetration simulations in porous, soft rocks for the first time conducted in Zheng & Ciantia (2025).

Keywords

  • DEM
  • Discrete Element Model
  • soft rocks
  • chalk
  • porous
  • soil/structure interaction

References

Zheng J & Ciantia MO (2025) An Efficient Damage‑Plasticity DEM Contact Model for Highly Porous Rocks. Rock Mechanics and Rock Engineering. (Accepted)

Bond Damage Contact Model for Soft Rocks

UDM Version: 1.0
Release Date: 10 feb. 2025

Category: Rock

Software: Download: User Guide: Contact: Developer:

Senaste nytt
  • Operativ bergmekanik På ITASCA gillar vi en blandning av fältjobb och analyser. Vi erbjuder stöd inom operativ...
    Läs mer
  • Jennifer firar fem år med strategisk roll ...
    Läs mer
  • Axel tillbaka med nya perspektiv ...
    Läs mer

Kommande händelser
13 maj
Getting Started With Dynamic Modeling in FLAC3D
This training supplies the tools needed to describe and apply the workflow for dynamic analysis in FLAC3D, demonstrating a comprehensiv... Läs mer
8 maj
World Tunnel Congress 2025
This year the World tunnel congress 2025 is hosted in Sweden Stockholm. We are excited to meet all of you in Stockholm the 9-15th of Ma... Läs mer
11 juni
Python in Itasca Software
... Läs mer