Edinburgh-Elasto-Plastic-Adhesive (EEPA) contact model

Material subjected to relatively high loads (consolidation) may experience plastic deformation, resulting in increased contact area and increased cohesive behaviour. History dependent elasto-plastic-adhesive contact models can be used in DEM to simulate this behaviour. One such model is the Edinburgh-Elasto-Plastic-Adhesive (EEPA) contact model proposed by Morrissey (2013).

A linear and a non-linear version of the EEPA contact model are implemented for PFC version 6.0. These versions contain several slight differences with regard to the original model proposed by Morrissey (2013), as discussed in the User Guide. These models have been tested in PFC3D version 6.00.27, and not tested with PFC2D.

Non-linear EEPA model force-displacement relation in the normal direction

Keywords

  • PFC, EEPA, JKR, adhesion, cohesion, plasticity
Edinburgh-Elasto-Plastic-Adhesive (EEPA) contact model

UDM Version: 1
Release Date: Jan 29, 2021

Category: Soil

Software:
  • PFC (PFC3D 6.0)
Download: User Guide: Contact: Developer:

Latest News
  • Itasca has announced the release of FLAC2D v9 Itasca has announced the release of FLAC2D v9, revolutionizing the way we analyze and predict...
    Read More
  • 6th Itasca Symposium on Applied Numerical Modeling The next Itasca Symposium will take place June 3 - 6, 2024, in Toronto, Canada....
    Read More
  • Itasca International Inc. announces the Selection of its New CEO Itasca International Inc. announces the Selection of its New CEO ...
    Read More

Upcoming Events
25 Feb
Débuter avec FLAC2D/FLAC3D
This training is an introduction to continuous modeling with FLAC2D and FLAC3D. At the end of the course, participants will master the ... Read More
23 Feb
SME MINEXCHANGE Conference & Expo
Discover the resources, knowledge and people to take you to the next level at the MINEXCHANGE 2024 SME Annual Conference & Expo. ... Read More
11 Mar
Getting Started with 3DEC
Objectives of the training: Understand the 3DEC numerical approach and the types of problems it can solveKnow how to manipulate the 3DE... Read More