EDEM API - Contact Model: Coefficient of restitution as a function of impact velocity

Renan

Overview

This API allows the user to simulate dynamic impacts by implementing a version of the Hertz-Mindlin model, where the coefficient of restitution (COR) varies as a function of the impact velocity. The API reads data from a preference file, which contains a table of impact velocities and their corresponding COR values. The API applies the custom COR values for both particle-particle and particle-geometry contacts.

Pre-Requisite

EDEM 2024.0 or newer

Usage/Installation Instructions

Place the DLL and the preference text file in the same directory as your EDEM simulation. The text file must follow this specific format: the first line should contain the header, and each subsequent line must be divided into two columns and comma-separated.