Research Results

The CALIPER research program focused on three major challenges in granular materials-related calibration and simulations: deformable grains, irregular grains and cohesive grains. In each of these subject areas we moved beyond the “spherical cow” paradigm that has understandably dominated the granular field for a long time. In each of these subjects, our envisioned approach consisted of developing experimental imaging and mechanical testing methods suitable for resolving the physical mechanisms at play, while extracting calibration information from such methods to develop numerical methods for the granular mechanisms/systems involved.

Of key importance is to provide a deep fundamental understanding of the dominant physical mechanisms that contribute to the mechanics of deformable, irregular or cohesive grain packings. The developed calibration methods and appropriate computational schemes were therefore applied on both industrially relevant materials and on appropriately simplified granular model systems. The outcomes are then a generic academic understanding of granular materials, but also application specific knowledge that can support the development of e.g. digital twins for “industrial plant simulators”.

Research Articles

The Caliper peer reviewed scientific output so far can be found in the list below, or via a search on the project number:

Research Presentations

Caliper contributed to the organization of several conferences, notably the 2023 Lorentz Center conference “Getting Into Shape” and the 2024 Gordon Research Conference on Granular matter

Caliper students presented at several conferences:

Open Science: data & methods

Caliper also aimed to leave behind reproducible methods and science, for others to use and build upon. Evidently releasing all methods and data is a huge endeavor, but below we show a list of open science evidence the program produced.