Stress analysis of an agitated particle bed with different particle aspect ratios by the discrete element methodWei Pin Goh, Mojtaba Ghadiri, Frans Muller, Kushal Sinha, Nandkishor Nere, Raimundo Ho, Shailendra Bordawekar and Ahmad SheikhEPJ Web Conf., 140 (2017) 06022DOI: https://doi.org/10.1051/epjconf/201714006022