Together with Jose Duque from Universidad de la Costa (Colombia), Carlos Lascarro from Universidad del Sinú (Colombia) and William Fuentes from Pontificia Universidad Javeriana (Colombia), we show that the hypoplastic model for sand extended with both intergranular strain approaches realistically reproduces the soil behavior under different loading conditions. The accumulated displacements of laterally loaded piles under cyclic loading are fairly well predicted by both models (type B prediction: calibration based on element tests). However, a discrepancy was observed when comparing the evolution of the normalized stiffness observed in the centrifuge experiments and the simulations. The source of this discrepancy was further investigated in the paper.

C. Lascarro, M. Tafili, W. Fuentes, J. Duque: Comparative analysis of two intergranular strain-based hypoplastic models through elemental and centrifuge testing. Soil Dynamics and Earthquake Engineering, 2024. The paper is available at the following Link.