SimCenter at NHERI @UC San Diego Workshop

January 26, 2024

Dr. Satish presents at the UCSD-LHPOST6 workshop.

Dr. Aakash Bangalore Satish, SimCenter post-doctoral researcher, participated in the NHERI@UC San Diego User Training Workshop held on December 14-15, 2023 at UC San Diego. The purpose of the workshop was to bring together researchers and prospective users of the NHERI@UC San Diego Large High-Performance Outdoor Shake Table (LHPOST6) facility and equipment, inspire new research ideas, and assist in proposal preparation for future projects. The audience consisted of early career researchers in both structural and geotechnical earthquake engineering.

Dr. Satish presented “Computational modeling and simulation to complement experimental testing,” which outlined the modeling and simulation capabilities developed at the SimCenter with special emphasis on the treatment of uncertainties. Examples using SimCenter’s quoFEM and EE-UQ applications were provided to demonstrate how computational modeling and experimental testing data are used for calibration. He noted how computational modeling provides benefits to experimental researchers before, during and after an experimental testing campaign - preliminary analyses can be conducted while accounting for uncertainties, new configurations and parameters can be explored, and the simulation model and experimental data can be calibrated.

Prof. Joel Conte, SimCenter domain expert and PI of the UCSD-LHPOST6 facility, stated that “advancement of knowledge in natural hazards engineering, especially in earthquake engineering, really will require an integration/orchestration of experimental, theoretical and numerical research. Even though UCSD is an experimental facility, we recognize the cruciality/importance of complementing the experimental results with advanced numerical analytical research. The NHERI SimCenter is the place to go for advanced modeling and simulation numerical tools to advance knowledge using the experimental results. One of the keys to advance the field of earthquake engineering / natural hazards engineering is detecting the deficiencies in state of the art modeling and overcoming these deficiencies using experimental data. One of the milestones to advance the field is calibration, improvement and validation of high fidelity computational/simulation models which will allow us to decrease our current heavy reliance on physical testing to more reliance on numerical simulation. The explicit treatment and inclusion of all the various pertinent sources of uncertainty are at the heart of performance-based engineering and the SimCenter tools recognize that and are structured in a way to incorporate all these sources of uncertainties.”