Members of the STAIRLab have recently contributed several improvements to the static integrators in OpenSeesRT. This notably includes implementing determinants in several important linear system classes, which allows integrators like ArcLength and MinUnbalDispNorm to correctly track equilibrium paths in nonlinear static continuation analysis. The improvements for the arc-length method are documented here. A new example […]
Finite element analysis
STAIRLab at the 2025 NHERI Computational Symposium
We are excited to announce that two members of the STAIR Lab will be presenting their research at the upcoming 2025 NHERI Computational Symposium. This symposium gathers leading experts in computational modeling and simulation to discuss advances in research and technology for infrastructure resilience. Our lab’s contributions highlight innovative work in system identification and finite […]
STAIRLab is now on Github
STAIRlab is now on Github! Visit https://github.com/STAIRlab to explore the open-source projects we’ve been working on. Exciting repositories include: xara Nonlinear finite element analysis mdof Optimized system identification library sdof Optimized integration for single-degree-of-freedom systems