For the paper A novel isogeometric coupling approach for assembled thin-walled structures, here is the core code and implementation that demonstrate the logic of the paper. The corresponding link to access the paper is: https://www.sciencedirect.com/science/article/pii/S0263823124007353. Welcome everyone for discussions and citations! I appreciate your interest and contributions to the field. Please feel free to reach out for any further clarification or collaboration opportunities.