This thesis explores the new SysML v2 language, focusing on the improvements it offers in interoperability compared to the previous version, SysML v1, which was limited by ambiguity, imprecision, informal semantics, and difficulties in exchanging information with external software. SysML v2 introduces a textual representation based on formal semantics and a standardized Application Programming Interface (API), which significantly enhances communication with external tools and addresses the integration challenges of SysML v1. A case study is presented to model a liquid hydrogen tank for electric aircraft using SysML v2, demonstrating its practical application in aerospace systems with the use of open-source tools.