Hybrid materials, such as combinations of carbon-reinforced plastics and steel, are essential in high-performance sectors like aerospace and automotive. Nonetheless, their efficient design and process optimization are challenged by the complex interplay of the properties of component raw materials and a wide array of process parameters, including joining technologies and manufacturing methods. Ontologies provide structured frameworks to categorize and represent the diverse data associated with materials and processes. This study explores the application of ontology-based data management in the manufacturing process chain of carbon fiber-reinforced polymer components combined with steel structures, adhering to FAIR principles. It particularly focuses on adhesive bonding and bolting as methods for joining, and on the characterization of material properties such as tensile and fatigue strength. The key contributions of this research are:

1.    An introduction to the ongoing HybridDigital project within the MaterialDigital Initiative.

2.    The development status of a comprehensive data model architecture that can encapsulate various data and file types. This model integrates databases and a triple store with detailed ontologies, complemented by interfaces for efficient data import and export. These features are beneficial for identifying correlations using machine learning and for structural simulations.

3.    The formulation of models using Basic Formal Ontology and Common Core Ontologies, specifically designed for hybrid materials and specialized connection technologies such as adhesion and bolting.

4.    The semi-automated processing and integration of unstructured data, facilitated by large language models.

This study not only presents the meticulous organization of data and its integration into established ontology frameworks but also highlights the current state of research, identifying successful applications as well as existing bottlenecks. The primary objective is to foster the utilization and efficacy of high-performance hybrid materials in key industrial applications.