We represent the basic subject of mechanical engineering, technical mechanics, in research and teaching. We research and develop multiscale multi-field models with a focus on biomechanics and adaptronics. In our laboratories we perform the necessary validation experiments. We develop material laws for the description of different materials, from biodegradable polymers to biofilms and functional materials for adaptronics. As an interdisciplinary science of engineering, adaptronics deals with the research and development of self-adapting components and constructions from the entire field of mechanical engineering. Adaptronics involves the integration of new functions in load-bearing components by combining conventional construction materials with active material systems. Functional materials are energy converters which extend the classical load-bearing and shape-defining functions by sensoric and actuatoric functions. Actuatoric and sensory properties, in combination with adaptive, fast controllers, enable optimal self-adaptation to the respective operating environment. In biomechanics, we develop scale-spanning models that extend from the cellular to the tissue and organ level. In addition to numerical work, experimental investigations, especially in the field of biomechanics, are of particular importance. In addition to classical passive, mechanical investigations in our laboratories, we also perform active electro-chemo-mechanical experiments with state-of-the-art measurement technology on various systems on various size scales. By bringing together numerics and experimental expertise, it is possible to transfer knowledge gained from nature into technology in the sense of bionic thinking.