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Research

We develop methods to design and simulate materials that learn from stress, respond to change, and use resources intelligently.

For the entire value chain, the CRC/TRR outlines exemplary approaches to developing and integrating technologies using process-appropriate models and methods, and their consolidation into an iDP system. The methodological clarification of fundamental structural phenomena in 1D and 2D grading using elementary test specimens serves as the starting point for the targeted load-dedicated 3D grading with increased complexity. From the existing problem hierarchy, the project areas (A: Combined production processes, B: Mechanisms in individual processes, C: Models, methods and iDP system) emerge by combining the location-specific core competencies.
Project Area A

Combined production processes

The integration of individual processes into combined production systems for load-dedicated modular flat and profile systems with graded material transitions is the research focus of Project Area A. The insights gained from these integrative processes provide essential constraints for the selection of process-specific models and methods, as well as for the expansion of the basic processes: injection moulding and pressing process. These processes need to be fundamentally flexible so that they can be combined with each other and with additional individual processes such as pultrusion, extrusion, and tape laying. Semi-finished product processes hold a special position within the technology combinations, as their execution provides significant degrees of freedom for the design of modified injection moulding and pressing processes.
Project Area B

Mechanisms in individual processes

The in-depth exploration of fundamental effects shaping the continuous property transitions between the FRP and plastic substrates, both locally and globally, is the focus of Project Area B. This area prioritizes physical effects, which allow for the active and passive adjustment of direction-dependent and graded properties in the base processes (injection moulding, pressing, and semifinished product processes), as well as the clarification of the coupling phenomena induced therein. A process-specific manipulation of fibre arrangement is envisaged to “resolve” the interfaces between the substrates. Sensor elements accompany the production process for enhanced data collection, enabling holistic feedback with the overarching iDP system. This establishes a self-regulating system that allows for a comprehensive linkage between target and actual states within the structure/process-property relationships. 
Project Area C

Models, methods and iDP system

The analysis and development of a simulation system based on multi-criteria methods for the design of FRP/plastic structures with graded material transitions and load-adapted anisotropic characteristics is the primary goal of Project Area C. The strategies, procedures, and solutions developed in the production-oriented project areas are particularly prepared and integrated into an overarching holistic view here. In this formalisation process, the experiences and preliminary work on modelling for specific problems in plastic and FRP processing available at the locations in Aachen, Chemnitz, and Dresden are incorporated. 

001 Project Area

Project Area A - Combined production processes

Each DediGrad subproject focuses on a different scale — from microstructure to full component behavior. Together, they form a chain of knowledge for lighter, more resilient engineering.

002 Project Area

Project Area B - Mechanisms in individual processes

003 Project Area

Project Area C - Models, methods and iDP system

004 Project Area

Project Area Z - Central administrative project

Resources

Explore publications and materials from the TRR 402

Learn more through scientific publications, posters, presentations, and open-access papers and gain insights into current research results and developments within the collaborative research center.

Open Resources
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Shaping the Future of Adaptive Lightweight Structures