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B02 Influencing fibre orientation by means of process-integrated actuators

Project Area

B02

Project Leaders

Welf-Guntram Drossel

Kenny Pagel

Cooperation Projects

A01 A03 A04 B03 B04 C01 C04 C05 Z01
B02 Influencing fibre orientation by means of process-integrated actuators
Summary
The DediGrad subproject B02 explores the use of shape-memory-based actuators for the active control of fibre orientation and transition structures in hybrid fibre-reinforced components. The objective is to define suitable interface structures for load-adapted grading, integrate shape-memory alloys in a process-compatible manner, and assess their influence on the mechanical behaviour of the resulting structures by experimental and numerical means. The subproject combines material characterisation, modelling, and demonstrator testing in order to understand the mechanisms of process- and material-dependent structural changes. In this way, B02 establishes the basis for adaptively activated transition zones in graded lightweight structures.
001 Objectives

Active Structure Control

  • Definition of suitable interface structures for load-adapted grading
  • Demonstration of the functionality of SMA-supported transition structures by simulation and experiment
  • Development of approaches for manufacturing such graded structures
  • Assessment and optimisation of shape-memory-alloy-supported transition zones
002 Scientific Questions

Actuator-Based Fibre Orientation

  • What effects do SMA-activated transition structures have on the mechanical properties of hybrid fibre-reinforced polymers?
  • Which mechanisms govern the process- and material-dependent structural behaviour of SMA-based transition zones?
  • How can approaches for optimising alloys and design parameters be derived?
  • Which thermoplastic downstream processes are suitable for integrating SMA-activated transition structures?

Related Project Members

Project-related publications

K. Pagel, B. Senf, T. Mäder, T. Krüger, S. Rudolph, W.-G. Drossel Integration of shape memory alloy wires in polymer structures and their applications as strain sensors and actuators, ASME SMASIS, 10. September, St.Louis – https://www.dedigrad.de/en/publications/integration-of-shape-memory-alloy-wires-in-polymer-structures-and-their-applications-as-strain-sensors-and-actuators-asme-smasis-10-september-st-louis/

Subprojects

B02

Contributors

Kenny Pagel Tony Krüger Stephan Rudolph Welf-Guntram Drossel

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B03 Electromagnetic alignment of reinforcement elements

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B04 Dedicated edge zone characteristics for pultruded fibre-reinforced polymer and ceramic profiles

Functional edge-zones for performance-optimised composite profiles

Project Area
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Project Leaders
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B05 Pultrusion of semi-finished products with graded properties using recyclates from plastic waste streams

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Shaping the Future of Adaptive Lightweight Structures.