Cellular, pressure actuated shape-flexible structures

• Applicants: Professor Dr.-Ing. Chokri Cherif; Professor Dr.-Ing. Michael Sinapius
• Subject Area: Lightweight Construction, Textile Technology
• Term: from 2015 to 2020
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 280656304

• Final Report Year: 2023

Final Report Abstract

Morphing composite structures having defined stiffness are subject of investigation of international research groups. One approach to handle the conflict between the structural flexibility for shape variation and stiffness and strength are pressure-actuated cell or honeycomb structures. These structures include pressure-actuated cellular structures (PACS), which have been investigated just theoretically up to now. The aim of the research project was to obtain theoretical and experimental knowledge that is required for the design, manufacturing and testing integral textile-based PACS. In this joint research project, methodically designed double-row PACS using a textile-engineered integral design were investigated, efficiently pressurized and experimentally characterized. With two design studies using realistic boundary conditions, the suitability of PACS as aeronautical morphing control surfaces was demonstrated.

Publications

• Enhanced design methods for pressure actuated cellular structures and evaluation. SAMPE Long Beach 2016 Conference and Exhibition, Long Beach, California, 2016.
  B. Gramüller & C. Hühne
  
• On Pressure-Actuated Cellular Structures. Dissertation (Betreuer: C. Hühne), Braunschweig, Germany, 2016
  B. Gramüller
  
• Development and Testing of woven GFRP Flexure Hinges for Pressure Actuated Cellular Structures (PACS), in: ICCS20. Proceedings of the 20th International Conference on Composite Structures, Paris, France, First edition, Società editrice escu-lapio, Bologna, Italy, 2017
  J. Boblenz & C. Hühne
  
• Development of 3D woven cellular structures for adaptive composites based on thermoplastic
  C. Sennewald; M. Vorhof; P. Schegner; G. Hoffmann; C. Cherif; J. Boblenz & M. Sinapius; C.
  
• Development of 3D woven cellular structures for adaptive composites based on thermoplastic hybrid yarns. IOP Conference Series: Materials Science and Engineering, 369, 012041.
  Sennewald, C.; Vorhof, M.; Schegner, P.; Hoffmann, G.; Cherif, C.; Boblenz, J.; Sinapius, M. & Hühne, C.
  
• Development of adaptive woven cellular structures. 18th AUTEX World Textile Conference, Istanbul, Turkey, 2018.
  Sennewald, C.; Vorhof, M.; Schegner, P.; Hoffmann, G. & Cherif, C.
  
• New method for warp yarn arrangement and algorithm for pattern conversion for three-dimensional woven multilayered fabrics. Journal of Industrial Textiles, 49(10), 1334-1356.
  Vorhof, Michael; Weise, Daniel; Sennewald, Cornelia & Hoffmann, Gerald
  
• Overview of Necessary Development Steps for the Realization of Woven Cellular Structures for Adaptive Composites. Journal of Fashion Technology & Textile Engineering, s5.
  Sennewald, Cornelia; Vorhof, Michael; Hoffmann, Gerald & Cherif, Chokri
  
• Technology Development for Direct Weaving of Complex 3D Nodal Structures. Applied Composite Materials, 26(1), 423-432.
  Schegner, Philipp; Fazeli, Monireh; Sennewald, Cornelia; Hoffmann, Gerald & Cherif, Chokri
  
• Bioinspirierte adaptive Faserverbunde auf Basis gewebter zellularer Strukturen. 24. Nationales SAMPE Symposium, Dresden, Germany, 2019
  C. Sennewald; C. Cherif; J. Boblenz; P. Meyer; M. Sinapius & C. Hühne
  
• Development and Testing of Woven FRP Flexure Hinges for Pressure-Actuated Cellular Structures with Regard to Morphing Wing Applications. Aerospace, 6(11), 116.
  Meyer, Patrick; Boblenz, Johannes; Sennewald, Cornelia; Vorhof, Michael; Hühne, Christian; Cherif, Chokri & Sinapius, Michael
  
• Active Shape Control. Adaptronics – Smart Structures and Materials, 155-225.
  Sinapius, Johannes Michael; Hühne, Christian; Sadri, Hossein & Riemenschneider, Johannes
  
• Aktiv formveränderliche Strukturen, in: Jahresbericht 2021, 2022, pp. 26–31
  A. Nocke; Q. Bollengier; F. Lohse; E. Häntzsche; L. Benecke; M. Vorhof; P. Meyer; C. Hühne & C. Cherif
  
• Thermoplastic Composites for Integrally Woven Pressure Actuated Cellular Structures: Design Approach and Material Investigation. Polymers, 13(18), 3128.
  Vorhof, Michael; Sennewald, Cornelia; Schegner, Philipp; Meyer, Patrick; Hühne, Christian; Cherif, Chokri & Sinapius, Michael
  
• Transient Dynamic System Behavior of Pressure Actuated Cellular Structures in a Morphing Wing. Aerospace, 8(3), 89.
  Meyer, Patrick; Lück, Sebastian; Spuhler, Tobias; Bode, Christoph; Hühne, Christian; Friedrichs, Jens & Sinapius, Michael
  
• Actuated adaptive wingtips on transport aircraft: Requirements and preliminary design using pressure-actuated cellular structures. Aerospace Science and Technology, 128, 107735.
  Meyer, Patrick; Traub, Hendrik & Hühne, Christian
  
• Test Methods for the Mechanical Characterization of Flexure Hinges. Experimental Mechanics, 63(7), 1203-1222.
  Meyer, P.; Finder, J. & Hühne, C.