Design of Composite Structures

The area Design of Composite Structures covers the development of optimized lightweight structures of fiber reinforced polymer composites (FRP) for new applications as well as the substitution of existing designs made of other materials.

Finite element program systems (e.g. ABAQUS, ANSYS) with specialized meshing and CAD programs (ANSA, SolidWorks), optimization tools (e.g. TOSCA, Isight) and in-house developed subroutines for modeling and description of strength and failure mechanisms of FRP (strength criteria, degradation, nonlinear material models, unit cell modeling) are applied.

Dr.-Ing.

Nicole Motsch-Eichmann

Manager Design of Composite Structures

Special expertise:
Design development and construction of fiber composite structures, finite element calculation (static), development of load introduction areas, experimental testing of components and parts, topology and shape optimization
Room: 58/234
Economic Sectors Applications (Examples)
Aerospace Fuselage and tail structures, high lift components
Automotive Body-in-white and under-carriage structures
Engineering Highly accelerated machine parts
Sports & Recreation Bicycle frames
Medical technology X-ray transparent implants, orthoses
Energy Pressure vessels, rotor shafts

Special Expertise

  • Validation of structural design and analysis by experimental testing
  • FE unit cell modell for prediction of stiffness and strength of 3D-reinforced laminates
  • Consideration of non-linear material behavior
  • Pressure vessel tool (from the winding process up to design)
  • Topology optimization
  • Multi-axial testing (up to 6 test cylinders)
  • Component testing under defined climatic conditions within the climatic chamber
  • Algorithm for fiber angle determination from CT-measurement
  • Expertise concerning load application in thick-walled components
  • Coupling of numerous monitoring options (optical 3D deformation, acoustic emission, in-situ CT, etc.)

Materials and Questions

Typical Materials

  • GFRP
  • CFRP
  • Thermoset, thermoplastic
  • Fiber reinforced injection molding material
  • 3D-printing material

Typical Questions

  • How can the load transfer into the continuous fiber reinforcement in hybrid components made of unidirectional fiber reinforcement and injection molding be realized?
  • Can wood components be significantly and eco-efficiently reinforced by fiber composites?
  • Do simulations have the potential to replace costly material and component testing for fiber composites?

Projects in this field

Publications from the IVW papers in this field of competence

  • Rieger, F.

    Entwicklung eines modifizierten Co-Curing-Verfahrens zur Herstellung von Komponenten aus kohlenstofffaserverstärktem Kunststoff

  • Helfrich, B.

    Untersuchungen des Reibwerteinflusses auf die Krafteinleitung in endloskohlenstofffaserverstärkte Polymerwerkstoffe

  • Bücker, M.

    Entwicklung einer Rotorglocke aus dickwandigen glasfaserverstärktem Kunststoff für einen Axialflussmotor mit Schwerpunkt der experimentellen und numerischen Betrachtung der Krafteinleitung

  • Heß, H.

    Experimentelle Charakterisierung und kontinuumsmechanische Simulation des Versagensverhaltens strukturell vernähter Faser-Kunststoff-Verbunde

  • Kaiser, M.

    Zur Anwendung von kohlenstofffaserverstärktem Kunststoff im Hochleistungsrahmenbau von Sportfahrrädern

  • Thielemann, K.

    Adaptive Strukturoptimierung von Faserkunststoffverbunden unter Berücksichtigung bionischer Aspekte

  • Roth, A. M.

    Strukturelles Nähen: Ein Verfahren zur Armierung von Krafteinleitungen für Sandwich-Strukturen aus Faser-Kunststoff-Verbund

  • Roth, Y.C.

    Beitrag zur rechnerischen Abschätzung des Scheiben-Elastizitäts-verhaltens in Dickenrichtung vernähter Faser-Kunststoff-Verbund-Laminate

  • Weiss, J.

    Strukturoptimierung auf Basis von bionischen Prinzipien: Topologieoptimierung zur Verbesserung des Schwingungsverhaltens von Bauteilen

  • Himmel, N.

    Faserkunststoffverbund-Bauweisen

  • Kuhn, M.

    Zur strukturmechanischen Auslegung unidirektional- und gewebeverstärkter Faserkunststoffverbund-Strukturen

  • Krebs, J.

    Design and Testing of a Composite Osteosynthesis Implant

  • Steffens, M.

    Zur Substitution metallischer Fahrzeug-Strukturbauteile durch innovative Faser-Kunststoff-Verbund-Bauweisen

    External Publicatios "Design of Composite Structures"

    Experimental Investigation on the In-Plane Creep Behavior of a Carbon-Fiber Sheet Molding Compound at Elevated Temperature at Different Stress States

    https://www.mdpi.com/1996-1944/13/11/2545

    Detection of Pin Failure in Carbon Fiber Composites Using the Electro-Mechanical Impedance Method

    https://www.mdpi.com/1424-8220/20/13/3732