Mechanics of Interfaces and Adhesion

ABOUT THE RESEARCH GROUP

God made the bulk; the surface was invented by the devil …”- Wolfgang Pauli. We are devil's advocate trying to shape properties of layered materials by design of surfaces and interfaces between constituents. Can we make a layered material more compliant or stiff only by design of interfaces? Can the damage tolerance be improved? Can layered material detect own flaws? When material fail?…why? and how? Answers will allow safter, multifunctional, stronger, lighter or smart materials to be proposed.

RESEARCH INTERESTS

 

  • Dry adhesion: Inspired by the famous gecko feet. Adhesion control without using an actual adhesive but based on geometry and hierarchy to build suitable load carrying capacity and full bonding reversibility. 
  • Failure in layered materials: Brittle fracture, viscoelastic effects, environmental effects, machining of composite materials.
  • Design and tuning of material properties: Design of crack growth paths by local modifications of surfaces and geometry of components. The approach is directly related to impact of quality of surfaces, interfaces and geometry on load carrying capacities of materials and structures.
  • Crack onset and crack arrest: Material and geometrical nonlinearity effects pre- and post- failure, including crack front pinning-depinning transition studies.

APPLICATIONS

  • Adhesive bonding
  • Composite materials
  • Multimaterials through additive manufacturing
  • Soft materials and reversible adhesion
  • Interfaces under harsh environmental conditions

LABORATORY

The important part of activities is taking place in Laboratory for Mechanics and Physics of Solids located on the 5th floor of Navitas building. More details could be found under the link: eng.au.dk/en/research/laboratory-facilities/laboratory-for-mechanics-and-physics-of-solids/