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.

Cracks...a new perspective

In this specimen soft adhesive was used to bond the adherends to expose Poisson ratio effect leading to the edge effects.

We have a fresh look on fracture and interfaces in which the 'cracks' or more likely discontinuities are required for the material to increase its properties and functionality. For that we are rooting to the known principles and enrich them with original physical statement, numerical simulations and experimental approaches.

 

RESEARCH DIRECTIONS

  • Dry adhesion
  • Failure in layered materials: brittle fracture, viscoelastic effects, environmental effects
  • Design and tuning of material properties
  • Material and geometrical nonlinearity effects pre and post failure
  • Damage mechanisms

 

APPLICATIONS

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

 

TOOLS USED FOR ANALYSIS

  • Experimental mechanics
  • Structural mechanics
  • Physical modelling
  • Continuum and Fracture mechanics
  • Finite Element Analysis

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/