A large displacement orthotropic viscoelastic model for manufacturing-induced distortions in Fibre Metal Laminates

Distortions and residual stresses are predicted in Fibre Metal Laminates (FMLs) under large deformations. A new modelling procedure is presented for small and large deformation analysis of thermo-viscoelastic problems of orthotropic materials. The material model is implemented in a finite element package which can be used for cure and/or...

Cycling fiber metal laminates: Considerations, test setup and results

The development of fiber metal laminates to multi-functional materials by embedding heater elements in the laminate extends their field of application. Fiber metal laminates with embedded heater elements are likely to be used for the de- and anti-icing of leading edges in aircraft as they combine structural and heating functions. Hence, those...

Thermal cycling fiber metal laminates: Considerations, test setup and results

The development of fiber metal laminates to multi-functional materials by embedding heater elements in the laminate extends their field of application. Fiber metal laminates with embedded heater elements are likely to be used for the de- and anti-icing of leading edges in aircraft as they combine structural and heating functions. Hence, those...

Strain characterization of embedded aerospace smart materials using shearography

The development of smart materials for embedding in aerospace composites provides enhanced functionality for future aircraft structures. Critical flight conditions like icing of the leading edges can affect the aircraft functionality and controllability. Hence, anti-icing and de-icing capabilities are used. In case of leading edges made of fibre...

Crack closure in Glare

The fatigue life of an aircraft is dependent on the loads of the aircraft service spectrum. Due to the variable nature of the load spectrum, fatigue crack growth is accelerated and decelerated by interaction effects. Interaction effects, like crack closure, make an accurate prediction of the fatigue life challenging. The material GLARE, a...