Post-firemechanicalpropertiesofmarine sandwich composite … ·...

Post-fire mechanical properties of marine sandwich composite materials

Luan TRANVAN, Vincent LEGRAND,

Pascal CASARI, Frédéric JACQUEMIN,

Damaris ROSSETTI

vincent.legrand@univ-nantes.fr

Research Institute in Civil and Mechanical Engineering (France)

Team Mechanical States and Microstructure

Thermo-mechanical behaviours ofmetallic materials

Durability of composite materials

X-raydiffractometers

EnvironmentalSEM

Micro-tomograph

And also : • Speckle Interferometer • hygroth ermal climatic chamber• Tensile/fatigue test machine • Differential scanning calorimeter• Atomic force microscope • Micro tensile test machine ( SEM and XRD)

Tensile test machine for fibers coupled with wet

environment

Calorimetercone

Research Institute in Civil and Mechanical Engineering

- Team Mechanical States and Microstructure -

MultiscaleMultiscale analysisanalysis ofof heterogeneousheterogeneous materialsmaterials mechanicalmechanical statestate

Multiscale and multiphysics approach for the understanding ofmaterials behaviour and properties optimization

(experimental / modelling / simulation)

Post-fire mechanical properties of marine sandwich composite materials

Naval industry Sandwich composite materials :

- Thin skin reinforced with fibers

- Core constituted with light components

Walls andreinforcing elements

Durability of this type of materials subjected to a marine environment ?

Hygro-Thermo-Mechanical durability of composite materials

Fire resistance

Mechanical deformation

Moisture diffusion

OBJECTIVESOBJECTIVES

- Evaluation of the fire resistance of sandwich pannels

- Determination of the residual strength as a function of combustion timeand moisture rate

Post-fire mechanical properties of marine sandwich composite materials

Fire resistance

Post-fire mechanical properties of marine sandwich composite materials

Fire resistance

Post-fire residualstrength

Post-fire mechanical properties of marine sandwich composite materials

Fire resistance

Post-fire residualstrength

Thermo-mechanical properties

Post-fire mechanical properties of marine sandwich composite materials

ThankThank youyou for for youryour attentionattention