compcrash Characterisation of crash behaviour of composites towards future lightweight road vehicles Ph.D. Student at Swerea SICOMP – Structural design [email protected] Thomas Bru 1 | Energimyndigheten , Thomas Bru | 9 Oct 2014
Compcrash Characterisation of crash behaviour of composites towards future lightweight road vehicles Ph.D. Student at Swerea SICOMP – Structural design.
Dec 21, 2015
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compcrashCharacterisation of crash behaviour of composites towards future lightweight road vehicles
Ph.D. Student at Swerea SICOMP – Structural [email protected]
Thomas Bru
1 | Energimyndigheten , Thomas Bru | 9 Oct 2014
Overview
• Starting date: Oct 2011 (for me Oct 2013)• Finish date: May 2016• EM project number: 34181-1• Budget: 4.5 MSEK
2 | Energimyndigheten , Thomas Bru | 9 Oct 2014
Characterisation of crash behaviour of composites towards future lightweight road vehicles
Composites applications
787 composite fuselage
Aerospace
Column Repair
Sport
Construction
Light
High performance
Corrosion resistance
3 | Energimyndigheten , Thomas Bru | 9 Oct 2014
Composites applications
4 | Energimyndigheten , Thomas Bru | 9 Oct 2014
Aston Martin V12 Vanquish
after Hill (2003)
Automotive
Light
High performance
Corrosion resistance
Hill (2003). Adhesively bonded structural composites for Aston Martin vehicles. 3rd Annual SPE Automotive Composites Conference, Troy, MI.
Cost
Manufacturing
Today, huge interest for introducing composite in passenger cars
Crashworthiness requirements
Failure mechanisms within the composite material (e.g. fibre failure)
Requirement: constant deceleration of the car
Full scale crash test
Lab scale
Reliable simulationPhysically based material model
+Structural consideration
Energy Absorption
5 | Energimyndigheten , Thomas Bru | 9 Oct 2014
Light
High performance
Corrosion resistance
Crashworthiness
Grauers et al. (2014). Energy absorption and damage mechanisms in progressive crushing of corrugated NCF laminates: Fractographic analysis. Composite Structures;110:110–117.
Grauers et al. (2014)
Physically-based material model for crash simulation
Physically-basedmaterial model
INPUTS
Failure mechanisms within the material
Accurate mechanical properties and behaviour of the material
OUTPUTS
Energy absorption capability of the material under different loading conditions
+ structural design
6 | Energimyndigheten , Thomas Bru | 9 Oct 2014
phenomenological approach, based on experimental observations
Summary
• Huge interest for the introducing composites into cars
• Car industry needs reliable simulation for crash of composites• Experimental material characterisation is required for the
development and validation of a material models
Make vehicle lighter,
safer, and more Fuel-
Efficient
Light
High performance
Corrosion resistance
Crashworthiness
7 | Energimyndigheten , Thomas Bru | 9 Oct 2014
Vi arbetar på vetenskaplig grund för att skapa industrinytta.www.swerea.se
8 | Energimyndigheten , Thomas Bru | 9 Oct 2014
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