May 4, 2016 - « Multimaterial Lightweighting » SAE webinar Nicolas VALLINO - Research & Development
Lighter and Safer : a challenge
Research & Development « Multimaterial lightweighting » SAE webinar
Nicolas VALLINO May 4, 2016
May 4, 2016 - « Multimaterial Lightweighting » SAE webinar Nicolas VALLINO - Research & Development 2
Lighter … why? 01
May 4, 2016 - « Multimaterial Lightweighting » SAE webinar Nicolas VALLINO - Research & Development
Worldwide convergence of CO2 objectives
3
May 4, 2016 - « Multimaterial Lightweighting » SAE webinar Nicolas VALLINO - Research & Development
Main paths for automotive CO2 reduction
4
More efficient power train 10% fuel consumption
- 13g CO2
Vehicle weight -110kg (1 IC)
saving ~10g CO2 Road resistance
- 10% saving ~2g CO2
Aerodynamics SCx 5dm²
saving ~2g CO2
EE management Energy recovery,
kinetic and thermal
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Safer 02
May 4, 2016 - « Multimaterial Lightweighting » SAE webinar Nicolas VALLINO - Research & Development
Towards light weight vehicles
Security: crash test and increasing passive safety
Ride confort
Convenience, increased car size
Increasing vehicle size
Increasing wheels size
Mix powertrain : Gasoline / Diesel
More equipments (radio, ABS-ESP, air conditioning syst, elec. seats..)
Acoustic performance/ NVH & noise insulation
6
European vehicule mass evolution
Year 70 80 90 00
750
850
950
1050
1150
1250
ANNEES
POIDS(Kg)
70 80 90 00
750
850
950
1050
1150
1250
ANNEES
POIDS(Kg)
Weight
(kg)
May 4, 2016 - « Multimaterial Lightweighting » SAE webinar Nicolas VALLINO - Research & Development
Tougher standards, aligned on the most severe one
7
Continuous need to anticipate the
evolutions of regulation and
consumerist protocols
May 4, 2016 - « Multimaterial Lightweighting » SAE webinar Nicolas VALLINO - Research & Development
The Challenge
8
Reduce CO2 emissions
reduce weight Increase passive safety
tends to increase weight
Where is the optimal solution ?
May 4, 2016 - « Multimaterial Lightweighting » SAE webinar Nicolas VALLINO - Research & Development
2020 MATERIAL TREND
9
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The challenge of numerical simulation 03
May 4, 2016 - « Multimaterial Lightweighting » SAE webinar Nicolas VALLINO - Research & Development
Virtual engineering tools for material and process simulation
11
Process modelling
Modelling of NVH, crash, fatigue/damage tolerance
Material & process choice
Physical behaviour
/!\ Testing
Adapted CAD tools Non linear
Failure Strain-rate sensitive
Anisotropy
Failure
Strain-rate sensitive
Non linear
Anisotropy
May 4, 2016 - « Multimaterial Lightweighting » SAE webinar Nicolas VALLINO - Research & Development
Developping cooperations and partnerships
12
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Thank you for your attention
