Finite element modelling and simulation for human injury prediction
- Marseille
- CDD
- Temps-plein
The Applied Biomechanics Laboratory (LBA) is particularly invested in the safety of motorcyclists and particularly in the design and evaluation of autonomous airbag vests with several DSR (French Road safety organization) projects (Promoto, REGAM, REGAM2, etc.) and an industrial research chair in partnership with the company In&Motion.
Scientific context
During Li Peng's thesis, a first database was created relating to the multiple possible impact configurations depending on the speed of the biker when entering a turn. Likewise, the LBA and the LMA, using multi-body methods, constructed a map of the fall conditions of motorcyclists. All of this data allows us to now have robust information on the initial conditions of impact of the motorcyclist on the barrier (speed, angle, body position, etc.). This variability in impact conditions made it possible to characterize the effectiveness of a motorcyclist restraint device
Objective of the project
The objective of the joint project is to integrate the barrier impact into the airbag evaluation processes of the REGAM project. This objective thus feeds two strategic issues:
- Quantify the combined effects of wearing an airbag vest and of a safety barrier with or without a motorcyclist screen to reduce the risk of injury during an accident - definition, analysis and choice of injury criteria in a reference case.
- Identify the area of protection (gain/limits) offered by regulatory barriers for different impact situations with the motorcyclist - sensitivity analyses.
To do this, it is a question of establishing a numerical modeling combining motorcyclist, motorcycle, airbag and restraint device. The influence and benefits of the airbag in terms of injury criteria can be studied for all events: fall to the ground following loss of control, impact on a barrier with and without a motorcyclist restraint device. From the combined work of the barrier project (Li Peng thesis) and the work in progress in the Regam project, typical accident scenarios will be retained so as to be representative of both the conditions of the fall (speed, orientation, situation of fall) but also the specificities of the kinetics of the fall with regard to the use of a motorcycle or even a scooter.
Expected work
Based on previous work carried out within the LBA (airbag) and the LBMC (restraint devices) and with a view to meeting the two objectives above, it will be a question of numerically modeling the impact of a motorcyclist with and without airbag on a restraint system, then conduct experimental plans.
Ultimately, the targeted knowledge contributions are:
- Study the modulation of exposure to the risk of injury depending on the type of safety barrier.
- Provide reference data on the vulnerability of a user during an impact against a security barrier.
- Highlight the protection gains offered by the airbag as well as their limits regarding certain impact conditions
Expected profile
The candidate (post-doctoral student / research engineer) must have a doctorate in the field with solid expertise in impact biomechanics and modeling of the human body. Expertise in the use of Lsdyna or Radioss calculation codes will be highly appreciated.RequirementsResearch Field Engineering » Mechanical engineering Education Level PhD or equivalentSkills/QualificationsThe candidate should be a PhD graduate with expertise in mechanics. Knowledge of finite element modeling is sought.Skills in design of experiments and experimental characterization of biological tissues are a plus.Soft skills : Autonomy, Teamwork, Analytical and critical thinking, Scientific communication, Co-operation.Languages FRENCH Level GoodLanguages ENGLISH Level GoodResearch Field Engineering » Mechanical engineering Years of Research Experience 1 - 4Additional InformationBenefitsSalary: The salary will depend on the experience of the candidate.Selection processCV in the first place, interview with candidates selected based on their CVsAdditional commentsThe location of the post-doctoral fellow may be either in Lyon (at LBMC) or in Marseille (at LBA), at the candidate's choice. As the project involves both laboratories, travel is planned to the second site.Work Location(s)Number of offers available 1 Company/Institute Université Gustave Eiffel Country France State/Province Auvergne-Rhône-Alpes City BRON Postal Code 69500 Street 25 avenue François Mitterrand GeofieldWhere to apply E-mailmichel.massenzio@univ-lyon1.frContact CityMarseille WebsiteStreet51 Boulevard Pierre Dramard Postal CodeF-13015 E-Mailmichel.massenzio@univ-lyon1.frdenis.brizard@univ-eiffel.frpierre-jean.arnoux@univ-eiffel.frmaxime.llari@univ-eiffel.frcatherine.masson@univ-eiffel.frSTATUS: EXPIRED
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