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Scaling of human injury tolerances for vertical impact loads induced

Geplaatst 31 dec. 2022
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WHAT WILL BE YOUR ROLE?

In modern warfare mines and Improvised Explosive Devices (IED’s) pose a serious threat against the occupants of military vehicles. The shock caused by an explosion under a vehicle, a so-called Underbelly Blast (UBB), has a high potential for significantly injuring the vehicle occupants.

The NATO standard STANAG 4569 requires that the injury risk of these occupants is assessed using a full scale vehicle test. During such test a 50th percentile Hybrid III Anthropomorphic Test Device (50th HIII) is used to simulate an average human male inside the vehicle.

The 50th HIII represents the 50th percentile male occupant and was originally developed for automotive frontal crash conditions. However, the main loading direction of an UBB is vertical. Successive NATO research task groups have developed injury criteria and tolerances for the 50th HIII under these vertical load conditions using automotive and aviation references.

However, modern military vehicles, especially troop carriers, transport a wide range of passengers varying from small females to large males. This even includes civilians. Because of this, there is a demand for injury risk predictions for non-50th percentile male occupants.

In this assignment you will be developing the injury tolerances for the 5th and 95th percentile HIII. To do so, you will be investigating the scaling techniques that can be used to scale the injury tolerances. The bases for the scaling techniques is linked to the scaling underlying the FMVSS208 standard (NHTSA standard crash assessment) and previously applied tolerances for life boats. Your focus will be on the lower leg, pelvis, lumbar and cervical spine.

You will also be evaluating and validating your results in relation to criteria and tolerances for real humans. This will be based on injury criteria available in literature and from numerical human body models.

During this project you will be collaborating with biomechanics and blast experts from TNO and from the Medical College of Wisconsin.

HOW DO YOU WANT TO CONTRIBUTE TO TOMORROW'S WORLD? HOW BIG CAN YOUR IMPACT BE? COME AND WORK AT TNO AND ENVISION IT.

WHAT WE EXPECT FROM YOU

  • You are in the final phase of obtaining your Msc. degree.
  • You are available for an internship of at least 6 months.
  • You have a solid understanding of mathematics and biomechanics.
  • You are an analytical and innovative thinker.
  • Good communication skills in English are expected.

WHAT YOU’LL GET IN RETURN

You want to work on the precursor of your career; a work placement gives you an opportunity to take a good look at your prospective future employer. TNO goes a step further. It’s not just looking that interests us; you and your knowledge are essential to our innovation. That’s why we attach a great deal of value to your personal and professional development. You will, of course, be properly supervised during your work placement and be given the scope for you to get the best out of yourself. Naturally, we provide suitable work placement compensation.

TNO AS AN EMPLOYER

At TNO, we innovate for a healthier, safer and more sustainable life. And for a strong economy. Since 1932, we have been making knowledge and technology available for the common good. We find each other in wonder and ingenuity. We are driven to push boundaries. There is all the space and support for your talent and ambition. You work with people who will challenge you: who inspire you and want to learn from you. Our state-of-the-art facilities are there to realize your vision. What you do at TNO matters: impact makes the difference.

Innovation with purpose: that is what TNO stands for. We develop knowledge not for its own sake, but for practical application.
TNO connects people and knowledge to create innovations that boost the competitive strength of industry and the well-being of society in a sustainable way.
Do you want to do ground-breaking work in multidisciplinary projects, seek out new knowledge? Do you want...


Innovation with purpose: that is what TNO stands for. We develop knowledge not for its own sake, but for practical application.

TNO connects people and knowledge to create innovations that boost the competitive strength of industry and the well-being of society in a sustainable way.

Do you want to do ground-breaking work in multidisciplinary projects, seek out new knowledge? Do you want to help customers with innovative, practical and smart solutions? Are you ambitious and energetic, a thinker and a doer? Then check out our possibilities.

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