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In all but a very few vehicles today crush or crumple zones are employed as a method to reduce energy transfer to the occupants in a crash. For the most part crumple zones form a structural part of the car such as frontal rail or rear bumper beams. In the early stages of development these crumple zones can be designed via a series of equations that take into account materials propertiesand geometrical features.
This assignment consists of the following three sections:
1- Using an envelope of 500 mm design a crumple zone that is capable of absorbing ~7,500 Joules of energy at 40 km/h. You can choose any geometrical shape and material to achieve this, but all choices have to be backed up by analytical equations. Use a crush distance of 75% of the original tube length (ie. 375 mm). Make sure if you use a strain-rate sensitivematerial you include this into your calculations.
2- Depending on your material choice do the following:
a. If you choose a metallic material for a single lobe of deformation show how stress and strain profiles and ultimately fracture (if occurs) progress through the deformation, show this via explanations, calculations and images
b. If you choose a composite material show how the fracture mechanisms/stress/strain work through lobe or ribbon formation; again show this via explanations, calculations and images
what is the engineering ethics course where to write about any engineering ethical case and discuss the ethical issue?
what is the engineering ethics case related to civil engineering with reference and discuss all the engineering ethics issues which covered the "Engineering etics concepte and cases?
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Ernst & young is currently providing support to various sectors. In this regards it was felt that if this report is able to document good practices currently being adopted or planned in ceramic sector.
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