Engineering Homework Help

The project is to build a protection box for electronic devices. I already chose plastic for outer case and charcoal Foam for inner. I need to write research about these two materials. Talking about why being chose, like how many strengths need to apply to plastic to absorb the shock. And for the foam, what kind of foam would be suitable for heating and cooling, please support by calculations, graphs, charts.

And need some links has similar idea to this project which is (protection box) and talk about advantages and disadvantages. For example, why should or should not use these materials that mentioned in the links to support the project.