Report 1: Material Selection for a Mid-Weight, 14 Laptop Case
29 January 2014
Since its introduction in the early 1980s, the laptop computer has become ubiq
We have advanced a long way in our goal of developing a systema7c method for
selec7ng materials for a given design.
Assuming that we have been able to select a specic material and shape for a given
In the last video we dened and derived various shape factors. These shape factors
allow us to compare, for a given material, the eciency arising from dierent shapes.
We saw, however, that shape and material are no
We have become quite adept at developing materials indices and using them to
select poten6al materials for our designs but we havent really thought about how to
deal, systema6cally, with the situa6on when we have mul6p
In the last videos we talked about the eect of shape on materials selec8on, looking
primarily on what already existed. For example, we saw that the maximum value of
the shape factor is dened by the availability of
We have now been introduced to the idea of using material property charts, and the
holes in material property space they reveal, as a guide for the produc9on of new
materials hybrid materials.
In this video we
So far we have been following the textbook chapter by chapter. Here we will skip
ahead to chapter 9 and return to chapters 7 and 8 later.
The goal now is to extend our understanding of materials selecAon to c
The last topic we will briey touch upon in this course is design and the environment.
This is of course becoming a predominant considera:on for design and as such tools
need to be developed to allow for us to ass
In the last video some the basic philosophy of design that is founda6onal to this
course was discussed.
This video will focus specically on materials. With the idea of maintaining a low-
resolu6on view of the
In the last video we introduced various dierent material proper5es.
In this video we will take these materials proper5es and think about how we can
display them in a way that can help us to iden5fy materials inte
(Look at all case studies in chapter 10 and Appendix E, Section 9)
Floor Joists in High Rise Buildings
Want to be able to support large loads on upper
floors but the weight of the building materials
themselves becomes a
Report #2 Laptop Case Material Design
Feb. 24, 2014
TA: Alban de Vaucorbeil
Though seemingly simple, a laptop case has to do many things. First, it needs to
MTRL 280: Design Project Report 3, 2014
Due: Monday March 17
The goal of this third report is to examine the role of shape, material structure and or
environment on materials selection. Depending on your exact project, you may focus
on one or more
MTRL 280: Design Project Report 2, 2014
Due: February 24
The goal of this second report is to perform an initial materials selection for your object.
Identify at least one function for your object and based on this function (or functions)
Material Covered 2014
Ashby Materials Selec9on in Mechanical Design 4th Edi9on
Chapter 1: Introduc9on
Chapter 2: Design Process
Chapter 3: Engineering Materials and Their Proper9es (you are not expected to know all of
Following from the last video where we introduced the dierent materials families,
the idea of materials proper8es and how these proper8es can be stored, this video
will look at some of the specic materials proper8es im