MP4702 Advanced Materials and Materials Selection.
Learning Outcome 1. Able to communicate effectively on material selection with material scientists.
Learning Outcome 2. Able to understand the implications of different modes of material failure.
Learning Outcome 3. To understand the effects of composition and heat treatment on the properties of different types of material.
Learning Outcome 4. To select materials to minimise the likelihood of component failure.
Problem 1
Intermach Engineering Ltd is a high-quality manufacturer of precision machined components, utilising leading edge CNC machining technologies. Intermach Engineering Ltd want their designer engineers to select a new material for crank shaft used in the newer version of the Ford company four wheelers.
You will need to decide your objective, constraints and find out the equations for the parts selected. You will need to translate the problem, derive the performance index or indexes, select some screening constraint and select the actual material graphically.
You have to document the whole selection process.
[Hint 1]: You need to select any two parts of the crank shaft and use corresponding equations for the selected parts to derive the material index. You will have to decide your own dimensions for the selected parts and the constraints.
Problem 2
You have been asked to design a beam structure for the construction of the railway overhead platform in Nottingham Railway Station. The new overhead platform needs to withstand the moving traffic, pedestrian movements, heavy loaded trucks between the Station street and Nottingham Railway Station. The designers need to consider lightweight materials with maximum strength to weight ratio and build the structure as cheap as possible. Length, L and stiffness, S of the beam is fixed by the designer. The beam must deflect through a maximum safe displacement, ?max without failure.
Use CES EduPack to create a graph representing the material index and identify the region of the chart with the cheapest materials for the beam.
You will need to decide extra constraints and find out the equations for a beam. You will need to decide your objective and to compare the results with real world materials. You will need to translate the problem, derive the performance index or indexes, select some screening constraint and select the actual material graphically.
You have to document the whole selection process.