ENG1001 Lecture Notes - Lecture 5: Minimax, List Of Materials Properties
30 May 2018
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Department
Course
Professor
Stiff%=%E
Strength%=%σy
Toughness%=%Kic
Lightness%=%need%lower%density
=%to%create%products%that%perform%their%function%effectively,%safely,%and%
at%acceptable%cost
Analysing)materials
Eg.%Young's%mod
Break%up%into%families
Material%properties:
Limit%performance
Usually%combination%is%important
Materials%Property%Chart
Use%to%narrow%down%selection
Methodology)for)materials)selection
Translation of%design%requirements%into%a%material%specification
Function:%what%does%it%actually%do?a.
Constraints:%what%essential%conditions%must%be%met?b.
Objectives:%what%is%to%be%max/min?c.
Free%variables:%which%design%vars%are%free?d.
Obtain:
Screening%criteria%(go/no-go%criteria)i.
Ranking%criteria%(ordering%of%materials%that%are%"go")ii.
e.
1.
Screening out%of%materials%that%fail%constraints2.
Ranking by%ability%to%meet%objectives;%material%indices3.
Search%for%supporting info%for%promising%candidates4.
Stiffness)performance)index
Week$5:$Materials$Design$&$Index
Friday,%18%August%2017
16:31
