Questions
Quick questions
You should be able to answer these questions without too much difficulty after studying this TLP. If not, then you should go through it again!
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Looking at the specific modulus - specific strength map for biomaterials, which material gives the greatest maximum elastic strain energy per unit mass?
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For which engineering application does the best steel perform better than the best aluminium alloy?
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Why is it favourable for viscid silk to have a high value of the merit index ?
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Looking at the materials-selection chart toughness-Young's modulus for biomaterials, which of the listed biomaterials has the greatest fracture toughness, Kc?
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Why would diamond not be used as a material that gives the minimum extension for loading a beam of given mass in tension?
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Which of the listed commonly used engineering materials will show the minimum deflection on bending a beam of given mass with the cross-sectional area of the beam as the free parameter (i.e. which material has the maximum value)?
Deeper questions
The following questions require some thought and reaching the answer may require you to think beyond the contents of this TLP.
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Derive the merit index for the maximum elastic strain energy per unit volume .
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(...continued from previous question) Now derive the merit index for the maximum elastic strain energy per unit mass .