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4. True-False, You must justify your answer for full credit.
a) Dislocations can appear in amorphous materials.
b) A Voight model fully describes the mechanical behavior of most real polymers.
c) The compliance of a testing frame is only important when one is testing a really compliant material.
d) xx = * xx
e) Hole-drilling is a good way to fix a crack, because the hole adds compressive stresses to the crack tip.
True or false questions with explanations relating to amorphous metals, polymers and material strengths.