4.1 The percentage extension () after time t (s) under true stress o (MPa) of a...
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4.1 The percentage extension () after time t (s) under true stress o (MPa) of a homopolymer is given with the following equation. = 0.0660 + 1.5.10-6.t/3. e0.60t a) Plot o against at fixed times t = 1 s and 1000 s, and hence determine the nominal yield stress for each time. Hint: Calculate & values at 1s and 1000s for 5, 10, 15, 20, 25, and 30 MPa. You can use excel and tabulate values. b) Calculate an equivalent strain rate corresponding to each yield stress by dividing yield strain by time to yield. 4.1 The percentage extension () after time t (s) under true stress o (MPa) of a homopolymer is given with the following equation. = 0.0660 + 1.5.10-6.t/3. e0.60t a) Plot o against at fixed times t = 1 s and 1000 s, and hence determine the nominal yield stress for each time. Hint: Calculate & values at 1s and 1000s for 5, 10, 15, 20, 25, and 30 MPa. You can use excel and tabulate values. b) Calculate an equivalent strain rate corresponding to each yield stress by dividing yield strain by time to yield.
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Solutions Step 1 The percentage extension after time t s under true stress t MPa of a homopolymer is given with the following equation 0066t1510 6 t 1... View the full answer
Related Book For
Income Tax Fundamentals 2013
ISBN: 9781285586618
31st Edition
Authors: Gerald E. Whittenburg, Martha Altus Buller, Steven L Gill
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