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Unformatted text preview: 1 2 Sy Nylon 2 E Nylon . U RNylon 1.8 MN m . m 3 = U RHDPE 1 2 Sy HDPE 2 E HDPE . U RHDPE 0.16 MN m . m 3 = U RPTFE 1 2 Sy PTFE 2 E PTFE . U RPTFE 0.04 MN m . m 3 = Even though the data is approximate, the Nylon 101 clearly has the largest modulus of resilience. 4. Using equation (28) and the data above, determine the modulus of toughness. U TNylon 1 2 Sy Nylon Sut Nylon . f Nylon . U TNylon 37 MN m . m 3 = U THDPE 1 2 Sy HDPE Sut HDPE . f HDPE . U THDPE 57 MN m . m 3 = U TPTFE 1 2 Sy PTFE Sut PTFE . f PTFE . U TPTFE 5 MN m . m 3 = Even though the data is approximate, the HDPE has the largest modulus of toughness. 5. The Nylon 101 has the steepest slope in the (approximately) elastic range and is, therefore, the stiffest of the three materials. . P 0205.mcd...
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This note was uploaded on 04/26/2010 for the course MAE 3242 taught by Professor N/a during the Spring '10 term at University of TexasTyler.
 Spring '10
 N/A
 Machine Design

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