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Unformatted text preview: Pounds A = Area Square inches Strain = total change in dimension divided by the original dimension = /L Where: = Strain in/in = Deflection (Change in length) inches L = Original length inches Modulus of Elasticity = the ratio where strain is proportional to stress E = s/ Where: E = Modulus of Elasticity PSI s = Stress/Strength PSI = Strain in/in Mikes special equation: = s / E = / L 1. Circle the unknown (What are you solving for?) 2. Underline the knowns (What values can you extract from the problem statement?) 3. Use only two expressions (ex: = s/E, = /L, or s/E = /L) Safety Factor = failure stress divided by the allowable stress S.F. = s failure /s allowed Where: s failure = Stress that will cause failure PSI s allowed = Stress allowed in application PSI...
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This note was uploaded on 01/05/2011 for the course DRAFTING A ETC 1250 taught by Professor Tomlinson during the Spring '10 term at PascoHernando Community College.
 Spring '10
 Tomlinson

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