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Stress & Strain Lab

# Stress & Strain Lab - 4 Stress vs Strain Lab...

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Stress vs. Strain Lab Introduction ........................................................................................................................................................................................................................................................ 2 Data .................................................................................................................................................................................................................................................................... 3 Calculations & Analysis ....................................................................................................................................................................................................................................... 4 Conclusion .......................................................................................................................................................................................................................................................... 5 4

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Introduction Objectives... - The objective of this lab is to demonstrate the relationship between stress and strain with the use of three different materials. Other objectives include graphing stress and then interpreting the graph results and discussing the differences in mechanical properties of materials. Next, procedures should be developed for testing tensile strength in common materials. Finally, the modulus or different materials should be calculated. Definitons... - Stress: External force applied per unit area. - Stain: Fractional change in dimension due to stress. Useful Equations... - Strain= Δ L/L - Stress=F/A - Young's Modulus=F/A=Y( Δ L/L) Procedure... 1. Set up two ring stands by connecting the rods to clamps attached to the lab table. 2. Then connect another rod between the two ring stands using smaller connector clamps (this will create a stable base to hang materials from).
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Stress & Strain Lab - 4 Stress vs Strain Lab...

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