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Typical Stress Strain Graph for Aluminum with Typical Values
SMI Field Trip Pics are posted above on Nav-Bar Report Formats are discussed here > Laboratory Report Format If you have any questions about how graphs should look take a look at this spreadsheet, it should look familiar to some of you .... ...(right-click and Save-As) Come back for questions and discussion on your labs ! Metals Lab Reports 1. Follow the Analysis and Results section of your book (pg. 317-318) to determine the strength and stiffness properties. You may not be able to calculate all of them, but do as many as you can. 2. Based on you "good" aluminum specimens, determine the grade of aluminum that the specimen is (most likely) base on statistical evidence. Assume the population mean is given in your book (table 4.5) and the population standard deviation is given as 5% of that mean value. Is there one grade that stands out as the best possibility ? 3. Comparing good and damaged aluminum specimens, can we say statistically, with 95% probability that the specimens are different with respect to: a) proportional limit b) yield strength c) secant modulus at 0.2% strain d) tangent modulus at low strain 4. Make a table of measured cross sections and best-estimate steel sections 5. Follow the book, (pg. 317-318) with respect to the rebar tests as well. Aluminum Tensile Test Spreadsheets Listed below are your spreadsheets generated from the tensile tests. Please right-click and save-as your data. We'll summarize data as well A=early lab B=late lab dam = damaged specimen undam = undamaged specimen Rebar Tensile Test Spreadsheets
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