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Unformatted text preview: LECTURE 2 Notes prepared by : (01) Mehmet Be ş ir Çalkap (02) Merve Okatan References : Chapter 1 of Juvinall Chapters 2 and 3 of Bisplinghoff et al. Solving a Design Problem 1) Determine the applied loading Service/operating loads from full scale experiments, service failure loads 2) Load Analysis using FBD+Laws; determine+reactions+internal forces Æ critical sections 3) Stress analysis Æ critical points 4) Find the critical locations 5) Apply failure criterion Juvinall recommends that problem solutions be organized using the following seven steps (and that we will follow in the class): 1) State briefly what is known; Known or Given 2) State concisely what is to be determined; Find 3) Schematic and the given data; • Sketch the system + free body diagram • Critical points and dimensions on the figure • Record all material data and other parameters 4) Decisions – record your choices/selections (used in design problems mostly) 5) ASSUMPTIONS ; how you model the problem, list all idealizations to reduce the problem to a manageable problem 6) Analysis • Work with the equations as long as possible before substituting numbers • Do additional FBD’s • Check units • Consider magnitudes and numerical values and signs if they seem reasonable...
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This note was uploaded on 02/28/2011 for the course AEE 361 taught by Professor Daglas during the Spring '11 term at College of E&ME, NUST.
- Spring '11