lecture02

# lecture02 - LECTURE2 Notes prepared by References(01(02...

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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

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