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scan0033 - 6-8 Wizards& Tools ”mellow Mann-«w MW Mm...

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Unformatted text preview: 6-8 Wizards & Tools WWWWWWWWWWMMWWUmentmowmswemw ”mellow Mann-«w. MW Mm m.m.-v.w.mvmmww.‘ 20. Solution > Equivalent Stress 21. Edges > Show Elements ‘3‘; Insert Structural Loads 09”"? “31’ “TEfiLW mi i g] Project A g Equivalent Stress " I t5 t -‘ ~~ . ,, user uppor 5 fl Model ' Type: Equivalent (VDHAMiSESB Stress m" Salve 13% Sohd Time: 1 stapes? 1:44 PM & Mesh - - f3] Static Structural “Q Analysis Settings (an. Pressure a ”fig Solution - «iii Solution Information 44% Equivalent Stress u.% Total Deformatio =9 «Q Stress Tool dfii Safety F. It: cream. in: age-aside I . .- :- '- :- . J View Report 1 15.87 Max 1133.65 91 ‘425 79234 sassz .: r g? Insert Structural Results E -_;_ fl Geometry Unit: MPa m i l l l l l Select result items to view graphical and tabular data. Use the Result toolbar to work With the contoured display. Use the Timeline window toolbar to animate the result. Use the mouse to directly edit the legend. in the legend context menu, assign a name to a customized legend to reuse it an other results, Figure 6-15 von Mises stress distribution. For ductile materials under static loading the initial yielding may be predicted by comparing the Maximum Equivalent Stress (von Mises Stress) in the part with the Tensile Yield Strength observed during testing of a tensile sample of the part material when the tensile sample yielded. The Equivalent Stress method is generally considered the most appropriate approach for ductile materials under static loading. The Equivalent Stress or von Mises Stress is based on the observation that the hydrostatic component of a general stress state does not influence yielding in a ductile material and it combines the various stresses in a generally complex stress situation into a single quantity as follows: The stress tool wizard automatically inserts the Safety Factor computation and we added the Safety Margin. If Sy is the material Yield Strength, the Factor of Safety and the Margin of Safety are defined as: F =—y M‘ymFg-l 22. Click Stress Tool, then Safety Factor, then Safety Margin. We see the following in the details boxes. Minimum values of these are the significant quantities. ...
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