Question

*Please help!*

Link BD is 6.4 mm thick and is made of a steel with a 543 MPa ultimate strength in tension. What should be its width, w, in mm if the structure shown is being designed to support a 17.8 kN load with a factor of safety of 2.7? LAB=150 mm and LBC=131 mm. Note: Your answer should be given in the requested units and be to 1 decimal place. Suggestion: Work out the problem symbolically and then plug in the numbers. This will help with the next problem. D D Front view w t А B B Side view LAB LBC A MM B Top view

Answer 1

Given и LAB = 0.15mm LBC 20.131 mm A Epo B Pa 17.8kN esta 6.4mm Tuta 543 MPa fos: 2.7 for ABC Mow. FBD FBD Eveitical no Rr Po for the 47 to Rd Ret FBD 2178kW

E Mc so Poll Betlan) FBOT LBe to FBD 2 PallBCHLAR) LBC FBD for Link BD FBD. stress in Link BD TBD = FBD wt FBD < for design OBD s but tos FBD rit wt. fos PALL Be + LAB) out LBC awt tos 5 ta Px (LBC tlap) stos LBC xworut

29.66 mm Now putting (0:15+0:131) 2.7 0.131x10²x6.4x543 values 17.87010 t B E