02-07ChapGere.0013

02-07ChapGere.0013 - 172 A-PDF Axially Loaded : Purchase...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
Solution 2.12-2 Bar between rigid supports 172 CHAPTER 2 Axially Loaded Members d 1 5 20mm d 2 5 25mm s Y 5 250MPa D ETERMINE THE PLASTIC LOAD P P : At the plastic load, all parts of the bar are stressed to the yield stress. Point C : F AC 5 s Y A 1 F CB 5 s Y A 2 P 5 F AC 1 F CB P P 5 s Y A 1 1 s Y A 2 5 s Y ( A 1 1 A 2 ) S UBSTITUTE NUMERICAL VALUES : 5 201 kN 5 (250 MPa) ¢ p 4 [(20 mm) 2 1 (25 mm) 2 ] P P 5 (250 MPa) ¢ p 4 ( d 1 2 1 d 2 2 ) d 2 d 1 L 2 L 2 A B C P P F CB F AC Problem 2.12-3 A horizontal rigid bar AB supporting a load P is hung from five symmetrically placed wires, each of cross-sectional area A (see figure). The wires are fastened to a curved surface of radius R . (a) Determine the plastic load P P if the material of the wires is elastoplastic with yield stress s Y . (b) How is P P changed if bar AB is flexible instead of rigid?
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.
Ask a homework question - tutors are online