Homework #3

Due Date: 15th Mar, 2011(Tuesday)

(Turn in your assignment in the mailbox of S581 outside the ME general office)

The solutions must be written on single-side A4 papers only.

HW 3-Problem #1A loading crane consisting of a steel girder ABC supported by a cable BD is subject to a load P; the cable has effective cross-sectional area A=481mm2 ; the dimensions of the crane are H=1.6m, L1=3.0m, L2=1.5m. (1) if the load P=32KN, what’s the average tensile stress in the cable? (2) if the cable stretches by 5.1mm, what is the average strain?

HW 3-Problem #2

HW 3-Problem #3

HW 3-Problem #4

HW 3-Problem #5

HW 3-Problem #6

HW 3-Problem #7