Problem 1:
A lZ- beam AB with weight of 25 lb/ft, carries a box that weights W = 2050 lb. As shown in Figure 1,
the beam is supported by_ two hanger rods (1) and (2).
(a) Determine the normal stress, 62, in rod(2). This rod has a square cross section with
12-231 Solid Mechanics - Spring 2017
HW #1
Due Friday, January 27th, in class by the end of lecture
Assignments must be clear, neat, and easily readable. Show the steps that you used to obtain
the answer. Final answers should be underlined or boxed. Work
12-231 Solid Mechanics - Spring 2017
HW #3
Due Friday, February 10th, in class by the end of lecture
Assignments must be clear, neat, and easily readable. Show the steps that you used to obtain
the answer. Final answers should be underlined or boxed. Work
12-231 Solid Mechanics - Spring 2017
HW #2
Due Friday, February 3rd, in class by the end of lecture
Assignments must be clear, neat, and easily readable. Show the steps that you used to obtain
the answer. Final answers should be underlined or boxed. Work
Problem 1: -
In the structure shown in Figure 1, links BC and DE of lengthL and modulus of elasticity E are
attached by pins to a rigid bar AD. Link BC has cross-sectional area A 1 = 3A, and link DE has cross-
sectional area A 2 = 2A. Bar AD is vertical w
12-231 Solid Mechanics - Spring 2017
HW #4
Due Friday, February 17th, in class by the end of lecture
Assignments must be clear, neat, and easily readable. Show the steps that you used to obtain
the answer. Final answers should be underlined or boxed. Work
Rabblm] . I L
MMAunitommmmmdiuubjmm
axialloadsatthethreecrossaectioneasiliustratedhﬁl.
/ P3.4v6.Ifthe displacement at the right end. Up, cannotex
.LW wedSmmandthemaﬁmumaxialmintherodcannot
Wmmdmistheminimmnaﬂ ble diamelerot
entailedoyhndﬁcai rod? UteE-ﬁli
{\iéwl \
Prab.8.3-21.The mm ofplan: matpoionn the
surf»: oft rectangular bar subjected to pure bending in
thexyplnneisshawn ing. PBS-21. Determinathebending
moment M (in kip-in.) if the location oh! and the m
seconaldimusiomofthebarueasindiumding.
P8341.
12-231 Solid Mechanics - Spring 2017
HW #5
Due Friday, February 24th, in class by the end of lecture
Assignments must be clear, neat, and easily readable. Show the steps that you used to obtain
the answer. Final answers should be underlined or boxed. Work