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1. In the three-hinge arch shown, the diameter of the arch is 3 m
with center directly below C and 3 m to right of A. Point B is 0.8 m above A, and
point D is 0.4 m horizontally from A. P1 = 3 kN, 1.0 m to right of A, and P2 =
5.2 kN, 0.6 m above B.
1. Calculate the reaction at A, in kN.
2. Calculate the reaction at B, in kN.
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- (2) lubäi The difference between shear strain and linear strain Linear Strain is change in length/original length while shear strain is the angle of deformation linear strain and shear strain are the same and equal to the change in length / original O length None O linear strain and shear strain are the same and equal to the change in angle under shear force (2) ibäi A concentrated load is one which acts at a point on a beam O varies uniformly over the whole length of a beamShow full work. 3-150 In an article on tire maintenance, it is stated that tires lose air over time, and pressure losses as high as 90 kPa (13 psi) per year are measured. The article recommends checking tire pressure at least once a month to avoid low tire pressure that hurts fuel efficiency and causes uneven thread wear on tires. Taking the beginning tire pressure to be 220 kPa (gage) and the atmospheric pressure to be 100 kPa, determine the fraction of air that can be lost from a tire per year.The homogeneous bar ABC is supported by a pin at C and a cable that runs from A to B around the frictionless pulley at D. Find the stress (in psi) in the cable if its diameter is d = 0.57 in and the weight of the bar is 5305 lb. Round off the final answer to three decimal places.
- The beam is supported by rods AB and CD that have different cross-sectional areas. The area of rod AB is AAB = 10 mm² .The area of rod CD is Acp = 8.25 mm². B F₁ Values for the figure are given in the following table. Note the figure may not be to scale. Variable Value F₁ d₁ d₂ NAB= 5050 N 3.25 mm 0.5 mm a. Determine the magnitude of the normal internal force in rod CD, NCD. b. Determine the magnitude of the normal internal force in rod AB, NAB. c. Determine the normal stress in rod CD, OCD. d. Determine the normal stress in rod AB, O AB. Round your final answers to 3 significant digits/figures. NCD = N N* O l 33% D 17:51 MENG250 - Pract... / 2–58. Express each of the three forces acting on the bracket in Cartesian vector form with respect to the x and y axes. Determine the magnitude and direction 0 of F, so that the resultant force is directed along the positive x' axis and has a magnitude of FR = 600 N. y F 30° F = 350 N F3 = 100 N 30° 8During the power stroke of an internal combustion engine, the 330 lb pressure force pushes the piston down its cylinder. Determine the components of that force in the directions along and perpendicular to the connecting rod AB, В Piston Cylinder 15° Crankshaft (Express your answers using three significant figures.) F, = ]lb F, = | lb
- Determine the equivalent state of stress on an element at the same point that represents the maximum in-plane shear stress at the point.Show complete solution. Draw FBDFor the problem shown, determine the magnitude of the force in member EF given that x = 2.3 m, y = 1.1 m, and w1 = 565 N/m. Note that members DC and EF are two force members. Write your answer in units of N to one decimal place. w1 N/m y m 3 m X 3,075.3 D E Correct Answer: 3,241.9 x m с F B 3 m y m
- 3.6 m R 1m 1.2 m 2.5 m Oa 3m The banner has a density of 670 kg/m and is 6mm-thick. The pipe has the linear weight of 9N/m. Which of the following completes the force diagram? A. Foy, Foz, Moy, Moz B. Fox. Foy, F oz, Mox, Moy, Moz C. Fox, Foy, Foz, Moy, Moz D. Foy, Foz, Mox, Moy, Moz Р 1.25 m 1.5 m WOR 1.25m Wanner Fo WpQ 3.6 m Oo 2.5 m R 1 mA circular bar 4 m long with an external radius of 25 mm is solid over half its length and bored to an internal radius of 12 mm over the other half. If a torque of 120 N.m is applied at the center of the shaft, the two ends being fixed, determine the maximum shear stress set up in the surface of the shaft and the work done by the torque in producing this stress. G = 80 GN/m2. Ans: [2.51 MN/m2; 0.151 N.m]A cross-section of a beam is shown in Figure Q2. If the shear force in this section is V = 281 KN, determine the value and the location of the maximum shear stress in the section. In Figure Q2, a = 72 mm and the origin of the coordinate system is at centroid of the cross section. Z A a AY 2a O 4a Figure Q2 J.L B 3a a