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a linear spring k is to be designed to stop a 20-mg railroad car traveling at 8kmh within 400 mm after impact find the
determine the effective moment and vertical shear force that would be required to replicate the effect of the three bar
a 15 m tall utility pole is located at a 40deg bend in a set of power lines the tension in each line is 15 kn and due
the top figure shows a diagram of the bones and biceps muscle of a persons arm supporting a mass the lower figure shows
the jaws of the bolt cutter shown are connected by two links ab the cross-sectional area of each link is 750 mm2a what
1 concrete rocks and bone are strong in compression and are usually designed for compressive loading to test their
a bar consists of two portions bc and c d of the same material and of the same length l but of different cross sections
1 if the design load is 90 kn 20300 lbf what is the dead load and what is the intensity of the dead load in the light
if the kansas city building code specified that a floor structure must support a live load of 479 kpa 100 psf and if
the bar shown has a varying cross section and is fixed rigidly at both walls the crosssectional area of the narrower
an electronic scoreboard is to be installed in a large stadium due to the design of the roof structure the suspending
two small cubes of equal size but made of different materials are stacked as shown in the figure below so they just fit
a prototype bolt shaft assume a uniform cylinder that is to be loaded in tension is made of a stainless steel with a
derive a counterpart for the case of plane strain in the xz-plane of the compatibility equation shown in problem 415
a solid circular shaft of 40 mm diameter is to be replaced by a hollow circular tube if the outside diameter of the
the propeller of a wind generator is supported by a hollow circular shaft with 04 m outer radius and 03 m inner radius
the stepped shaft rotates at 120 rpm and has a 20 kw input at a 16 kw is taken off to operate machinery at b and the
two structural steel shafts with flanges forged on their ends are rigidly connected with a circle of bolts the shafts
the wrong size bolts were used to connect the flanges in problem 58 and when the torque is applied to flange b it
a strain gage is installed as shown on an aluminum soda can the cans radius is 13 in and its wall thickness is 0004 in
a rosette composed of three strain gages measures strain at a point on the surface of a flat sheet of annealed
for the state of stress given in problem 517 determinea the maximum shear stressb the normal stresses on the plane of
using the equations for stress transformationa confirm the angles that define the planes of maximum and minimum shear
consider the top part of the balloon to be half of a spherical pressure vessel what is the ratio of the normal stress
a solid circular rod of known radius is twisted in a testing machine with a known torque t only one strain gage is