A vinyl [E = 2.85 GPa; v = 0.41] block with width b = 50 mm, depth d = 100 mm, and height h = 270 mm rests on a smooth rigid base. A load P is applied to a rigid plate that rests on top of the block. Calculate the change in the depth dimension d of the block after a load of P = 100 kN is applied. Rigid plate Answer: Ad i P Width Depth d b eTextbook and Media Save for Later Height h Rigid base mm Attempts: 0 of 5 used Submit Answer

A vinyl [E = 2.85 GPa; v = 0.41] block with width b = 50 mm, depth d = 100 mm, and height h = 270 mm rests on a smooth rigid base. A load P is applied to a rigid plate that rests on top of the block. Calculate the change in the depth dimension d of the block after a load of P = 100 kN is applied. Rigid plate Answer: Ad i P Width Depth d b eTextbook and Media Save for Later Height h Rigid base mm Attempts: 0 of 5 used Submit Answer

Mechanics of Materials (MindTap Course List)

9th Edition

ISBN:9781337093347

Author:Barry J. Goodno, James M. Gere

Publisher:Barry J. Goodno, James M. Gere

Chapter1: Tension, Compression, And Shear

Section: Chapter Questions

Problem 1.5.2P: A steel riser pipe hangs from a drill rig located offshore in deep water (see figure). (a) What is...

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A steel riser pipe hangs from a drill rig located offshore in deep water (see figure). (a) What is the greatest length (meters) it can have without breaking if the pipe is suspended in the air and the ultimate strength (or breaking strength) is 550 MPa? (b) If the same riser pipe hangs from a drill rig at sea, what is the greatest length? (Obtain the weight densities of steel and sea water from Table M, Appendix I. Neglect the effect of buoyant foam casings on the pipe.)
Find the thickness of a metal needed of the semi-spherical end of cylinder vessel 0.70 meter in diameter to an internal pressure of 2.70 N/mm2. The material is mild steel and tensile is 69 N/mm2
we want to build a single-rail overhead crane in the workshop.when the load reaches the extreme point, it is 1800 mm away. the rail-shaped profile iron of the crane is connected from point B to point A by rope.the tensile stress of the rope is = 600 mpa. and the cross-sectional area is a=802 mm.according to other dimensions given (a=850mm b=1500 mm), this vince can hang No more than how many kg of load.(G=?)
3: T = 10.11 kN-m
2. The tires of an agricultural tractor shown below are assumed to be 25 cm wide for the front tires and 40 cm at the rear tires. Ground contact of each tire is 15 cm. Calculate the compressive stress between each tire and the ground surface. Weight = 2,500 kg 15 cm 1.3m Point A 2.2 m 2R 2F
A cylindrical tank of 15 m high and 5 m in diameter is to be filled with water. Find the minimum thickness of the tank plating if the ultimate stress is limited to 500 MPa and the factor of safety is 2.
The uniform 44 kN bar BC is supported by a pin at C and the aluminum wire AB. The cross-sectional area of the wire is 178.5 mm2. Assuming bar BC to be rigid, find the vertical displacement of B due to the weight of the bar. Use E = 71 GPa for aluminum. Anwer must be in mm.
Consider a long cylindrical solid rod - total length L - mass density p; - radius R1 = R2 = R; suspended from the top and hung freely downward along the (-1)Ž direction; - subjected to gravitational pull from the ground in the (-1)Ź direction. R2 +Z Z = h R1 Z = 0 a) Calculate the longitudinal stress o within the rod as a function of h; b) Repeat the calculation ifR| turns into a cone); = 0 and R2 = R (i.e., when the cylindrical rod c) Based on your answers to a) and b), provide some reasoning as to why a space elevator would not work [hint: think about the rod as the load bearing element of the space elevator].
The rigid bar ABC supports a load of 21.1 kN at point C. A circular rod (diameter 25 mm) supports the bar at B. The length of AB is 3.5 m and the length of BC is 1.1 m. Calculate the normal stress in the rod. Provide your answer to 2 decimal places in MPа. Rod diameter = 25mm В y F kN
The P load applied to a steel bar is transferred to the board by an annular washer. The diameter of the rod is 34mm and the inner diameter of the washer is 35.7 mm. Since it is known that the axial normal stress on the steel bar is 119 MPa, and the average bearing stress between the washer and the board should not exceed 34 MPA, how many mm is the smallest allowable outer diameter of the washer?
A retaining wall 6 ft high is constructed ofhorizontal wood planks 2.5 in. thick (actual dimension)that are supported by vertical wood piles of a12 in. diameter (actual dimension), as shown in thefigure. The lateral earth pressure is p1 125 lb/ft2at the top of the wall and p2 =425 lb/ft2 at the bottom.(a) Assuming that the allowable stress in the woodis 1175 psi, calculate the maximum permissiblespacing s of the piles.(b) Find the required diameter of the wood pilesso that piles and planks (t = 2.5 in.) reach theallowable stress at the same time.Hint: Observe that the spacing of the piles may begoverned by the load-carrying capacity of either theplanks or the piles. Consider the piles to act as cantileverbeams subjected to a trapezoidal distribution ofload, and consider the planks to act as simple beams between the piles. To be on the safe side, assume thatthe pressure on the bottom plank is uniform andequal to the maximum pressure.
Еxample 7 A steel bar of cross-sectional area 200 mm2 is loaded as shown in Fig. Find the change in length of the bar. Take E as 200 GPa. A В 50 kN+ 20 kN 30 kN - - -- 300 mm 500 mm RSITY AQBA