Estimate the tensile strength required to prevent cracking in a concrete-like material that is cast into a bar, 50 in. long, and is fully restrained at each end against axial movement. The concrete is initially cast and cured at a temperature of 100°F and subsequently cools to a temperature of 0°F. Assumethat the modulus of elasticity is 5 million psi and the thermal coefficient is 5 * 10-6 in./in./°F.

Estimate the tensile strength required to prevent cracking in a concrete-like material that is cast into a bar, 50 in. long, and is fully restrained at each end against axial movement. The concrete is initially cast and cured at a temperature of 100°F and subsequently cools to a temperature of 0°F. Assumethat the modulus of elasticity is 5 million psi and the thermal coefficient is 5 * 10-6 in./in./°F.

Materials Science And Engineering Properties

1st Edition

ISBN:9781111988609

Author:Charles Gilmore

Publisher:Charles Gilmore

Chapter14: Material Selection

Section: Chapter Questions

Problem 8ETSQ

See similar textbooks

Similar questions

Assume the temperature of your skin is 32o If you touch a thick piece of aluminum at 75oC, what is the skin surface temperature? How about a block of concrete at 90oC? Look up the properties for the any two materials . Discuss the results by comparing the two cases.
A concrete has a height of 5 meters and has unit area of 3 m3 supports a mass of 30, 000 kg. Determine the following: Stress Strain Change in height Acceleration due to gravity (g) = 10 m/s2 Young modulus of concrete = 20x109N/m2
Estimate the tensile strength required to prevent cracking in a concretelike material that is cast into a bar, 1.25 m long, and is fully restrained at each end against axial movement. The concrete is initially cast and cured at a temperature of 40°C and subsequently cools to a temperature of -20°C. Assume that the modulus of elasticity is 35 GPa and the thermal coefficient is 9 * 10-6 in./in./°C.
A concrete-like material that is cast into a bar is fully restrained at each end against axial movement. The concrete is initially cast and cured at a temperature of 100 °F and subsequently cools to a temperatureof 0 °F. Assuming the modulus of elasticity is 5 million psi and the thermal coefficient is 5 x 10^-6 in./in./°F., calculate the minimum TENSILE STRENGTH required to prevent it from cracking.
A rectangular block of aluminum 30 mm * 60 mm * 90 mm is placed in a pressure chamber and subjected to a pressure of 100 MPa. If the modulus of elasticity is 70 GPa and Poisson’s ratio is 0.333, what will be the decrease in the longest side of the block, assuming that the material remains within the linear elastic region? What will be the decrease in the volume of the block?
A steel block has a length of 80 mm, width of 60 mm and thickness of 40 mm. The block is subjected to a uniform hydrostatic pressure of 180 kPa on all its faces. Modulus of elasticity E=200 GPa, Poisson’s ratio ?= 0.29. a.) Determine the bulk modulus of steel, b.) Determine the dilatation (e) of the material if e is the negative of the ratio of load to bulk modulus., and c.) Determine the change in volume of the steel block.
Estimate the tensile strength required to prevent cracking in a concretelike material that is cast into a bar, 1.25 m long, and is fully restrained ateach end against axial movement. The concrete is initially cast and curedat a temperature of 40°C and subsequently cools to a temperature of –20°C.Assume that the modulus of elasticity is 35 GPa and the thermal coefficient is9 X 10-6m/m/°C.
the external and internal diameters of hollow cylinder are 115mm and 99mm respectively. when the cylinder is compressed by an axial force of 180kn the outer diameter of cylinder increases by 115.5 x 10-4 mm . determine youngs modulus of elasticity 2x105 N/mm2 a) the increase in the inner diameter . b) the increase in the wall thickness and c) Poissons ratio of the material of the cylinder
A liquid compressed in cylinder has a volume of 0.025 m3 at 25 kg/m2 and a volume of 0.020 m3 at 125 kg/m2, the bulk modulus of elasticity is:
show solution of: A liquid compressed in a container has a volume of 1 liter at a pressure of 1 MPa and a volume of 0.995 liters at a pressure of 2 MPa. The bulk modulus of elasticity of the liquid is 200 MPa
A concrete beam by of 150mm by 200mm and a length of 2 m has the density (mass/volume) of 3.85 Mg/m^3, determine the weight of the beam in Newtons.
A wood beam is strengthened using two steel plates as shown in the figure below. *Inserted Photo* The beam has simple supports and an overhang and is subjected to a point load and a uniform load as shown in the figure below. Calculate the maximum tensile and compressive stresses of the beam. Assume that Ew = 11 GPa and Es = 200 GPa. (Enter your answers in MPa. Use the deformation sign convention.) maximum tensile stress in wood ? MPa maximum tensile stress in steel ? MPa maximum compressive stress in wood ? MPa maximum compressive stress in steel ? MPa