. A sheet of plywood consists of three equally thick sheets, the upper and lower sheets having their grain in the same direction and the middle sheet with its grain at right angles. The wood have a tensile modulus for forces in the direction parallel to the grain of 10 GPa and in the transverse direction0.4 GPa. Determine the tensile modulus of the laminate when loaded in a direction parallel to the grain directon of the outer sheets.

. A sheet of plywood consists of three equally thick sheets, the upper and lower sheets having their grain in the same direction and the middle sheet with its grain at right angles. The wood have a tensile modulus for forces in the direction parallel to the grain of 10 GPa and in the transverse direction0.4 GPa. Determine the tensile modulus of the laminate when loaded in a direction parallel to the grain directon of the outer sheets.

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 1.6.7P: A wine of length L = 4 ft and diameter d = 0.125 in. is stretched by tensile forces P = 600 lb. The...

See similar textbooks

Similar questions

A metal block of cross-section area A and length L is subject to a tensile stress of S. The block elongates by a length of 0.001L. Another block made from the same metal is subject to the same tensile stress. If this block has a cross-section area of 2A and a length of L, determine the elongation of the block.
A specimen of titanium alloy is tested in torsion and the shear stress–strain diagram is shown in Fig.a. Determine the shear modulus G, the proportional limit, and the ultimate shear stress. Also, determine the maximum distance d that the top of a block of this material, shown in Fig. b, could be displaced horizontally if the material behaves elastically when acted upon by a shear force V. What is the magnitude of V necessary to cause this displacement?
A metal block of cross-section area A and length L is subject to a tensile stress of S. The block elongates by a length of 0.002L. Another block made from the same metal is subject to the same tensile stress. If this block has a cross-section area of 2A and a length of 2L, determine the elongation of the block.
A bar of 6-mm in diameter is only allowed to decrease at a maximum of 3.96% of its total length. What is the maximum force (Newtons) that can be applied? Consider the shear modulus = 602 MPa, and the Poisson's ratio as 0.20. Express your answer in three decimal places.
An aluminum wire of length 2.0 m and diameter 5 mm is used to hang a load of 100 kg. The modulus of elasticity of aluminum is 65 GPa and consider a Poisson’s ratio of 0.30. a) Calculate the final length of the wire when the load is applied. b) Calculate the final diameter of the wire when the load is applied. (round off your answer in 5 decimal places).
In a standard tensile test a steel rod of 7/8 in. in diameter is subjected to a tension force of 17 kips. Determine the ratio of the shear modulus to the modulus of elasticity of a material whose Poisson's ratio is 0.25.
A 12-mm thick steel tire has a width of 110 mm and internal diameter of 800 mm. It is heated and trunk onto a steel will 800.50 mm in diameter. The modulus of elasticity of steel is 200 GPa. 1) Which of the following most nearly gives the tensile stress in the tire. a. 145 MPa b. 130 MPa c. 110 MPa d. 125 MPa 2) Which of the following most nearly gives the compressive pressure between the tire and the wheel. a.) 4.35 MPa b.) 3.30 MPa c.) 3.90 MPa d.) 3.75 MPa 3) If the tire has an allowable tensile stress of 124 MPa and is to resist a pressure of 1.50 MPa, which of the following most nearly gives its thickness. a.) 4.84 mm b.) 2.42 mm c.) 2.58 mm d.) 5. 16 mm
In constructing a large mobile, Jude hangs an aluminum sphere of mass 6.0kg from a vertical steel wire 0.50m long and 2.5x10^−3 cm^2 in cross-sectional area. On the bottom of the sphere, he attaches a similar steel wire, from which he hangs a brass cube of mass 10.0kg. For each wire, compute: (a) The tensile strain and(b) The elongation
A stress-strain diagram for a tension test of an alloy steel sample is shown in the diagram below. The initial sample diameter is 0.502”, the diameter of the fractured sample is 0.412”, the original gage length is 2.00” and the final length after fracture is 2.78”. Determine/ calculate the following: (a) The stress at the proportional limit. (b) The modulus of elasticity (E). (c) The yield stress using the 0.2% offset method. (d) Theultimatetensilestrength. (e) The rupture stress. (f) The percent reduction in area. (g) The percent elongation. (h) Is the material considered ductile or brittle?
A seamless cylinder of storage capacity of 0.03m3 is subjected to an internal pressure of 21 MPa. The allowable stress in the material of cylinder is 350N/mm².Determine the length of the cylinder if it is twice the diameter of the cylinder.8mm A seamless cylinder of storage capacity of 0.03mᵌis subjected to an internal pressure of 21MPa. The ultimate strength of material of cylinder is 350N/mm².Determine the length of the cylinder if it is twice the diameter of the cylinder.540mm
2. A bar of thickness 15mm and having a rectangular cross-section carries a load of 120kN. Determine the minimum width of the bar to limit the stress to 200MPa. The bar, which is 1m long, extends by 2.5mm when carrying a load of 120kN. Determine the modulus of elasticity of the material of the bar.
A wire with a Young’s Modulus, E, of 8.5 x 106 N/m2 and an original length of 1.5 mis under tension. If the wire length extension is 2.5 mm, calculate the stress in thewire. Give your answer in N/m2to 2 decimal places.