Ultimate Ultimate strength (MPa) strength (ksi) Material Aluminum alloys 100–550 Concrete 10-70 (compression) Steel Machine 550-860 Spring 700-1,900 Stainless 400–1,000 Tool 900 Structural Steel 340-830 Titanium alloys 900–1,200 Wood (Bending) Douglas fir 50-80 Oak 50–100 Southern pine 50–100

Ultimate Ultimate strength (MPa) strength (ksi) Material Aluminum alloys 100–550 Concrete 10-70 (compression) Steel Machine 550-860 Spring 700-1,900 Stainless 400–1,000 Tool 900 Structural Steel 340-830 Titanium alloys 900–1,200 Wood (Bending) Douglas fir 50-80 Oak 50–100 Southern pine 50–100

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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An aluminium alloy bar of circular cross section as shown on the figure is loaded by tensile forces, P. The length and diameter of the bar are 3.0m and 30mm, respectively. If the bar elongates by 7.5 mm, what is the decrease in diameter Ad? What is the magnitude of the load P? Its modulus of clasticity E=73 GPa and Poisson’s ratio=1/3. (
The stress-strain diagram for a metal alloy having an original diameter of 16 mm and a gauge length of 300 mm is given in the figure. Determine approximately the modulus of elasticity for the material, the load on the specimen that causes yielding, and the ultimate load the specimen will support. a (MPa) 700 600 500 400 300 200 100 € (mm/mm) 0 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.001 0.002 0.003 0,004 0,005 0.006 0,007
A round steel alloy bar with a diameter of 19mm and a gauge length of 76mm was subjected to tension, with the results shown in Table. Using a computer spreadsheet program, plot the stress–strain relationship. From the graph, determine the Young’s modulus of the steel alloy and the deformation corresponding to a 37kN load.
PROBLEM 3-3 GIVEN: Data taken from a stress-strain test for a brittle alloy are given in the table. The curve is linear between the origin and the first point. The rupture stress is or = 30.0 ksi. REQUIRED: Plot the diagram, and determine approximately the modulus of toughness. σ (ksi) 0 44.8 54.0 57.5 59.5 60.0 € (in./in.) 0.0008 0.0013 0.0017 0.0021 0.0023
STRENGTH OF MATERIALS\ What will be the elongation of a steel bar 40mm x 40mm square section when it is subjected to an axial tensile load of 200kN, Length is 2m and modulus of elasticity E=200GPa.
The mean dimensions of the cross section of the leading edge and torsion box of an airplane wing can be approximated as shown. The wing is subjected to a torque of 4.7 MN m and the wall thickness is 10 mm. The wing is made of 2014-T6 aluminum alloy. Figure 1 of 1 0.5 m 10 mm 10 mm 10 mm 2 m 0.25 m 0.25 m Express your answer with the appropriate units. Tavg 124 MPa Submit Correct Part B My Answers Give Up Determine the angle of twist per meter length of the wing. Express your answer with the appropriate units. VΠΙ ΑΣΦ It vec Submit My Answers Give Up Incorrect; Try Again; 5 attempts remaining ? °/m
A brass alloy rod having a cross sectional area of 0.24 in.2and a modulus of 16 * 106 psi is subjected to a tensile load. Plastic deformation was observed to begin at a load of 8,944 lb.a. Determine the maximum stress that can be applied without plastic deformation.b. If the maximum length to which a specimen may be stretched without causing plastic deformation is 3.28 in., what is the original specimen length?
Consider a rectangular specimen of aluminium has a dimension of 10 ?? × 12.7 ?? is pulled in tension with 35500 N. Calculate the resulting strain. Given the modulus of elasticity is 69 × 103??? and assume that the deformation is elastic.
Please solve
3. An aluminum material element experiences a state of plane stress with the magnitudes and directions of the stress components given in the figure. Please calculate the change in volume per unit volume this material element would experience when subjected to the stress state given in the image below and a temperature increase of 80°C. (Note that the dotted horizontal line and 15 degree angle are irrelevant to this problem). Aluminum Properties: Thermal Coefficient of Expansion = 24 x 10-6 mm/mm/°C, Elastic Modulus = 69 GPa, Poisson Ratio = 0.35 250 MPa 60 MPa 15° 150 MPa