A solid 45 mm diameter beryllium copper (E = 131 GPa; a = 17.0 x 10-6 /"C) rod is stress free when securely attached to the unyielding supports shown in the figure below. If the compressive normal stress in the rod must not exceed 450 MPa, what is the maximum temperature increase (rounded down to the nearest degree) that can be allowed for the rod? Use L1 = 300 mm. ... (1) B

A solid 45 mm diameter beryllium copper (E = 131 GPa; a = 17.0 x 10-6 /"C) rod is stress free when securely attached to the unyielding supports shown in the figure below. If the compressive normal stress in the rod must not exceed 450 MPa, what is the maximum temperature increase (rounded down to the nearest degree) that can be allowed for the rod? Use L1 = 300 mm. ... (1) B

Steel Design (Activate Learning with these NEW titles from Engineering!)

6th Edition

ISBN:9781337094740

Author:Segui, William T.

Publisher:Segui, William T.

Chapter1: Introduction

Section: Chapter Questions

Problem 1.5.6P: The data in Table 1.5.3 were obtained from a tensile test of a metal specimen with a rectangular...

See similar textbooks

Similar questions

Compare the engineering and true secant elastic moduli for the natural rubber in Example Problem 6.2 at an engineering strain of 6.0. Assume that the deformation is all elastic.
The data in Table 1.5.3 were obtained from a tensile test of a metal specimen with a rectangular cross section of 0.2011in.2 in area and a gage length (the length over which the elongation is measured) of 2.000 inches. The specimen was not loaded to failure. a. Generate a table of stress and strain values. b. Plot these values and draw a best-fit line to obtain a stress-strain curve. c. Determine the modulus of elasticity from the slope of the linear portion of the curve. d. Estimate the value of the proportional limit. e. Use the 0.2 offset method to determine the yield stress.
3) An bronze rod is rigidly attached between a aluminum rod and a steel rod as shown. Axial loads are applied at the positions indicated. Find the maximum allowable value of P that will not exceed a stress in steel of 140MPA, in aluminum of 90MPA or in bronze of 100MPа. Aluminum A = 500mm? Bronze A = 200mm? Steel A = 150mm2 2P ЗР L st = 1.2m L br = 2m Lal = 3.5m
A bar obtained by bonding together pieces of steel (Es = 29 x 106 psi) and brass (E = 15 x 106 psi) has the cross section shown (Fig. a). Determine the maximum stress in the steel and in the brass when the bar is in pure bending with a bending moment M = 40 kip-in. 0.4 in. 3 in. Brass 0.75 in. Steel Brass 0.4 in. (a) 1) Composite bar.
As shown, an aluminium alloy construction BCD with a circular cross section is fixed at end B and affected by a force of 150 N at the free end D. The diameter of the cross-section a-a is 20 mm. The yield strength of the material is 80 MPa: a) Determine the stresses at point A of the a-a cross-section. As indicated in the picture, draw the stress element in Cartesian coordinates and specify the stress values.(b) Calculate the factor of safety, n for Tresca, and the von Mises yield criterion to see if the structure would yield based on the stresses at point A.(c) In the major stress area, draw the yield loci of both criteria and indicate the operational stress state & why is the Rankine failure criterion inappropriate for aluminium alloys?
3- A cylindrical thin-walled pressure vessel was made by welding components together in a helical pattern, as shown in the figure. If the internal pressure within the vessel is p = 0.3 MPa, determine the normal stress perpendicular to the weld line and the shear stress tangential to the weld line. 400mm •t=8mm 21 weld line X
Two cylindrical rods AB and BC are welded together at B and loaded as shown. Knowing that the average normal stress must not exceed 175 MPa in rod AB and 150 MPa in rod BC, determine the smallest allowable values of d1 and d2. 300 mm 250 mm A B C dy 40 kN -dr 30 kN
1. An aluminum rod is rigidly attached between steel rod and a bronze rod as shown in the figure. Axial loads are applied at the positions indicated. Find the maximum value of P that will not exceed a stress in steel of 140 MPa, in aluminum of 90 MPa, or in bronze of 100 MPa.
An aluminum rod is rigidly attached between a steel rod as shown. Axial loads are applied at the positions indicated. Find the maximun value of P that will not exceed a stress in steel of 169Mpa, in aluminum of 98Mpa and in bronze of 111Mpa.
An aluminum alloy [E = 73 GPa; v = 0.33; a= 23.0 x 10-6/°C] plate is subjected to a tensile load P. The plate has a depth of d = 250 mm, a cross-sectional area of A = 6900 mm², and a length of L = 5.9 m. The initial longitudinal normal strain in the plate is zero. After load P is applied and the temperature of the plate has been increased by AT = 50°C, the longitudinal normal strain in the plate is found to be 2400 με. Determine: (a) the magnitude of load P. (b) the change in plate depth Ad. L Answer: (a) P = i (b) Δd = KN mm
A brass link (Eb = 105 GPa, ab = 20.9 x 106/°C) and a steel rod (Es = 200 GPa, as = 11.7 x 106/°C) have the dimensions shown at a temperature of 20°C. The steel rod is cooled until it fits freely into the link. The temperature of the whole assembly is then raised to 45°C. Determine a.) The final stress in the steel rod b.) The final length of the steel rod 50 mm Brass 37.5 mm 37.5 mm 0.12 mm -250 mm 30-mm diameter Steel Section A-A
An aluminum rod is rigidly attached between a steel rod and a bronze rod as shown in Fig. P-108. Axial loads are applied at the positions indicated. Find the maximum value of P that will not exceed a stress in steel of 140 MPa, in aluminum of 90 MPa, or in bronze of 100 MPa. Figure P-108 PARTNER Aluminum A=400 mm² Steel A = 500 mm² 2.5 m 2.0 m Bronze A = 200 mm² 1.5 m 2P