SITUATION 1. A composite bar is made by attaching a copper rod of length 900 mm and diameter 30 mm and a brass rod of length 600 mm and diameter 45 mm as shown. A load of 20 kN is applied at 20°C. For copper, E = 120 GPa and a = 18 x 10-6/°C. For brass, E = 90 GPa and a = 20 x 10-6/°C. The temperature rises to 50°C. Copper 44.95 MPa 63.29 MPa 72.84 MPa 900 mm 40.70 MPa + What is the stress in the copper rod if the supports are unyielding? Brass - 20 kN 600 mm

SITUATION 1. A composite bar is made by attaching a copper rod of length 900 mm and diameter 30 mm and a brass rod of length 600 mm and diameter 45 mm as shown. A load of 20 kN is applied at 20°C. For copper, E = 120 GPa and a = 18 x 10-6/°C. For brass, E = 90 GPa and a = 20 x 10-6/°C. The temperature rises to 50°C. Copper 44.95 MPa 63.29 MPa 72.84 MPa 900 mm 40.70 MPa + What is the stress in the copper rod if the supports are unyielding? Brass - 20 kN 600 mm

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

1. Three metal strips, each 40 mm height, are bonded together to form the composite beam shown. The modulus of elasticity is 210 GPa for the steel, 105 GPa for the brass, and 70 GPa for the aluminium. If the allowable bending stress for the aluminum (Gallow)al= 100 MPa, for the steel (Gallow)s=150 MPa and (Gallow)b= 200 MPa for brass determine the maximum allowable intensit of w of the uniform distributed load. 2w Aluminum 2w 10 mm Brass 10 mm Steel 20 mm 2m - 40 mm
1. A bar of copper alloy is loaded in a tension machine and it is determined that ex = 940(10-6), and ox= 100 MPa, oy = 0, 0₂ = 0. Determine the modulus of elasticity, Ecu, and the dilatation, ecu, of the copper. Vcu = 0.35.
A composite beam is made of two brass [E = 97 GPa] plates bonded to an aluminum [E = 72 GPa] bar, as shown. The beam is subjected to a bending moment of 2420 N-m acting about the z axis. Assume b=64 mm, d1=36 mm, d2=13 mm. Determine: (a) the maximum bending stresses opy,Gal in the brass plates and the aluminum bar. (b) the stress in the brass obrj at the joints where the two materials are bonded together. Brass (2) d2 Aluminum (1) Brass (2) dz b Answers: (a) obr = i MPa, oal = i MPа. (b) Obrj MPa.
A composite bar is made of Steel & Aluminium strips each having 3 cm² area of cross-section. The composite bar is subjected to an axial load of 12000 N. If Esteel = 3EÃ¡, the stress in steel is
Note: Choices also given. please show your work with clearly The ABC steel rod is attached to rigid supports and is unstressed at a temperature of 20°C. The steel is assumed to be elastoplastic, with E = 200 GPa and Sy 300 MPa. The temperature of both portions of the rod is then raised to 150°C. Knowing that the coefficient of thermal expansion for the steel is = 11.7 × 10-6/°C and assuming that it removes the redundant support at B. Determine the thermal stresses in each span. 1) thermal stress in AC given in Pa 2) thermal stress in CB given in Pa 3) Reaction in the redundant support in N
A composite beam is made of two brass [E = 120 GPa] bars bonded to two aluminum [E = 73 GPa] bars, as shown. The beam is subjected to a bending moment of 445 N-m acting about the z axis. Using a = 15 mm, b = 125 mm, c = 30 mm, and d = 75 mm, calculate (a) the maximum bending stress in the aluminum bars. (b) the maximum bending stress in the brass bars. Z Aluminum C Aluminum Answers: (a) Ogl Brass (b) Obr= i i b Brass a MPa MPa
QU A composite beam is fabricated by bonding a steel bar and a brass bar and is subjected to the bending moment M = 200 N-m. Determine the maximum bending stress in the brass and steel. Given: E, =200 GPa, E, = 100 GPa Brass 20 }o | Jakrtal
4. For the composite block shown, determine (a) the value of h if the portion of the load carried by the aluminum plates is half the portion of the load carried by the brass core, (b) the total load if the stress in the brass is 80 Mpa. P Rigid end plate Aluminum Plates (E=70 GPa) Brass Core (E=105 GPa) 40 mm I h 60 mm 300 mm
A composite beam is made of two brass [E = 112 GPa] bars bonded to two aluminum [E = 69 GPa] bars, as shown. The beam is subjected to a bending moment of 350 N-m acting about the z axis. Using a = 15 mm, b = 115 mm, c = 25 mm, and d = 65 mm, calculate (a) the maximum bending stress in the aluminum bars. (b) the maximum bending stress in the brass bars. Z Aluminum с Aluminum Answers: (a) Jal= (b) Obr= Brass i y i b Brass a a MPa MPa
An aluminum pipe must not stretch more than 0.05in when it issubjected to a tensile load. Knowing that E=10.1x10^6psi and that the maximum allowable normal stress is 14ksi, determine (a) the maximum allowable length of the pipe, and (b) the required area of the pipe if the tensile load is 127.5kips.