The rigid bar 2 m long is supported by a steel rod at the middle B and bronze rods equidistant from both ends at A and C as shown. The properties of the rods are given in the tabulation below. Steel Bronze Allowable stress 140 MPa 120 MPa Modulus of Elasticity, E 200 GPa 83 GPa Area, A 400 mm2 900 mm2 Length, L 1,000 mm What is the required length of the steel rod so the reactions on the three rods are the same? What is the required length of the steel rod so that both the steel and the bronze rods reach their allowable stresses at the same time? What is the maximum permissible load W that the rods can carry?

The rigid bar 2 m long is supported by a steel rod at the middle B and bronze rods equidistant from both ends at A and C as shown. The properties of the rods are given in the tabulation below. Steel Bronze Allowable stress 140 MPa 120 MPa Modulus of Elasticity, E 200 GPa 83 GPa Area, A 400 mm2 900 mm2 Length, L 1,000 mm What is the required length of the steel rod so the reactions on the three rods are the same? What is the required length of the steel rod so that both the steel and the bronze rods reach their allowable stresses at the same time? What is the maximum permissible load W that the rods can carry?

Materials Science And Engineering Properties

1st Edition

ISBN:9781111988609

Author:Charles Gilmore

Publisher:Charles Gilmore

Chapter6: Introduction To Mechanical Properties

Section: Chapter Questions

Problem 6.2DP

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Question

The rigid bar 2 m long is supported by a steel rod at the middle B and bronze rods equidistant from both ends at A and C as shown. The properties of the rods are given in the tabulation below.

	Steel	Bronze
Allowable stress	140 MPa	120 MPa
Modulus of Elasticity, E	200 GPa	83 GPa
Area, A	400 mm²	900 mm²
Length, L		1,000 mm

What is the required length of the steel rod so the reactions on the three rods are the same?

What is the required length of the steel rod so that both the steel and the bronze rods reach their allowable stresses at the same time?

What is the maximum permissible load W that the rods can carry?

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