Exercise No. 2: Simple Strain1. A steel rod having a cross-sectional area of 300 mm2 and a length of 150 m is suspendedvertically from one end. It supports a tensile load of 20 kN at the lower end. If the unit mass ofsteel is 7850 kg/m3 and E = 200 × 103 MN/m2, find the total elongation of the rod.Answer: 8 = 54.33 mm2. A steel wire 30 ft long, hanging vertically, supports a load of 500 lb. Neglecting the weight of thewire, determine the required diameter if the stress is not to exceed 20 ksi and the totalelongation is not to exceed 0.20 in. Assume E = 29 x 106 psi.Answer: d = 0. 1988 inII()

The elongation of the steel rod occurs because of applied loads attached to it or either by its…

1. A steel rod having a cross-sectional area of 300 mm2 and a length of 150 m is suspended vertically from one end. It supports a tensile load of 20 kN at the lower end. If the unit mass of steel is 7850 kg/m3 and E 200 x 103 MN/m2, find the total elongation of the rod. Answer: 8 = 54.33 mm

1. A steel rod having a cross-sectional area of 300 mm2 and a length of 150 m is suspended vertically from one end. It supports a tensile load of 20 kN at the lower end. If the unit mass of steel is 7850 kg/m3 and E 200 x 103 MN/m2, find the total elongation of the rod. Answer: 8 = 54.33 mm

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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Concept explainers

Dependence on mechanical properties

The mechanical properties of materials are those structures that include the reaction to the load used. Metal switching features determine the scope of the usefulness of the content and establish the expected service life. Machine structures are also used to help distinguish and identify material objects. The most common mechanical properties considered are strength, ductility, stiffness, impact resistance, and resilience to fractures.

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Exercise No. 2: Simple Strain
1. A steel rod having a cross-sectional area of 300 mm2 and a length of 150 m is suspended
vertically from one end. It supports a tensile load of 20 kN at the lower end. If the unit mass of
steel is 7850 kg/m3 and E = 200 × 103 MN/m2, find the total elongation of the rod.
Answer: 8 = 54.33 mm
2. A steel wire 30 ft long, hanging vertically, supports a load of 500 lb. Neglecting the weight of the
wire, determine the required diameter if the stress is not to exceed 20 ksi and the total
elongation is not to exceed 0.20 in. Assume E = 29 x 106 psi.
Answer: d = 0. 1988 in
II
()

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