Problem 3-9: Acetal plastic has a stress-strain diagram as shown. If a bar of this material has a length of 3 ft and cross-sectional area of 0.875 in², and is subjected to an axial load of 2.5 kip, determine its elongation. σ (psi) a = 9.5(10³) €¹/3 € (in./in.)

Problem 3-9: Acetal plastic has a stress-strain diagram as shown. If a bar of this material has a length of 3 ft and cross-sectional area of 0.875 in², and is subjected to an axial load of 2.5 kip, determine its elongation. σ (psi) a = 9.5(10³) €¹/3 € (in./in.)

Mechanics of Materials (MindTap Course List)

9th Edition

ISBN:9781337093347

Author:Barry J. Goodno, James M. Gere

Publisher:Barry J. Goodno, James M. Gere

Chapter2: Axially Loaded Members

Section: Chapter Questions

Problem 2.11.4P: A prismatic bar in tension has a length L = 2.0 m and cross-sectional area A =249 mn2. The material...

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Concept explainers

Strain energy

The term strain indicates the variation in an object's length, area, and volume when the object is subjected to an external force. The external force may be of normal, shear, moment, torque, etc. The strain in an object depends on the types of external force and cross-section of the object. Mathematically, the evaluation of strain can be obtained with the help of elastic constants.

Question

3.9 please help

Problem 3-9:
Acetal plastic has a stress-strain diagram
as shown. If a bar of this material has a
length of 3 ft and cross-sectional area of
0.875 in², and is subjected to an axial load
of 2.5 kip, determine its elongation.
σ (psi)
-σ= 9.5(10³) €¹/3
€ (in./in.)

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