An asphalt concrete cylindrical specimen with a 4-in. diamcter and a 6-in. height was subjccted to an axial compressive static load for 1 hour, after which the load is removed. The strain versus time plot of the test is shown below. In the plot indicale the following responses of the material: 2 Instantancous recovery b) Delayed recovery Creep d) Permanent strain Dctermine the permancnt deformation after 2 hrs. Look at Red instantaneas horded Labels 0.006 creep 0.005 0.004 0.003 0.002 * Oelayed 0.001 Peraplent Strain 0 000 50 100 Time, minutes 150 UILAS Eldstie Stran

An asphalt concrete cylindrical specimen with a 4-in. diamcter and a 6-in. height was subjccted to an axial compressive static load for 1 hour, after which the load is removed. The strain versus time plot of the test is shown below. In the plot indicale the following responses of the material: 2 Instantancous recovery b) Delayed recovery Creep d) Permanent strain Dctermine the permancnt deformation after 2 hrs. Look at Red instantaneas horded Labels 0.006 creep 0.005 0.004 0.003 0.002 * Oelayed 0.001 Peraplent Strain 0 000 50 100 Time, minutes 150 UILAS Eldstie Stran

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

Analysis and Procedures for Material Selection

The term material selection means to select the right material for various engineering applications. There are various engineering materials available and each has different individual properties. Thorough knowledge of the material properties and behavior is crucial in the design process. For instance, a structural member, such as a beam, is used to support vertical shear loads by the building itself. To withstand such loads, the material of the beam must possess adequate strength and stiffness to resist any deformation that might lead to the formation of cracks.

Question

Determine the permanent deformation after 2 hours show all work

An asphalt concrete cylindrical specimen with a 4-in. diamcter and a 6-in. height was subjccted
to an axial compressive static load for 1 hour, after which the lond is removed. The strain versus
time plot of the test is shown below. In the plot indicale the following responses of the material:
2 Instantancous recovery
b) Delayed recovery
e Creep
d) Permanent strain
Determinc the permanent deformation after 2 hrs.
Look at Red
instantaneaus
53
0.006
crese
Labels
0.005
Requery
0.004
0.003
Delayed
Recoue
0.002
0.001
0 000
Pemadent strean
50
100
Time, minutes
150
Strain, in An.

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