Q1. A typical graph of strain (e) versus time for a metal under creep conditions is shown below. င် B A C D E time Please select the correct labels from the graph above that correspond to the phases of a creep curve given to you for input values for Q1. (i) and Q1. (ii) and write your answers in the table on the cover sheet for [Q1. (i) and (ii)]. Note: your answers should state the letter that corresponds to the appropriate region described by the terms you were given, e.g. A, B, etc.

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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Question
Q1. (i)
Initial
strain
Please enter your supplied question data
Q1. (ii)
E0
B (hr¹Pa-¹)
n
Fracture 0.003
4.60E-34
Please enter your answers here
Your
Q1. (i)
Answers:
Q1. (ii)
3.2
Q2. σ (Pa)
σo (Pa)
780,000,000
Q3. t (hr)
Transcribed Image Text:Q1. (i) Initial strain Please enter your supplied question data Q1. (ii) E0 B (hr¹Pa-¹) n Fracture 0.003 4.60E-34 Please enter your answers here Your Q1. (i) Answers: Q1. (ii) 3.2 Q2. σ (Pa) σo (Pa) 780,000,000 Q3. t (hr)
Q1. A typical graph of strain (e) versus time for a metal under creep conditions is
shown below.
E
B
A
D
Mechanics of Materials 2
E
time
Please select the correct labels from the graph above that correspond to the phases
of a creep curve given to you for input values for Q1. (i) and Q1. (ii) and write your
answers in the table on the cover sheet for [Q1. (i) and (ii)]. Note: your answers should
state the letter that corresponds to the appropriate region described by the terms you
were given, e.g. A, B, etc.
2
Tutorials Portfolio: Exercise 6
Q2. A component is made from a metal that is known to be viscoelastic and
behaves according to a secondary creep rate equation with constants of B and n
provided as your input values.
If the component is subjected to a constant force that results in the initial strain of E
provided to you, determine the design stress for a secondary creep life of 1,000 hrs
before attaining a limiting strain, &t, of 0.01.
Transcribed Image Text:Q1. A typical graph of strain (e) versus time for a metal under creep conditions is shown below. E B A D Mechanics of Materials 2 E time Please select the correct labels from the graph above that correspond to the phases of a creep curve given to you for input values for Q1. (i) and Q1. (ii) and write your answers in the table on the cover sheet for [Q1. (i) and (ii)]. Note: your answers should state the letter that corresponds to the appropriate region described by the terms you were given, e.g. A, B, etc. 2 Tutorials Portfolio: Exercise 6 Q2. A component is made from a metal that is known to be viscoelastic and behaves according to a secondary creep rate equation with constants of B and n provided as your input values. If the component is subjected to a constant force that results in the initial strain of E provided to you, determine the design stress for a secondary creep life of 1,000 hrs before attaining a limiting strain, &t, of 0.01.
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