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  3. 4. the following data were obtained from a creep t

4. The following data were obtained from a creep test for a specimen having an initial gage...

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Civil Engineering

4. The following data were obtained from a creep test for aspecimen having an

initial gage length of 2.0 in. and an initial diameter of 0.6in. The initial stress

applied to the material is 10,000 psi. The diameter of thespecimen after fracture

is 0.52 in.

Length Between Gage Marks ( (in.)

Time (h)

Strain (in./in.)

2.004

0

0.002

2.01

100

0.004

2.02

200

0.006

2.03

400

0.008

2.045

1000

0.012

2.075

2000

0.020

2.135

4000

0.035

2.193

6000

0.050

2.23

7000

0.070

2.30

7200 (fracture)

0.078

Determine:

  1. The load (lbf) applied to the specimen during thetest
  2. The approximate length of time (h) during which linear creepoccurs
  3. The creep rate in in./in. h and %/h, and
  4. The true stress acting on the specimen at the time ofrupture

Answer & Explanation Solved by verified expert
4.2 Ratings (679 Votes)
a The Load lbf applied to the specimen during thetestLoad Stress X area of specimenb The approximate length of time    See Answer
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