Question

The elastic modulus, yield strength and ultimate strength of a
certain material

are 110 GPa, 240 MPa and 265 MPa, respectively. If a cylindrical
bar of this

material 380 mm long is subjected to a uniaxial tension test and
its length is

increased by an amount of 0.50 mm under a tensile load of 6660 N.
At the same

time its diameter decreased by 0.28 mm. Calculate;

a) The initial diameter of the bar,

Answer #1

1. A specimen of an unknown material is subjected to tensile
test. It presents a square Cross-Section (36 mm on each side) and
an initial length of 161 mm. Once it is pulled in tension to a load
of 72,472 N, it experiences an elongation of: 0.44 mm.
Assuming an elastic behavior, determine Young's Modulus for this
material (in GPa).
2. A specimen of an unknown material is subjected to tensile
test. It presents a square Cross-Section (32 mm on...

Material that has yield strength 100 Mpa , engineering uts 125
Mpa, Young’s mod 40 Gpa density 3 g/cm^3 and true uts 180. What
would the mass of a cylindrical member be if the height is 5 m and
needs to support tensile load 50kn before it has plastic
deformation.

Problem. A cylindrical specimen of a hypothetical metal having a
diameter of 7.671 mm and a gauge length of 251.905 mm is pulled in
tension. Use the load–elongation characteristics shown in the
following table to complete parts (a) through (f).
(a) Plot the data as stress (MPa) versus strain
(b) Compute the modulus of elasticity in GPa
(c) Determine the yield strength at a strain offset of 0.002
(d) Determine the tensile strength of this alloy
(e) What is the...

find
1)the concrete exhibited ??????(linear/elastic, etc etc – which
one?) behaviour
2) yield stress in Mpa
3) ultimate strength in Mpa
4) elastic modulus in Mpa
5)strain at failure at xx%
Cylinder had diameter 99.2 mm
Shortening of entire cylinder with depth 200.1
mm
Load
Shortening
(kN)
(mm)
0.00
0
60.46
0.047033
99.42
0.084834
138.06
0.131443
160.70
0.165278
181.97
0.204467
205.02
0.262388
211.119
0.285
217.19
0.307632
226.36
0.358965
228.562
0.386
230.91
0.413175
230.99
0.464289
228.31
0.512922
223.02
0.560197
214.31
0.614949...

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