Materials Engineering Analysis 2022

MATERIALS ENGINEERING
By Name
Course
Instructor
Institution
Location
Date

Introduction
The tensile features of materials need to be evaluated to ensure the safety during the design of
structural components including bridges, aircrafts, railways lines, pressure vessels, marine ships
among others. Therefore tensile strength of materials ought to meets the requirements of strength
of the specific structural application (Simonovski, Holmström & Bruchhausen, 2017). The
mechanical features of the metals determine the type of engineering application to be adopted.
Experiments involving tensile tests may be used in the prediction of the tensile features and they
are carried out by applying axial or even longitudinal forces on a given specimen whose
dimensions are known. Such forces are applied on the specimen to the point the specimen
undergoes deformation which then results in failure (Yarin, Lee, An & Yoon, 2019). The tensile
load alongside the corresponding extensions is thereafter noted for purposes of statistical analysis
besides determination of the strain-stress relationship of specimen of material used.
Aims
 To comprehend behavior of various material under tension
 To determine the various mechanical properties of metals
 To draw conclusion regarding the type of material
 To solicit theory on dislocation movement as well as strain hardening
 To visualize the failure of a material under a microscope

Results
Table 2: Tabular results of samples
Sample A Sample B
Time
(s)
Extensio
n
(mm)
Load
(N)
Stress
(MPa)
Strain
(mm/mm)
Extensio
n
(mm)
Load
(N)
Stress
(MPa)
Strain
(mm/mm)
0 0 0.90 0.05 0 0 0.611 0.024 0
10 0.83 4694.34 238.89 0.010 0.832 2687.750 106.63
4
0.010
20 1.70 4831.41 245.87 0.021 1.665 2884.170 114.42
7
0.021
30 2.40 4781.08 243.30 0.031 2.498 2981.600 118.29
2
0.031
40 3.53 4918.83 250.31 0.042 3.332 3048.760 120.95
7
0.042
50 4.19 4926.58 250.71 0.052 4.165 3071.700 121.86
7
0.052
60 5.04 5257.07 267.53 0.062 4.998 3112.230 123.47
5
0.062
70 5.74 5437.01 276.68 0.073 5.832 2877.540 114.16
4
0.073
80 6.66 5575.88 283.75 0.083 6.665 -645.521 -25.610 0.083
90 6.71 5584.21 284.18 0.084 6.748 -780.168 -30.952 0.084
90.1 6.78 5584.04 284.17 0.084 6.757 -791.985 -31.421 0.084
92.5 7.31 5591.60 284.55 0.085 6.765 -801.031 -31.780 0.085
96.3 7.68 5587.98 284.37 0.085 6.772 -809.438 -32.114 0.085
100 8.37 5775.18 293.89 0.104
Sample C
Time (s) Extension (mm) Load (N) Stress (MPa) Strain
(mm/mm)
0 0 0.584 0.030 0
10 0.789 2737.750 104.634 0.009
20 1.458 2884.170 118.427 0.019
30 2.562 2981.600 122.292 0.030
40 3.345 3048.760 124.957 0.037
50 4.245 3071.700 125.867 0.047
60 5.251 3112.230 127.475 0.056
70 5.458 2877.540 118.164 0.068
80 6.254 -645.521 -21.610 0.075
90 6.652 -780.168 -26.952 0.080
90.1 6.708 -791.985 -27.421 0.080
92.5 6.747 -801.031 -27.780 0.083
96.3 6.865 -809.438 -28.114 0.083
100 7.254 -815.251 -32.215 0.085