Task (1) You work as a material engineer at an aircraft development, manufacturing and maintenance company in the MENA region. Recently, the manufactured airplanes have been experiencing crashes after a couple of years in service. You have been assigned as a member in the investigation team to identify the main cause of the crashes. a) The shape of the designed windows of the manufactured planes is square. The investigation team suggested that this design might be the main cause of the crashes. You must provide a possible explanation of the investigation conclusion from an engineering point of view. b) Write the properties that should be considered when designing and manufacturing the coroners of the windows from an engineering point of view. c) You have been given a sample of a malfunctioned airplane wing, which is made of aluminium. The company offered you an access to a tensile testing equipment and magnetic particles inspection equipment to investigate the malfunctioning behaviour. The results of your experiment were as follows: Load (KN) Extension (mm) 13 0.2 29 0.4 56 0.7 70 0.9 95 110 1.5 2.5 132 147 8.5 145 10 130 12 Table 1: Tensile Testing Results (Load Extension) 1. Given that the length of the sample is 90 mm and the diameter of it is 7 mm. i. Draw the stress stain diagram. ii. Find the yield stress (in KN/mm'). iii. Find the ultimate tensile stress (in KN/mm²). iv. At a point on the proportional section, calculate the modulus of Elasticity (Young's modulus). Hint: when calculating the Elasticity, use the stress strain numbers, not the force numbers

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

See similar textbooks

Related questions

Concept explainers

Question

a) The shape of the designed windows of the manufactured planes is square. The investigation team
suggested that this design might be the main cause of the crashes. You must provide a possible
explanation of the investigation conclusion from an engineering point of view.
b) Write the properties that should be considered when designing and manufacturing the coroners
of the windows from an engineering point of view.
c) You have been given a sample of a malfunctioned airplane wing, which is made of aluminium.
The company offered you an access to a tensile testing equipment and magnetic particles inspection
equipment to investigate the malfunctioning behaviour. The results of your experiment were as
follows:
Load (KN) Extension (mm)
13 0.2
29 0.4
56 0.7
70 0.9
95 1.5
110 2.5
132 5
147 8.5
145 10
130 12
Table 1: Tensile Testing Results (Load Extension)
1. Given that the length of the sample is 90 mm and the diameter of it is 7 mm.
i. Draw the stress stain diagram.
ii. Find the yield stress (in KN/mm2
).
iii. Find the ultimate tensile stress (in KN/mm2
).
iv. At a point on the proportional section, calculate the modulus of Elasticity
(Young’s modulus).
Hint: when calculating the Elasticity, use the stress strain numbers, not the
force numbers

Task (1)
You work as a material engineer at an aircraft development, manufacturing and maintenance company in the
MENA region. Recently, the manufactured airplanes have been experiencing crashes after a couple of years
in service. You have been assigned as a member in the investigation team to identify the main cause of the
crashes.
a) The shape of the designed windows of the manufactured planes is square. The investigation team
suggested that this design might be the main cause of the crashes. You must provide a possible
explanation of the investigation conclusion from an engineering point of view.
b) Write the properties that should be considered when designing and manufacturing the coroners
of the windows from an engineering point of view.
c) You have been given a sample of a malfunctioned airplane wing, which is made of aluminium.
The company offered you an access to a tensile testing equipment and magnetic particles inspection
equipment to investigate the malfunctioning behaviour. The results of your experiment were as
follows:
Load (KN)
Extension (mm)
13
0.2
29
0.4
56
0.7
70
0.9
95
110
1.5
2.5
132
147
8.5
145
10
130
12
Table 1: Tensile Testing Results (Load Extension)
1. Given that the length of the sample is 90 mm and the diameter of it is 7 mm.
i. Draw the stress stain diagram.
ii. Find the yield stress (in KN/mm').
iii. Find the ultimate tensile stress (in KN/mm²).
iv. At a point on the proportional section, calculate the modulus of Elasticity
(Young's modulus).
Hint: when calculating the Elasticity, use the stress strain numbers, not the
force numbers

Expert Solution

Step by step

Solved in 5 steps with 6 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.

Similar questions