An hydraulic actuator (see Fig 3) is made from pressed mild steel has a Young's Modulus of 205GPa and a yield strength of 120MPA. It is designed to resist an internal pressure of 75bar but is also subject to a positive bending moment of 25NM acting parallel to the plane along its axis (z). The actuator's external diameter (Do) is 55mm and wall thickness (t)is 2mm. A Z Axial Section Cross-section Fig 3. Calculate and sketch the state of stress on elements A, B and C in Fig 3. (i) (ii) Calculate the maximum strain in the actuator (iii) Determine what pressure is likely to cause failure and state its locus and mode. [Ans: (i) (Element A) 41.9MPA, 95.6MPA; (Element B) 47.8MPа, 95. 6MPа; (Elеment C) 53.7MРа, 95.6MPа; (ii) 46бре; (iii) 94.1bar]
An hydraulic actuator (see Fig 3) is made from pressed mild steel has a Young's Modulus of 205GPa and a yield strength of 120MPA. It is designed to resist an internal pressure of 75bar but is also subject to a positive bending moment of 25NM acting parallel to the plane along its axis (z). The actuator's external diameter (Do) is 55mm and wall thickness (t)is 2mm. A Z Axial Section Cross-section Fig 3. Calculate and sketch the state of stress on elements A, B and C in Fig 3. (i) (ii) Calculate the maximum strain in the actuator (iii) Determine what pressure is likely to cause failure and state its locus and mode. [Ans: (i) (Element A) 41.9MPA, 95.6MPA; (Element B) 47.8MPа, 95. 6MPа; (Elеment C) 53.7MРа, 95.6MPа; (ii) 46бре; (iii) 94.1bar]
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
![An hydraulic actuator (see Fig 3) is made from pressed mild
steel has a Young's Modulus of 205GPa and a yield strength of
120MPA. It is designed to resist an internal pressure of 75bar
but is also subject to a positive bending moment of 25NM
acting parallel to the plane along its axis (z). The
actuator's external diameter (Do) is 55mm and wall thickness
(t)is 2mm.
A Z
Axial Section
Cross-section
Fig 3.
Calculate and sketch the state of stress on elements A, B
and C in Fig 3.
(i)
(ii)
Calculate the maximum strain in the actuator
(iii) Determine what pressure is likely to cause failure and state
its locus and mode.
[Ans: (i) (Element A) 41.9MPA, 95.6MPA; (Element B)
47.8MPа, 95. 6MPа; (Elеment C) 53.7MРа, 95.6MPа; (ii) 46бре;
(iii) 94.1bar]](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fefc4cde9-56dc-4afa-9c45-879ca2c9f347%2F0707cc88-1327-456a-94b3-4c620a789c31%2F6hu0jk7_processed.png&w=3840&q=75)
Transcribed Image Text:An hydraulic actuator (see Fig 3) is made from pressed mild
steel has a Young's Modulus of 205GPa and a yield strength of
120MPA. It is designed to resist an internal pressure of 75bar
but is also subject to a positive bending moment of 25NM
acting parallel to the plane along its axis (z). The
actuator's external diameter (Do) is 55mm and wall thickness
(t)is 2mm.
A Z
Axial Section
Cross-section
Fig 3.
Calculate and sketch the state of stress on elements A, B
and C in Fig 3.
(i)
(ii)
Calculate the maximum strain in the actuator
(iii) Determine what pressure is likely to cause failure and state
its locus and mode.
[Ans: (i) (Element A) 41.9MPA, 95.6MPA; (Element B)
47.8MPа, 95. 6MPа; (Elеment C) 53.7MРа, 95.6MPа; (ii) 46бре;
(iii) 94.1bar]
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