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Homework answers / question archive / ME3401: Course Work – Materials Selection (Term 1) Coursework 2: Material selection for turbine blade for the high-pressure application using the ANSYS Software lab report (UK, English writing please)

ME3401: Course Work – Materials Selection (Term 1) Coursework 2: Material selection for turbine blade for the high-pressure application using the ANSYS Software lab report (UK, English writing please)

Mechanical Engineering

ME3401: Course Work – Materials Selection (Term 1)

Coursework 2: Material selection for turbine blade for the high-pressure application using the ANSYS Software lab report (UK, English writing please). I have uploaded the project outline and resources from the university

 

Aims

Get hands-on experience in engineering materials selection by using Ansys Granta Edupack, formerly, Cambridge Engineering Selector (CES) software.

Knowing the principles of using Ansys Granta, translating a design requirement for

maximising materials indices (MI). Use those to draw Ashby chart(s) in Ansys Granta available at computer labs ELG06/07. This year (2022/23) it is available via apps anywhere (make sure you connect to City VPN to access the software). From the chart(s) find out a list of six top-ranked materials. Explain the steps involved and the reasons for your choice in terms of materials selection strategy. Make sure that the report work is logically and clearly structured. The inclusion of the text, figures and tables is meaningful and accurate.

 

ME3401 students are divided into two groups (Mechanical and Aeronautical) for the purpose of this CW. Please submit only one of the following case studies (as per your group) as your assignment.

Course Work 1: Materials selection for wind turbine blades (Mechanical)

Blades are the core component of wind turbines whose primary function is to extract kinetic energy from wind in order to convert it to electrical energy. There is an evergrowing demand for wind turbines as it helps achieving net zero solutions, while meeting energy demands of the world. Naturally, design of such blades is paramount to the wind turbine’s efficiency. An ideal wind turbine blade will have low mass, high strength and stiffness and withstand environmental conditions. For the coursework, you can assume the blade as a cantilever beam of simple/idealised cross-sections with a uniformly distributed bending load and a uniformly distributed axial load. Using the provided information and from your research, select and rank up to six materials satisfying the above requirements.

Course Work 2: Material selection for turbine blade for the high-pressure application

(Aeronautical)

The turbine blades are used in gas turbine technology (e.g aircraft engines) to extract energy from the pressurised gas with a high operating temperature. The material selection for the turbine blades is made based on the thermal and mechanical properties. An ideal energy-efficient turbine blade will have low mass, high strength and stiffness, and high operable temperature. For deriving the material indices, you can assume the turbine blade as a cantilever beam of simple/idealised cross-sections with a uniformly distributed load and a uniformly distributed axial load, if needed. Based on this and your own further research, select and rank up to six materials which satisfy the aforementioned conditions.

References

1. Ansys Granta Edupack online materials (links in Moodle)

2. M F Ashby, Materials Selection in Mechanical Design, 3rd edition

Requirements for the Report and Mark Distribution (out of 100)

The following will give you an idea of what is expected for this CW exercise and the report

(1) Steps involved/Methodology 25 Marks

This should include the description of each step involved in the selection of the

materials and its significance

Translate the problem according to the Ansys Granta/Material selection strategy by

clearly writing the function, objective and constraints.

Describe in your own words, how you translated the problem and your understanding

of it. Write down the justification of the selection of the Materials Indices.

(2) Results presentation and Materials ranking 30 marks

This includes presentation of results through graphs and tables. Include fully labelled

graphs. This section should contain screen print of Ashby charts generated from

Ansys Granta software. It should also explain the graphs obtained, any problems

encountered, how information was extracted from the software. The use of material

indices should be clearly highlighted.

Ranking: You are asked to provide a ranking table and the selection of your first

choice of materials out of the six with justification. Explain the rationale behind the

ranking of materials.

(3) Critical discussion 30 Marks

Discuss your observation of the relationships of different materials in the Ashby charts,

the regions identified and mention the relative mechanical properties observed for each

material selected.

Describe what are the other factors that could have been considered in this case apart

from those listed in question to make your final selection of materials. Students are

encouraged to reflect back on the strategy for materials selection.

(4) Overall formatting and presentation of your report 15 Marks

The report should broadly contain the sections listed above. The minimum text size

is 12 Times New Roman and reports should not be more than 8 A4 pages including

content and Ashby Charts. The report’s presentational design and layout should be

neat and clear and promotes accessibility with a logically structured reading path;

appropriate use of graphics and effective use of colour etc. Use appropriate references

in your critical discussion with any standard referencing style.

Contact:

Dr. Sathiskumar Anusuya Ponnusami (Sathiskumar.ponnusami@city.ac.uk),

Module Leader/Lecturer, CG29.

Mr Nurul Abedin (Nurul.abedin@city.ac.uk), Teaching Assistant, CG41, available

via emails or in-person based on prior appointments.

 

 

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