Discussion Paper on Advance Materials
Order ID 53563633773 Type Essay Writer Level Masters Style APA Sources/References 4 Perfect Number of Pages to Order 5-10 Pages Description/Paper Instructions
Discussion Paper on Advance Materials
ALL QUESTIONS MUST BE ANSWERED.
A1 QUESTION
I The British Plastics Federation (BPF) was founded in 1933 to promote the UK plastics sector and is the world’s oldest plastics trade group. BSF wants to work with an educational institution and an industrial partner to help universities establish polymer laboratories. A trial experiment on thermosetting plastics was undertaken while setting up the injection moulding equipment in UCLAN. A force, F, will inject a specified weight of epoxy thermosetting polymer into a complex injection moulding machine mold in two time and temperature scales, namely 30 seconds at 180 degrees Celsius and 85 seconds at 162 degrees Celsius. If the epoxy thermosetting polymer’s viscosity follows the Arrhenius equation of diffusion, with a rate of process proportionate to it,
2 seconds-1,
m exp m
Calculate the time it will take to complete the process at 237 degrees Celsius.
(6 points)
(ii) Compare and contrast the likely creep behavior of this material with the possible creep behavior of a thermoplastic, taking into account the main polymer structural characteristics of both. Compare and contrast the injection equation with the creep equation.
(4 points)
[Hint] Use no more than three decimal places in your replies.
(Total marks: 10)
A2 QUESTION
I Figure 1 depicts the phase diagram for the Al – Si system (the foundation of aluminum casting alloys). Explain what happens when the alloy Al 30 wt% Si is cooled to room temperature from 900 °C. You should think about phase.
Transformation, microstructure changes, temperature fluctuations, and composition are all factors to consider.
(6 points)
Figure 1: Al-Si binary system phase diagram
(ii) If nucleation is homogeneous, determine the critical nucleus radius, r*, and the activation free energy for the solidification of pure nickel. -2.53 x 109 J/m3 and 0.250 J/m2 are the latent heat of fusion and surface energy of nickel, respectively. Nickel has a supercooling curve of 319 °C. Nickel has a melting temperature of 1455 °C.
(4 points)
(Total marks: 10)
A3 QUESTION
ANALYSIS OF A CASE STUDY
Critically evaluate the following two case studies’ outputs, methodologies, and reported failures (maximum of 800 words):
1. Failure study of a reciprocating compressor’s failing connecting rod cap and connecting bolts, Engineering Failure Analysis, X. Zhu, J. Xu, Y. Liu, B. Cen, X. Lu, Z. Zeng
ISSN 1350-6307, Volume 74, Pages 218-227, https://doi.org/10.1016/j.engfailanal.2017.01.016.
http://www.sciencedirect.com/science/article/pii/S1350630716307488 ) ( http://www.sciencedirect.com/science/article/pii/S1350630716307488 )
2. Failure analysis and fatigue performance evaluation of a reciprocating air compressor’s failing connecting rod, Engineering Failure Analysis, M. N. Ilman and R. A. Barizy,
ISSN 1350-6307, Volume 56, 2015, Pages 142-149, https://doi.org/10.1016/j.engfailanal.2015.03.010.
(http://www.sciencedirect.com/science/article/pii/S1350630715000989)
[Hint 1]: To complete this job correctly, you will need to read more case studies from the same magazine and from books, as well as investigate the methodologies, structures, and failures mentioned in the articles but not explained, as the reader is supposed to be familiar with them.
[Hint 2]: You’ll need to look up the definitions of the technical phrases used in the articles to fully comprehend them. As part of your analysis, you will be expected to use appropriate technical phrases.
[Hint 3]: You could talk about failure modes or material phases, for example. You can talk about different procedures that could be used to verify the authors’ findings. Is there any other strategy that should have been included in the article but wasn’t? What gain may there have been? Why do you believe such methods were employed in the article? [Hint No. 4]: Was it possible to predict process failures when designing the process? Could the failures have been predicted with a good Finite Element Method analysis?
[Hint 5]: Make proper use of references, examples, and/or personal experience.
(20 Points)
SECTIONS B AND C
ALL QUESTIONS MUST BE ANSWERED.
B1 QUESTION
A RIPPER’S MATERIAL SELECTION
Choose the right material for a bulldozer’s ripper. The ripper functions as a distributed load beam. The ripper’s maximum operating depth is 0.6 m, and the maximum load is equal to the bulldozer’s traction force (60 kN). Figure 2 depicts ripper and bulldozer views, as well as a simplified version for this activity. This is a free-for-all exercise.
(a) (b) (c) (d) (e) (f) ( (c)
Figure 2: (a) ripper view, (b) ripper simplified schematic diagram, (c) bulldozer perspective.
You’ll need to decide on additional limits and figure out how to solve a beam’s equations. You’ll need to decide on a goal and compare the outcomes to real-world examples. You’ll have to translate the problem, calculate the performance index or indexes, choose a screening constraint, and graphically choose the actual material.
You must keep track of the entire selecting procedure.
[Hint 1]: You can choose materials with the lowest mass, lowest cost, or both as your goal. You’ll have to come up with your own ripper and constraint dimensions.
[Hint 2]: The clear statement of the problem and the writing down of the relevant equations employed in the problem will be worth 20% of the overall mark for this question.
[Hint 3]: The derivation of the material index with the right material performance equation will be worth 40% of the total score for this question.
[Hint 4]: The use of GRANTA EduPack for material selection will be worth 40% of the total mark for this question.
Reminder: Because this is an open exercise, each student is required to come up with their own answer because the problem will be defined differently.
(Total marks: 30)
B2 QUESTION
As seen in Figure 3, CPE Pressure Vessels Limited manufactures pressure vessels for the oil, gas, petrochemical, nuclear, and water industries (length L, diameter 2R, hemispherical ends). As a CPE design engineer, you’ve been tasked with creating a pressure vessel for the food processing industry. The major goal of the project is to find a suitable material for the pressure vessel’s exterior wall. When fully built, the pressure vessel resembles a cylindrical shape with an external pressure, p. The exterior wall of the cylindrical pressure tank, as well as the chosen material, should be able to withstand external pressure. The pressure tank has a radius of 10 meters. The pressure-containing outer wall, p, shall not fail due to yielding or rapid fracture. The possible greatest crack enclosed in the outside wall measures ac.
Figure 3: A food manufacturing company’s pressure vessel
The majority of pressure vessels are heavy and composed of high-strength alloy steel. You’ve been tasked with researching the possibility of different materials for lighter pressure vessels, while keeping in mind that there must be a trade-off between mass and cost – if it’s too expensive, even if it’s lighter, the manufacturing business won’t want it.
Density (); Yield strength (y); Critical stress intensity factor or fracture toughness of the material are some of the material parameters that can be used to rank materials ( ). The material volume can be calculated using the surface area and thickness of the cylindrical outer wall.
You’ll need to figure out your own dimensions and limitations, as well as the equations for pressure vessel yielding and quick fracture. Answer the following questions in order to turn the proper material selection for the food processing application into a real engineering problem:
(a) Problem translation with function, objective, restrictions, and free variables? You must give a precise definition of the issue.
(6 points)
(b) Calculate the failure performance material index and pick materials graphically. Discuss the implications of using two performance indices to choose a single material.
(10 points)
(c) Explain and justify what would happen to the performance index if both ends of the pressure vessel were closed with supporting evidence (both numerical and graphically).
(10 points)
(d) Demonstrate that the mass and material cost of the pressure vessel is provided by when compared to one made of high strength alloy steel.
,,,
= as well as
,
(4 points)
where is the density, y is the yield strength, and Cm is the material’s cost per kilogram, and the subscript “o” denotes values for high-strength alloy steel.
[Hint] Use the new material ratio over the steel.
m
= mass in milligrams per kilogram of high-strength alloy steel m0
C
and = price in comparison to high-strength alloy steel C0
Remember that because this is an open exercise, each student is expected to come up with their own solution because the problem will be defined differently.
(Total marks: 30)
RUBRIC
QUALITY OF RESPONSE NO RESPONSE POOR / UNSATISFACTORY SATISFACTORY GOOD EXCELLENT Content (worth a maximum of 50% of the total points) Zero points: Student failed to submit the final paper. 20 points out of 50: The essay illustrates poor understanding of the relevant material by failing to address or incorrectly addressing the relevant content; failing to identify or inaccurately explaining/defining key concepts/ideas; ignoring or incorrectly explaining key points/claims and the reasoning behind them; and/or incorrectly or inappropriately using terminology; and elements of the response are lacking. 30 points out of 50: The essay illustrates a rudimentary understanding of the relevant material by mentioning but not full explaining the relevant content; identifying some of the key concepts/ideas though failing to fully or accurately explain many of them; using terminology, though sometimes inaccurately or inappropriately; and/or incorporating some key claims/points but failing to explain the reasoning behind them or doing so inaccurately. Elements of the required response may also be lacking. 40 points out of 50: The essay illustrates solid understanding of the relevant material by correctly addressing most of the relevant content; identifying and explaining most of the key concepts/ideas; using correct terminology; explaining the reasoning behind most of the key points/claims; and/or where necessary or useful, substantiating some points with accurate examples. The answer is complete. 50 points: The essay illustrates exemplary understanding of the relevant material by thoroughly and correctly addressing the relevant content; identifying and explaining all of the key concepts/ideas; using correct terminology explaining the reasoning behind key points/claims and substantiating, as necessary/useful, points with several accurate and illuminating examples. No aspects of the required answer are missing. Use of Sources (worth a maximum of 20% of the total points). Zero points: Student failed to include citations and/or references. Or the student failed to submit a final paper. 5 out 20 points: Sources are seldom cited to support statements and/or format of citations are not recognizable as APA 6th Edition format. There are major errors in the formation of the references and citations. And/or there is a major reliance on highly questionable. The Student fails to provide an adequate synthesis of research collected for the paper. 10 out 20 points: References to scholarly sources are occasionally given; many statements seem unsubstantiated. Frequent errors in APA 6th Edition format, leaving the reader confused about the source of the information. There are significant errors of the formation in the references and citations. And/or there is a significant use of highly questionable sources. 15 out 20 points: Credible Scholarly sources are used effectively support claims and are, for the most part, clear and fairly represented. APA 6th Edition is used with only a few minor errors. There are minor errors in reference and/or citations. And/or there is some use of questionable sources. 20 points: Credible scholarly sources are used to give compelling evidence to support claims and are clearly and fairly represented. APA 6th Edition format is used accurately and consistently. The student uses above the maximum required references in the development of the assignment. Grammar (worth maximum of 20% of total points) Zero points: Student failed to submit the final paper. 5 points out of 20: The paper does not communicate ideas/points clearly due to inappropriate use of terminology and vague language; thoughts and sentences are disjointed or incomprehensible; organization lacking; and/or numerous grammatical, spelling/punctuation errors 10 points out 20: The paper is often unclear and difficult to follow due to some inappropriate terminology and/or vague language; ideas may be fragmented, wandering and/or repetitive; poor organization; and/or some grammatical, spelling, punctuation errors 15 points out of 20: The paper is mostly clear as a result of appropriate use of terminology and minimal vagueness; no tangents and no repetition; fairly good organization; almost perfect grammar, spelling, punctuation, and word usage. 20 points: The paper is clear, concise, and a pleasure to read as a result of appropriate and precise use of terminology; total coherence of thoughts and presentation and logical organization; and the essay is error free. Structure of the Paper (worth 10% of total points) Zero points: Student failed to submit the final paper. 3 points out of 10: Student needs to develop better formatting skills. The paper omits significant structural elements required for and APA 6th edition paper. Formatting of the paper has major flaws. The paper does not conform to APA 6th edition requirements whatsoever. 5 points out of 10: Appearance of final paper demonstrates the student’s limited ability to format the paper. There are significant errors in formatting and/or the total omission of major components of an APA 6th edition paper. They can include the omission of the cover page, abstract, and page numbers. Additionally the page has major formatting issues with spacing or paragraph formation. Font size might not conform to size requirements. The student also significantly writes too large or too short of and paper 7 points out of 10: Research paper presents an above-average use of formatting skills. The paper has slight errors within the paper. This can include small errors or omissions with the cover page, abstract, page number, and headers. There could be also slight formatting issues with the document spacing or the font Additionally the paper might slightly exceed or undershoot the specific number of required written pages for the assignment. 10 points: Student provides a high-caliber, formatted paper. This includes an APA 6th edition cover page, abstract, page number, headers and is double spaced in 12’ Times Roman Font. Additionally, the paper conforms to the specific number of required written pages and neither goes over or under the specified length of the paper. GET THIS PROJECT NOW BY CLICKING ON THIS LINK TO PLACE THE ORDER
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