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MATS3001 MICROMECHANISMS OF MECHANICAL BEHAVIOUR OF METALS/ MATS6106 MECHANICAL PROPERTIES OF MATERIALS
发布时间:2022-03-28
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MATS3001 MICROMECHANISMS OF MECHANICAL BEHAVIOUR OF METALS/MATS6106 MECHANICAL PROPERTIES OF MATERIALS
EXAM INSTRUCTIONS
Answer the questions that will be made available in a Moodle quiz at 10am on Tuesday, March 29th (click the “MATS3001/6106 Mid-term exam” link in the “Dislocation Theory – Mid-term exam” section on the Moodle course page).
The exam will have two parts; questions for both parts will be accessed from the same Moodle quiz.
You can complete the two parts in either order, but both must be completed by the end of the exam time, 12:10pm on Tuesday, March 29th.
PART 1 – QUALITATIVE QUESTIONS (32 marks)
The questions in the Moodle quiz will appear like this:
The purpose of the Moodle quiz for Part 1 is only to give you the questions. You should type your answers in a separate document, save as a MS Word or pdf file and then submit your file on Moodle before 12:10pm on Tuesday, March 29th. Please include the question text with your answer. In the Moodle quiz, you just need to tick the box to indicate that you have answered the question in your uploaded document.
The maximum length of the answer to each question will be indicated. In your written answers, use 12pt font.
Note that the submitted file will be checked for similarity with other students’ answers, internet sources and the lecture notes/online tutorials, so you must write in your own words. Hand-written answers will not be marked. If you make any assumptions in answering the questions, state your assumptions.
You can include figures to help explain your written answers if you wish (it is not compulsory). Your figures can be drawn by hand or using your preferred software. Ifyou can’t/don’t have time to embed your figures in the same file with your written answers to the questions, a separate file with figures can be uploaded. A single file with your figures should be uploaded using the link in Moodle. For example, if you draw figures on paper by hand, then take a photo of the drawn figures and upload the photo to Moodle. You will have 15 minutes after the end of the exam period to
submit your figures (i.e. until 12:25pm on Tuesday, March 29th). Your submitted text file with typed answers to the questions must refer to all figures (e.g. write “see Figure 1” in your typed answer, and the relevant figure should be labelled as “Figure 1”).
PART 2 – CALCULATION QUESTIONS (18 marks)
For this part, the questions will be answered directly in the Moodle quiz. Some useful equations for the quiz are given on the next page.
If your internet connection fails at any time, you should take a photo/screenshot showing some evidence of the problem, clearing showing the current date and time. Send an email to Dr Judy Hart informing her of the problem as soon as possible and you must also apply for special consideration as soon as possible:
https://www.student.unsw.edu.au/special-consideration
You can email your file(s) for Part 1 to Dr Hart if the problem is specifically related to accessing Moodle. Note that any questions you have completed for Part 2 at the time your internet connection fails will be automatically submitted at the end of the exam time.
There is a declaration in Moodle which you must read before you will be able to access the exam. You can read it in advance ofthe start ofthe exam.
In addition to the declaration, note that communication with others during a final examination is unacceptable and will be considered a breach of the UNSW Student Code of Conduct: https://www.gs.unsw.edu.au/policy/documents/studentcodepolicy.pdf
The examination is designed to test each student's understanding and knowledge of the course content and whether each student has met the course’s learning outcomes. Collaboration and collusion are unacceptable. Use of sources such as Chegg is unacceptable; Chegg will be searched after the exam to check if any students have used this site. Cutting and pasting answers from the
lecture notes or other sources, and submitting them as your own work, is unacceptable. Your submitted answers must be your own work.
If, during or after the examination, we detect that any students have communicated during the examination or otherwise engaged in collusion, action will be taken under the Student Misconduct Procedure: https://www.gs.unsw.edu.au/policy/documents/studentmisconductprocedures.pdf
The usual penalty in these cases, if proven, is 00 FL for the course though harsher penalties can apply.
In previous terms, students have acted as whistleblowers and have provided screenshots of messages sent during examinations and these have been used as evidence in student misconduct investigations. If you have evidence of collaboration or collusion during an exam, you can contact Dr Judy Hart, Dr Owen Standard or Professor Michael Ferry; you can remain anonymous if you
wish.
Some useful equations
E = αG|b|2
τR = cos θ cos λ
γ = |
where |bP| is the Burgers vector of a partial dislocation
τ =
Vector dot product between a=x1i+y1j+z1k and b=x2i+y2j+z2k:
√√
Vector cross product between a=x1i+y1j+z1k and b=x2i+y2j+z2k:
|
| = (y1z2 – y2z1)i+(z1x2 – z2x1)j+(x1y2 – x2y1)k