THE
Department of STRUCTURAL Engineering
SE105
Structural materials
Instructor: Professor Yu Qiao (http://mmrl.ucsd.edu)
Course Website http://mmrl.ucsd.edu/Courses/SE105/
Lectures: TuTh
9:30am-10:50am, Online (Zoom links in Canvas)
Lab
Sessions: In-person, online
Lecture
TA: Jinay Parekh (jjparekh@eng.ucsd.edu)
Allend Botani (abotani@ucsd.edu)
Lab
Managers: Mr. Steve Porter (Office: SME 147)
Lab TAs: Chaiane Wiggers (cwiggers@eng.ucsd.edu)
Ben
Katko (bkatko@eng.ucsd.edu)
Questions
can be asked at any time at Canvas in the
Discussions section, or emailed to us. We will respond ASAP, usually within a
day.
·
Instructor
Office Hours: Tu 3-4pm, online (Zoom
links in Canvas)
·
Lecture TA Office Hours: Mon 3-4pm and Thur 12-1pm,
online (Zoom
links in Canvas)
·
Lab TA Office Hours: Wed 1-2pm, online (Zoom links in Canvas)
Textbook (required): Michael Ashby, Hugh Shercliff,
and David Cebon. Materials
Engineering, Science, Processing and Design, 4th Edition,* Butterworth-Heinemann (2019)
* Earlier editions
are acceptable (chapter numbers may be different)
Suggested
Reading Materials (optional):
1. i) Thomas G. Beckwith,
Roy D. Marangoni, John H. Lienhard V, Mechanical
Measurements, 6th Edition, Pearson (2006) or ii) A. L. Window, Strain Gauge Technology, Elsevier
(1992).
2. Sidney Mindess, J. Francis Young, David Darwin,
Concrete, 2nd Edition,
Pearson (2002)
3. D. R. H. Jones, Michael F. Ashby, Engineering Materials 2: An
Introduction to Microstructures and Processing, 4th Edition,
Butterworth-Heinemann (2012)
Prereq or co-req:
SE1 (Introduction to Structures and Design)
SE101A (Statics)
SE110A (Mechanics of Solids)
Overall
Grading*:
·
Synchronous option: Homework (15%) + Midterm (25%) + Final (35%) +
Lab (25%) + Popup questions (bonus 5%) =
Total (105%).
·
Asynchronous
option: Homework (15%) + Midterm (25%)
+ Final (35%) + Lab (25%) = Total (100%).
Class
average = B or B+. The interval
between adjacent levels will be around 1/3 to 2/3 of the standard deviation.
Students are encouraged to choose the
synchronous option. The choice of synchronous
vs. asynchronous option must be made before the second lecture (at Canvas), and
cannot be changed afterwards. Special requests
will be reviewed by the instructor on a case by case basis.
Students who choose the asynchronous option must
attend the midterm and the final exams at the same time as the rest of the
class, during normal lecture/exam hours. If there is any issue, please contact
the instructor by the end of the third week.
Exams: The midterm exam will
cover the lectures in the first half of the quarter. The final exam will be
comprehensive. Both exams are open book, open notes.
Homework: Except for the last
week, each week’s homework (usually there are two homework assignments per
week) will be due by the beginning of
the class time on the following Tuesday. Homework solutions will be posted in
Canvas. Late homework without pre-approval will not be accepted. Homework
problems will be posted at Canvas a few hours after each class. Homework
submission is done at Canvas.
Popup questions will be given
“randomly” during lectures, to the students who choose the synchronous option. Full
participations in popup questions = full scale bonus points. Some of them are
“treasure chest” questions and their answers will be counted: more than 50%
correct answers = 1 extra bonus point; more than 75% correct answers = 2 extra
bonus points. For other questions, only participation will be recorded.
Handouts of lecture slides are
available in Modules in Canvas
Tentative Class
Schedule
|
Lecture |
Lecture Slides and Reading |
Homework & Remarks |
|
|
1 |
Introduction (Chapt 1); Types of Materials (Chapt 2) |
Homework 1 |
Due on next Tuesday |
|
2 |
Materials Selection (Chapt 3) |
Homework 2 |
|
|
3 |
Density
and Stiffness (Chapt 4) Strain
measurement (Ref. 1) |
Homework 3 |
Due on next Tuesday |
|
4 |
Homework 4 |
||
|
5 |
Homework 5 |
Due on next Tuesday |
|
|
6 |
Homework 6 |
||
|
7 |
Stiffness
Limited Design (Chapt 5) |
Homework 7 |
Due on next Tuesday |
|
8 |
Homework 8 |
||
|
9 |
Strength
and Ductility (Chapt 6) |
Homework 9 |
Due on next Tuesday |
|
10 |
Homework 10 |
||
|
11 |
Midterm Exam |
No Homework |
Due on next Tuesday |
|
12 |
Strength Limited
Design (Chapt 7) |
Homework 11 |
|
|
13 |
Fracture (Chapt 8) |
Homework 12 |
Due on next Tuesday |
|
14 |
Fatigue
and Creep (Chapt 9) |
Homework 13 |
|
|
15 |
Homework
14 |
Due on next Tuesday |
|
|
16 |
Phase Diagram (Chapt
GL2) |
Homework
15 |
|
|
17 |
Homework 16 |
Due on next Tuesday |
|
|
18 |
Concrete (Ref. 2) |
Homework 17 |
|
|
19 |
Wood
(Ref. 3) |
Homework 18 |
Self-practice |
|
20 |
Metals
and alloys (Ref. 3) (optional) |
Homework 19 |
|
|
– |
Final
Exam (Tu 8-11am) |
|
|
Structural Engineering
Department’s Academic Integrity Policy can be downloaded [here].
Lab schedule and lab instructions will be posted in
Canvas. It is required that every student must read the lab instruction before
each lab session.
Grading for Lab: Lab Reports (15%) + Midterm Competition (5%) + Final
Competition (5%) = Total (25%)
The final score of a lab report for
a student = the overall score of the lab report for the team x the correction
factor.
For the midterm and final competitions, the team who wins the
first place of the class (not just the lab session) enjoys a bonus factor of
1.15; the 2 teams who win the second place of the class enjoy a bonus factor of
1.1; and the next 4 teams (the third place) enjoy a bonus factor of 1.05.
Additionally, at the end of the quarter, the TAs may suggest (upon
the approval of the instructor) up to 10% bonus points for students whose
performance is outstanding or up to 20% negative points for students whose
performance is unacceptable (e.g. routine absence),
based on their observations in lab sessions. The majority of
the class will not be affected by this item.
Lab Report (1 per team) is due at the beginning of the following lab session.
No late lab report will be accepted.
Teams: The laboratory exercises will be conducted in
teams. You will have the opportunity to pick, within the first week, your own
team members. Once a team is formed, all members share the grade given to a
team. Each experimental laboratory will have a report associated with it.
Lab Report Guideline
This write-up provides a general set of guidelines
for laboratory reports. However, each lab write-up must be considered in the
context of the requirements of that laboratory exercise. Thus some exercises
will require reports with all the aspects listed in this guideline, while
others may require more or less levels of detail.
Cover Sheet
Title of Report
Student name (#)
Date: (##/##/##)
(Report Due Date)
Purpose
In
this portion of the lab report, you should clearly state the problem that was
investigated and explain the reasons that you performed this experiment.
Discuss what you expected to learn from the experiment and why you
wanted/needed the information that was earned.
Theoretical
Analysis
In
this section, you should discuss the problem from the standpoint of fundamental
principles. Discuss the different theoretical principles that you used during
the experimental and data reduction processes. You should present any equations
that you used for data reduction in this section of the lab report.
Testing
Apparatus and Instrumentation
The
testing equipment that you used during the experiment should be described in
detail in this portion of the lab report. Describe how the testing equipment
was set up and how the different parts of the experimental apparatus worked
together to provide you with the information that you needed. All
instrumentation used in the experiment should be described (give range and
sensitivity). Diagrams of the experimental set up can be presented in this
section of the report, if appropriate.
Procedure
This
section of the lab report is a record of how you actually performed the
experiment. You should give a detailed description of the different steps you
executed during the experiment. This section should not be an
instruction guide for how the experiment should be performed. If you missed a
step or changed the experiment at all, you should explain the change and the
reason for departing from the standard test protocol. Any changes from the
standard test protocol may affect your results. Therefore, you may be able to
explain any unexpected results by referencing changes to the procedure that you
made during the experiment. If a standard testing procedure was used during the
experiment, you may reference it.
Results
The
results from the experiment should be presented in this section in simple,
condensed form. This can be achieved by using tables, graphs, and figures. Any
tables, graphs and figures that you use should be included in this section (not
at the end of the report!) and should be discussed and referenced in the text
of this section. When possible, your results should be compared to information
from reliable resources.
Discussion
of Results
In
this section of the report, you should discuss the results of the experiment in
relation to the objective of the experiment. Compare your results to the
theoretical results obtained by using principles discussed in the Theoretical
Analysis portion of the report. Again, table, graphs, and figures can be used
to present a comparison clearly and simply. Explain possible reasons why your
results may or may not match well with the theoretical results. Any unexpected
results should be discussed and explained in terms of experimental procedure
and/or theoretical principles. If you are testing a number of different
specimens in an exercise this would be the section where you would compare the
results.
Conclusions
In
this section, important findings from the experiment should be discussed in
relation to the purpose of the experiment. Results per-se should not be
discussed here. Moreover, any findings that were not mentioned in the preceding
sections of the report should not be discussed. In addition, list 3-4
I-must-remember items (tricks, knowledge new to you, lab devices new to you,
etc.) that you learned from the lab exercise.
References
References
are used to identify other people’s work and concepts [1]. It is critical that
everyone provides a clear record as to where we have obtained information if
previously published, or stated, by someone else [e.g. 2]. Thus, a list of
references, in full, including, but not restricted to, journal articles,
websites, books, etc. needs to be included as part of the report. Not citing a
reference is considered the equivalent of academic dishonesty and will be
investigated. Citations must be specifically given, throughout the text,
wherever other people’s ideas, concepts, words, or other work are used,
throughout the text. If a book is cited, the page number must be specified [3].
If a sentence or a paragraph written by other people is directly quoted without
rephrasing, it must have a different font from other parts of the report, and
quotation marks must be used [4].
[1]
Website starting with “http://” (Wikipedia is not allowed
in this course)
[2]
Porter, S. Private conversation or email
communication (March 20th, 2017).
Appendix
Include
any items pertaining to, but not directly part of, the lab report. Such items
include data sheets, handouts, sample calculations, etc.