THE
SE251B / MATS 261B – mechanical Behaviors
of
Polymers and composites
Instructor: Prof. Yu Qiao (http://mmrl.ucsd.edu)
Course Website: http://mmrl.ucsd.edu/Courses/SE251B
Class: TuTh 11am–12:20pm, online (Zoom links in Canvas)
Office
Hours*: Tu 3-4pm, online (Zoom links in Canvas)
* Questions can also be emailed to the instructor at any
time. They will be answered ASAP, usually within a few hours.
Suggested
Reading Materials
P. J. Flory. Polymer Chemistry.
Cornell University Press, 1953
M. F. Ashby, D. R. H. Jones. Engineering
Materials II. Butterworth, 1998
D. A. Askeland, P. P. Phule. Essentials
of Materials Science and Engineering. Thomson, 2004
G. W. Ehrenstein. Polymer Materials. Hanser, 2001
E. Miller. Introduction to Plastics
and Composites. Dekker, 1996
D. Roylance. Engineering
Viscoelasticity. MIT, 2001.
Subject Description: This
subject is focused on the mechanical behaviors of polymers and polymer-matrix
composites, covering phenomenological description in context of viscoelastic
continuum mechanics as well as molecular mechanisms. Topics include general
introduction to composites, viscoelasticity, spring-dashpot models, glass
transition, rubber elasticity, micromechanisms of crazing and shear banding,
ultimate properties of polymers, reinforced polymers, joints and adhesion, etc.
This introductory graduate-level course is intended for students from all the
departments in the School of Engineering.
Handouts (pdf files available in Modules in Canvas)
Handout 1:
Introduction to Composites
Handout 2:
Overview of Polymers
Handout 3: A
Brief Introduction to Thermodynamics
Handout 4:
Engineering Viscoelasticity (by Prof. D. Roylance)
Overall
Grading
·
Synchronous option: Midterm Exam (50%) + Term
Project (50%) + Class Participation
(5%) = Total (100+5%).
·
Asynchronous
option: Midterm Exam (50%) +
Term Project (50%) = Total (100%)
Class
average = B+. The interval between
adjacent levels will be 3~5 points, depending on 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.
Term
Project
Each student will choose a topic closely
related to this course. A technical report will be finished by the end of the
quarter. By the end of the 7th week, each student should have chosen
the topic and received the approval from the instructor. The final report
should be submitted to Canvas as a single pdf file, before 11:59pm on Friday in
the last week of lectures (not the
Finals week).
Sample topics: Mechanical properties of
photovoltaic polymers; Mechanical properties of electrically conductive
polymers; Mechanical properties of 3D-printed polymer parts; High-temperature
thermosets; High-temperature thermoplastics; Behaviors of unsaturated
polyesters in seawater; etc.
To promote discussion and collaboration,
each student may choose to complete the term project either 1) individually or
2) in a small group of two. The grading standard will be adjusted according to
the group size. The default option is individual report. The decision must be
made by the beginning of the fifth lecture. It cannot be changed afterwards,
unless specially approved by the instructor. For the students who choose Option
2, team formation should be completed by the end of the fourth week. We
encourage you to choose your own teammate. Otherwise, the instructor will
assign the team randomly.
The Academic Integrity
Policy
can be
downloaded [here].