EAS 4200C - Aircraft Structures I - Fall 2011

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EAS 4200C - Aircraft Structures I - Fall 2011
8/22: Homework assigned. Due 8/29 with first quiz.
This home page (www.mae.ufl.edu/haftka/structures/) serves as a communication vehicle between the
students and the instructor of the Aircraft Structures I course.
Instructor: Raphael T. Haftka,
Office hours: MWF 9th period, 220 MAE-A building
Lecture Times: 8th Period (3-3:50) MWF
Graduate Teaching assistants: Karl Nilssen
Bharani Ravishankar.
Project advisor: Anirban Chaudhuri
Office hours (MAE-C130, except Dr. Haftka).
Classmate TAs: TBA
Textbook: A.P. Boresi, and Richard J. Schmidt. Advanced Mechanics of Materials, 6th edition, John
Wiley, 2003.
Primary References:
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Beer, F.P. and Johnson, E.R., Mechanics of Materials, McGraw-Hill.
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Niu, C.Y., Airframe Structural Design, JConmilit Press, Hong Kong.
Topics:
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Introduction – aircraft structures and materials
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Introduction to elasticity
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Torsion and bending of beams
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Analysis and design of thin-walled beams
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Failure criteria for isotropic materials
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Fracture and fatigue
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Course objectives: Upon completion of this course, students will demonstrate:
1) knowledge of modern aerospace materials and selection for various aircraft components
2) the ability to use engineering science tools such as advanced mathematics, stress analysis
3) the ability to perform stress and deformation analysis on common structural forms found on
aerospace structures
4) knowledge of failure criteria for engineering materials
5) ability to design simple aerospace structures to support mechanical loads
Homework: Homework assignments help students absorb methodology and concepts taught in the
course and prepare them for the exams. Credit for homework problems will come from a quiz held on
the day a homework assignment is due. The 10 minute quiz will include a fragment of one of the
homework problems, possibly with modified numbers. The two quiz will be tossed out in calculating the
homework grade, but no make-up quizzes will be given. Homework assignments are also intended to
develop written communication skills. Students can submit for extra credit (15% of a quiz) a solution to
a homework assignment set (just before the quiz) that will be judged on clarity. The criterion you should
apply to judge clarity is the following: Five years from now, you should be able to pick up the
homework, understand exactly what was done, and be able to verify its correctness with a minimum
investment of time without having access to the textbook.
In-Term Exams: The three in-class exams are closed book, except for one 8.5"x11" page, written in
any density (you may bring a magnifier if you wish to write very small). The optional comprehensive
final exam also constitutes a make-up exam for any of the in-term exams.
Project: Stress analysis of the root station on the wing of a Boeing 767. Will have two parts spaced
during the second half of the semester. 20% of the grade is based on clarity (if I have to make an effort
to understand, cannot get more than 15% of the clarity component).
Participation: Participation in class is important to provide feedback to the instructor and makes the
lecture livelier. You can get extra credit for participation at the rate of 0.5% per participation. To get
credit for a question you will need to email me the question you asked or your answer within one week
of participation. Credit will not be given for asking questions relating to class organization, such as
about quizzes and exams. You cannot get credit for participation more than once a week.
Extra credit and student classmate assistants: Students learn from one another, and if you normally
help your classmates in their studies, you can earn extra credit (20% on homework) and some pay for
being available to your classmates during scheduled office hours three hours a week. This will require
you to complete the homework and discuss your solution with the TAs two days after it is assigned. Up
to three positions will be filled during the first week of the semester. In case of more applicants than
positions, preference will be given based on overall GPA and the grade in Mechanics of Materials.
Grading Policy: 20% homework quizzes, 60% exams (three in-term exams and optional final weighted
equally at 20% each if you do not take final, and 15% each if you take it), 20% project. Grades are on an
absolute scale A = 93, A- = 90, B+ = 87, B = 83, B- = 80, C+ = 77, C = 73, C- = 70, D+ = 67, D = 63,
D- = 60), with minor adjustments to avoid grades being decided by a small fraction of a point).
Course web site: www.mae.ufl.edu/haftka/structures students are expected to check it on a regular
basis for up-to-date course information. This may include changes to the syllabus, homework
assignment due dates, and exam schedules.
Class E-mail Alias: To facilitate communication with the class, an e-mail alias will be created by the
University. In order to be included in the distribution list, you will need to have a [email protected] e-mail
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address. You can check this by going to the University of Florida home page, clicking on Phonebook at
the top of the page, and then searching for your name. If your e-mail address is not listed as
[email protected], then you will need to contact the UF Computing Help Desk (helpdesk.circa.ufl.edu) to
have this corrected during the first week of classes. If you do not have your e-mail address corrected,
then you will not receive potentially important e-mail distributions from the instructor to the class. Note
that you can always forward your [email protected] e-mail to some other e-mail address if desired.
Personal responsibility: You are personally responsible for all information disseminated during the
lectures. This means knowing all homework due dates, knowing when exams will be given, where they
will be given, what material they will cover, and knowing all material, handouts, and announcements
made in the lectures, whether or not you were present. Thus, if you miss a lecture, it is your
responsibility to obtain all information presented during that lecture. "I missed that information" or "I
was unaware of that information" will not be accepted as valid excuses.
Honesty Policy : All students admitted to the University of Florida have signed a statement of academic
honesty committing themselves to be honest in all academic work and understanding that failure to
comply with this commitment will result in disciplinary action. This statement is a reminder to uphold
your obligation as a UF student and to be honest in all work submitted and exams taken in this course
and all others.
Accommodation for Students with Disabilities: Students requesting classroom accommodation must
first register with the Dean of Students Office. That office will provide the student with documentation
that he/she must provide to the course instructor when requesting accommodation.
UF Counseling Services: Resources are available on-campus for students having personal problems or
lacking clear career and academic goals. The resources include:
x
x
UF Counseling & Wellness Center, 3190 Radio Rd, 392-1575, psychological and psychiatric
services.
Career Resource Center, Reitz Union, 392-1601, career and job search services.
Software Use : All faculty, staff and student of the University are required and expected to obey the laws
and legal agreements governing software use. Failure to do so can lead to monetary damages and/or
criminal penalties for the individual violator. Because such violations are also against University
policies and rules, disciplinary action will be taken as appropriate. We, the members of the University
of Florida community, pledge to uphold ourselves and our peers to the highest standards of honesty and
integrity.
Contribution of course to meeting the professional component:
4A. EAS 4240 supports several program outcomes enumerated in the Mission Statement of the
Department of Mechanical and Aerospace Engineering. Specific ASE program outcomes supported
by this course include: (1) Possess knowledge of aerospace structures and materials (ASE Program
Outcome A5).
4B. Mathematical Sciences (15%), Physical Sciences (15%), Engineering Sciences (70%)
Relationship of course to program outcomes:
This course achieves the following ABET outcomes [note that the outcome number corresponds to the
respective ABET outcomes (a) through (k).]:
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Apply knowledge of mathematics, science, and engineering [outcome (a), high coverage (35%);
method of assessment is specially selected problems on three exams]
Design a system, component, or process to meet desired needs within realistic constraints such as
economic, environmental, social, political, ethical, health and safety, manufacturability and
sustainability [outcome (c), low coverage (10%); method of assessment one homework problem
of project length]
Identify, formulate, and solve engineering Problems [outcome (e), high coverage (35%); method
of assessment is specially selected homework problems and select problems on three exams]
Understand professional and ethical responsibilities [outcome (f), low coverage, assessed
informally]
Communicate Effectively [outcome (g), low coverage (5%), class interaction]
Understand the impact of engineering solutions in a global, economic, environmental and societal
context [outcome (h), low coverage, assessed informally in evaluating homework]
Recognize the need for, and engage in life long learning [outcome (i), low coverage discussion of
practical aspects of aerospace structure. Learn the procedure of critiquing a journal paper from a
modern Aerospace journal]
Use the techniques, skills, and modern engineering tools necessary for engineering practice
[outcome (k), high coverage (15%); method of assessment is assignments and computer
programming].
Enjoy. All feedback is welcome. Do not hesitate to contact me with any problems.
If you have comments or suggestions:
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Email me at [email protected]
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