Instructor: Dr. Judah Ari-Gur, Room F-246, Tel.: (269) 276-3419, Fax: 276-3421,
E-mail: Judah.ari-gur@wmich.edu
Office
Hours: Mon. 12-12:50, Wed. 4-4:50, or by
appointment
Textbook: Allen, D.H. and Haisler, W.E., Introduction
to Aerospace Structural Analysis, Wiley, 1985.
Reference: Curtis, H.D., Fundamentals of Aircraft Structural Analysis,
Irwin, 1997.
Megson, T.H.G., Aircraft
Structures for Engineering Students, Third Edition, Arnold, 1999.
Donaldson, B.K., Analysis of Aircraft Structures
– An Introduction, McGraw-Hill, 1993.
Catalog
Description: AAE 463, 4 cr-hr
(4-0)
Structural
design of aircraft emphasizing structural integrity under imposed static and
dynamic loads. Design considerations include weight, cost, and mission
constraints.
Prerequisite: ME 365.
OBJECTIVES
The course objectives are to:
1) introduce stiffness and strength
concepts of light-weight load-carrying structures;
2) understand static and dynamic failure
modes of structural components;
3) study and
evaluate methods, assumptions and approximations of structural analysis; and
4) gain insight of mission requirement
effects on the design for structural integrity of light-weight vehicles.
DESCRIPTION
The course deals with the design and analysis of
aeronautical structures. First, the flow
of boundary dynamic and static loads through a typical structure is discussed. Then stresses and deformations of individual
members and components are studied, culminating with monocoque
and semi-monocoque load-carrying structures. Assumed and actual internal load
distributions are explained and possible failure modes are presented.
Various methods of analysis are studied
thoroughly. However, the emphasis is not
on techniques but on concepts and comprehension. Hence, careful attention is paid to the
correct interpretation of results.
One of the methods applied in this course is the
Finite Element Method (FEM). There will
be a computer assignment, covering FEA (Finite Element Analysis) modelling, interpretation of results and structural
optimization. An existing FEA package
(ALGOR), which was introduced in ME365, will be employed for this assignment.
TOPICS
Historical
background.
Loads:
Aerodynamic, thrust and inertial.
3-D
elasticity. Stress and strain tensors.
Deformations.
Stiffness and strength.
Local
and global modes of failure.
Advanced
beams: Bending and extension ; Torsion and shear.
Thin
plates.
Work
and energy principles: Virtual work ; Potential energy ; Strain energy.
Approximate
methods: Rayleigh-Ritz ; Galerkin
; FEM
GRADING ( !!!
2006 Due Dates !!! )
Homework
problems - 25% (as assigned)
Midterm exam - 20% (Thur.,
19 Oct.)
FEA project - 25% (Tue., 5 Dec.)
Final
exam - 30% (12:30 –2:30, Thur.,
14 Dec.)
Failure
to receive a passing grade ($60%)
in the homework components (problems & FEA) of the final grade will result
in failing ("E") the course.
A=90%-
; BA=85%- ; B=80%- ; CB=75%- ; C=70%- ; DC=65%- ; D=60%-
Remember: You have to earn your grades. Consistent
effort is essential, but grades are assigned for the level of accomplishment,
not the degree of hard work.
ALL
THE ASSIGNMENTS MUST BE SUBMITTED UNTIL DUE DATE.
LATE
SUBMISSIONS WILL NOT BE ALLOWED