Walter Haisler
Aerospace Engineering Department
Texas A&M University

AERO 405, Spring 2007

My nominal office hours:  TR 8:30-10:00 am, other times by appointment
Office:  Room 719C, HRBB
Phone:  845-7541 (Aero receptionist), 845-5520 (Karen Knabe), 845-1640 (my office)
Send me Email

Teaching Assistant:  Deepak Goyal

Office web cam <- The web cam is up some of the time (refreshes every 60 sec).

Class Notes
The following are Word 2000/2002 documents and contain overheads used in the class.
Class Notes Copyright 2005, Walter E. Haisler

When printing the class notes, Word, PowerPoint, etc. documents, you can print multiple pages per sheet on the printer. In Word, Click File on the tool bar, click Print. On the Print box, click Properties and click one of the options of how you want it printed: 1x1, 1x2, 2x2, etc. (similar to PowerPoint). Most post script printers have similar options although the printing option under "Properties" may look different.   Saves tons of paper and space in your notebook. IF WORD DISPLAYS THE MACRO VIRUS WARNING WHEN OPENING A DOCUMENT, CLICK "DISABLE MACROS" BEFORE OPENING.  This is due to a formating macro imbedded in the file by my version of MS Word, NOT a virus.

Syllabus - Spring 2007

Lecture Notes
Introduction to FEM Theory and Analysis for Engineers (in .ppt format)
A04, Introduction to Finite Element Theory
A01, Sizing Procedures
A02, External Loads
A03, Material Properties
A05, Bending and Extension of Thin Plates (Theory & Analytical Solution)
A06, Plate Bending Finite Element
A07, Introduction to Composite Materials
A08, Effective Moduli of Continuous Fiber-Reinforced Lamina (transformation of stiffness from material 1-2
          to global x-y axes, effective stiffness for a laminate, force & moment resultants, stress & strain in lamina)
Laminated Composite Plate Analysis Code (.exe file), Laminate Code Input Instructions, sample material file (.txt file), Foam_core_H45 (.txt file), Foam_core_HT90 (.txt file),   Examples of Numerical Results
A09, Laminate Plate Analysis
A10, Introduction to Column Buckling
A11, Introduction to Buckling by T. Pollock (pdf)
A12, Design for Buckling of Columns and Plates
A13, Materials Selection in Structural Design

FEMAP Tutorials
Tutorial 1 - Plane Stress Modeling of a Uniaxial Rod with Axial Point Load (for Femap v9 and NX Nastran) - pdf file
Tutorial 2 - Plane Stress Modeling of Beam Bending (for Femap v9 and NX Nastran) - pdf file
Tutorial 3 - Plane Stress Modeling of Beam Bending with Modeling of Support Structure Included (for Femap v9 and NX Nastran) - pdf file
Tutorial 4 - Plane Stress Modeling of a Plate with a Circular Hold (for Femap v9 and NX Nastran) - pdf file
Plane Stress Modeling of Uniaxial Rod and Cantilever Beam with Point Load (for Femap v8.2)
Plane Stress Modeling of Flat Plate with Hole and Distributed Edge Loads
Simple Wing Spar (pdf)
Simple Wing Box Beam (zip)
Simple Rectangular Wing Planform with symmetric airfoil (zip)
B707 Tapered, Swept Wing (zip)  

ABAQUS Tutorials

ABAQUS 6.6 Documentation (on aero web site)
Tutorial 1 - Analysis of an Aluminum Bracket in Plane Stress (pdf file)
Tutorial 2 - Flate Plate with Hole (Word file)
Tutorial 3 - Plate with Non-Circular Cutout (Word file)
Tutorial 4 - Plate Buckling (Word file)

Reference Material

Aircraft Structural Details (Photos) - opens a new browser window
Links to Structures, Design, FEM, MIL Handbooks, and geneneral Aerospace Engineering Topics

Project/Homework Assignments

Homework 1, Homework 2, Homework 3, Homework 4

Getting Familiar with FEMAP (7 & 8) and CAEFEM , Getting Familiar with FEMAP 9.0 and NX Nastran
Femap 7.1 Example Mod files:  Ch3post.mod, Ch4done.mod, Ch7wing.mod    <- Right click on link and select "Save as"
FEMAP 7.1 instructions for Chapter 3 Plate with Hole problem (for Ch3post.mod file)
Project 0.5 - Bracket with end moment applied
Project 1 - Cantilever Spar Beam
Project 2 - Cantilever Wing Box Beam
Major Project 3 - Definition and time table - Define your own Major Project
Alternate Major Project 3 - Urica Wing Structure Design by FEM, Urica I- delta cp plot for cruise condition (.bmp),
                                                         Urica I- delta cp data file for cruise condition (.dat)
Major Project 3 Report Requirements
Project 4 - Laminated Plate Design
Project 5  - Stiffened Plate Buckling Design

Useful Sofware and Links (ENGR 214/AERO 304 related)

Engineering Equation Solver (EES) setup file & EES License file.  You must be an engineering student at TAMU in order to obtain and use the EES software which is licensed to the College of Engineering at Texas A&M University Click on the link here and follow the instructions. Once you obtain the software, install EES by double clicking on the setup_ees.exe icon.  This will install EES into a folder called Ees32.  Copy the license file (EES.dft) into the Ees32 folder.

MDSolids.  Software program that does a lot of "strength of materials" types of problems, i.e., trusses, beam bending and torsion, Mohr's Circle, shear and bending moment diagrams, and a LOT more.

Engineer's Toolbox - A nifty Engineer's Toolbox for structures and materials analysis/design.  Runs as a java applet in your browser.  Has many useful applications including stress analysis, dynamic analysis, fracture mechanics, numerical analysis and others.  You have to register before you can use.  The "Engineering Links" should also be useful in your structures courses.

StressAlyzer.  StressAlyzer is interactive courseware for learning and practicing solving problems in mechanics of materials.  To download, click on the link which takes you to Prof. Steif's web page.  To download the program file with Netscape, hold down the shift key while you click  the "Download Now" button.  Be careful to follow the installation and usage instructions (in the readme.txt file which will be located in the directory where the files will be located when uncompressed).  Start with the Load3D module in "review" mode and be sure you read carefully ALL instructions on how to use the program, enter answers, etc.  In ENGR 211, you will only be able to use the Load3D modules (problems 1-21).  The remaining modues are intended for material in ENGR 214.

West Point Bridge Designer.  This program uses truss analysis to help you design various bridge configurations.  Go to the link and follow the instructions for downloading and installing the software on your computer (a 4 megabyte file).  The developer of the program is LTC Stephen J. Ressler, Civil Engineering Department, West Point Military Academy.

Updated WPBD4.exe file.  Find the folder into which the original WPBD4.exe was installed (should be \Program Files\WPBD4, unless you changed the destination during setup), and copy this new WPBD4.exe into that folder, overwriting the old one.  You'll know you got it right if the banner says Version 4.0.4, rather than 4.0.3, when you start up the program.

My ENGR 214 web page.  See lecture notes on Conservation Principles (mass, linear and angular momentum, energy), strength of materials topics, heat transfer, etc. covered in ENGR 214.  Also other links to useful to stuff.

A ton of other fun software (primarily for ENGR 214) may be found at .  But a lot of stuff for ENGR 211 may also be found there.  Click on Multimedia; then click the ENGR 211 link.  For a truss analysis program, click on "Design Your Own Truss" or go directly there with this link This program is web-based and allows you to analyze any statically determinate two-dimensional truss to obtain the member forces.  Try some of the other links like the MATLAB truss program or the online statics tutorial.

Some Very Useful Information for Students

Tips on maintaining confidence, taking tests, understanding different learning styles, and identifying and taking advantage of learning resources on campus.  Follow this link to Professor Richard Felder's page for several useful and/or interesting articles for students. Professor Felder is the Hoechst Celanese Professor of Chemical Engineering at North Carolina State University and has contributed over 100 publications to the fields of engineering education and chemical process engineering.

Some Neat Links
[How Stuff Works fanbutton] Contains a series of articles written by by Marshall Brain, BYG Publishing, Inc., describing how machinery, engines, electrical and electronic devices, household stuff, etc. work. Written in layman's terms, but very informative; and some of the graphics is very nice.

Visits since 1/15/2001