Fatigue of Structures and Materials

Development and application of methods for predicting the fatigue life of structural components. Characterization and response of materials to cyclic loading. Fatigue resistant design of structures. Both fatigue crack initiation and crack propagation concepts are discussed.

AAE55400

Credit Hours:

3

Learning Objective:

To develop methods for characterizing fatigue resistance of materials and predicting cyclic lives of structural components; discuss approaches for preventing fatigue failures through materials selection, fatigue resistant design, and "fleet management" concepts. Both crack initiation (stress and strain based) and crack propagation (fracture mechanics) approaches are developed and compared. While general class concepts compare to a variety of structures, emphasis throughout is on aerospace applications.

Description:

Development and application of methods for predicting the fatigue life of structural components. Characterization and response of materials to cyclic loading. Fatigue resistant design of structures. Both fatigue crack initiation and crack propagation concepts are discussed.

Topics Covered:

Characteristics of fatigue failure mode; Examples of service failures. Fatigue Crack Formation. Fatigue Crack Growth. Misc Fatigue Topics/Applications.

Prerequisites:

Prior course in strength of materials.

Applied / Theory:

50 / 50

Web Address:

https://mycourses.purdue.edu

Web Content:

Syllabus, grades, lecture notes, homework assignments, solutions, chat room, and message board.

Homework:

Approximately ten homework assignments.

Projects:

None.

Exams:

One one-hour exams and one two-hour comprehensive final exam.

Textbooks:

Official textbook information is now listed in the Schedule of Classes. NOTE: Textbook information is subject to be changed at any time at the discretion of the faculty member. If you have questions or concerns please contact the academic department.
Required: Metal Fatigue in Engineering, Ali Fatemi, Wiley-interscience, 9780471510598

Computer Requirements:

Some homework assignments will entail ability to solve equations on a spreadsheet. It is also anticipated that some demonstrations and/or optional assignments would entail running fatigue life prediction software. Supplemental reading material will be available on the course web site.