MEEM 6130 – Engineering Fracture Mechanics
Department of Mechanical Engineering - Engineering Mechanics
Michigan Technological University
  Spring 2017

Instructor: Prof. Gregory M. Odegard
Office: MEEM 810
Phone: (906)487-2329
Classroom: MEEM 402
Time: M,W,F 10:05-10:55 am
Office hours: M,W 11:00 am -12:30 pm,  or you can contact me by email to schedule an appointment.

Course description:
Development of the stress and deformation fields present near the tips of cracks. Uses elasticity solutions, plasticity corrections, and numerical methods in modeling these fields. Introduces fracture criteria and explains the various parameters used to develop these criteria.

Prerequisite courses:

MEEM 5110 - Continuum Mechanics/Elasticity

Required text:
R.W. Hertzberg, R.P. Vinci, J.L. Hertzberg “Deformation and Fracture Mechanics of Engineering Materials”, Fifth Edition, Wiley, 2013

Lectures will consist of material taken from the required textbook as well as from other sources.  All lectures will be recorded and available to students on Canvas.

Homework assignments:
The assignments are due by 4:00 pm of the posted due date. No late assignments will be accepted, however, the score of the lowest set will be discarded. Students are encouraged to work with others to complete the assignments, however, all work turned in must be original, not a simple copy of someone else’s work.  Students are encouraged to submit assignments directly to Canvas. However, if students want to submit paper copies and want to recieve full credit, multiple pages must be stapled together (no paper clips or fold-overs). The assignments will not be rigorously graded. Students are responsible for making sure that they understand all of the solution steps for each problem.

Project assignments:
Because finite element analysis (FEA) and anlysis of fracture test data are critical components of modern fracture mechanics, students will be assigned a series of projects that gradually build skills for using FEA and experimental data anlysis techniques to analyze cracks. FEA is not a pre-requisite for this course, and students with no background in FEA are still encouraged to take this class. All necessary FEA skills will be developed within this course. We will use ANSYS on these projects, which is one of the major FEA commercial codes. A written report will be required for each project assignment and will be turning in via Canvas.

The two exams will cover material from the homework problems and from the lectures.  Exam dates:
Grading distribution:
Homework assignments: 10%
Project assignments: 30%
Midterm exam: 30%
Final exam: 30%

Final grades will be based on the the students' scores relative to the average scores of the top members of the class.  Therefore, class performance plays a role in determining the final grade and the number of students who can earn each grade is not limited.  Letter grades: A (100% to 92%), AB (<92% to 88%), B (<88% to 80%), BC (<80% to 78%), C (<78% to 70%), CD (<70% to 68%), D (<68% to 60%)

Tentative Course Topics:

1.   Linear-elastic fracture mechanics
2.   Elastic-Plastic fracture mechanics
3.   Fracture of metals, ceramics, polymers, composites
4.   Environmentally-assisted cracking
5.   Fatigue crack growth
6.   Experimental fracture mechanics
7.   Computational fracture mechanics

University policies:
University policies for academic integrity; assessment; disability services; institutional equity; veterans and active duty military personnel; and equal opportunity, discrimination, and harassment can be found at