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MIM1355 and MIM1354, STRENGTH OF MATERIALS I, FALL 2002
INSTRUCTOR: Prof. Sinan Müftü, 369 SN, (617) 373-4743, smuftu@coe.neu.edu
T. A.: TBD
OFFICE HOURS: TBD
CLASS HOURS: Monday, Wednesday 7:50-9:30 pm
CLASS LOCATION : 308 Snell Engineering Center
LAB HOURS: TBD
PREREQUISITE: Engineering Mechanics (MIM 1250)
TEXTBOOK : Hibbeler, R.C., Mechanics of Materials, Fourth Edition, Prentice-Hall Inc., New Jersey, 2000.
WEB PAGE: I use Blackboard for daily activities of the class
COURSE DESCRIPTION:
This course explores the concept of stress and strain, state of stress
and strain at a point, and stress-strain relations and material properties. Investigates moment
of inertia of areas, stress and deformation of simple members under axial and torsional loads,
and stresses in symmetrical beam bending. Two-dimensional stress transformation will be shown.
Involves lab. sessions to support the lectures.
GOALS:
The following topics are considered essential in demonstrating an understanding of the
topics covered in this course:
- The concepts of stress and strain and the inter-relation between them.
- Two-dimensional transformation of stress.
- Finding stresses and deformations in simple structural members.
- The concept of second moment of areas of structural members.
INDICATOR QUESTIONS:
In order to ensure that the topics listed under the Goals of the course are understood by the students,
several indicator questions will be asked in quizes and/or exams.
The students are required to answer correctly at least 7/8 of indicator questions
in order to pass the course.
Three chances will be given to correctly answer a given indicator question.
LABORATORY:
Three laboratory experiments on tension, torsion and bending of materials are included in this course.
The labs are in 244 FR. You will be assigned to a laboratory group during the first week of class.
Completion of all laboratories is necessary in order to receive a passing grade in the course.
EXAMS AND GRADING:
- Homework and Laboratory Reports - 20%
- Two Mid-Term Exams - 20% each
- Final Exam - 40%
- Homework for the previous week's assignments is collected on Wednesday in class.
- No late homework will be accepted.
- Make-up exams will only be given under unusual conditions with the prior approval of the instructor. A grade penalty may be applied.
- Grades of Incomplete ("I" Grades) will be given only under extraordinary circumstances at the discretion of the instructor.
BOOKS ON RESERVE:
- Beer, F.P., and Johnston Jr., E.R., Mechanics of Materials, Second Edition, McGraw-Hill Inc., New York, 1992.
- Bickford, W.B., Mechanics of Solids: Concepts and Applications, Richard D. Irwin, Inc., Boston, 1993.
- Craig Jr., R.R., Mechanics of Materials, Second Edition, John Wiley & Sons, Inc., New York, 2000.
- Davis, H.E., Troxell, G.E., and Hauck, G.F.W., The Testing of Engineering Materials, Fourth Edition, McGraw-Hill Inc., New York, 1982.
- Gere, J.M., and Timoshenko, S.P., Mechanics of Materials, Third Edition, PWS-Kent Publishing Company, Boston, Massachusetts, 1990.
- Riley, W.F., Sturges, L.D., and Morris, D.H., Mechanics of Materials, Fifth Edition, John Wiley & Sons, New York, 1999.
- Popov, E.P., Engineering Mechanics of Solids, Second Edition, Prentice-Hall, Inc., Englewood Cliffs, New Jersey, 1999.
- Shames, I.H., Introduction to Solid Mechanics, Second Edition, Prentice-Hall, Inc., Englewoods Cliff, New Jersey, 1989.
Topics Covered in the Course
STRESS AND STRAIN
- Introduction, Equilibrium (1.1-1.2)
- Normal and Shear Stress (1.3-1.5)
- Allowable Stress and Design of Connectors (1.6-1.7)
- Concept of Strain (2.1-2.2)
- Stress vs. Strain (3.1-3.5)
- Elastic Stress-Strain Relations, Creep and Fatigue (3.6-3.8, 10.6)
TRANSFORMATION OF STRESS AND STRAIN
- Transformation of Plane Stress (9.1-9.3)
- Mohr's Circle for Plane Stress (9.4-9.6)
AXIAL LOADING
- Axially Loaded Members (4.1-4.2)
- Statically Indeterminate Bars (4.3-4.5)
- Thermal Stress (4.6)
- Stress Concentration, Inelastic Deformation, Residual Stress (4.7-4.9)
TORSION
- Stresses in a Circular Shaft in Torsion, Power Transmission (5.1-5.3)
- Angle of Twist (5.4)
- Statically Indeterminate Members (5.5)
BEAMS
- Second Moments of Areas (A.2)
- Review of Shear and Bending Moment Diagrams (6.1-6.2)
- Stresses in Pure Bending (6.3-6.4)
- Composite Beams (6.6-6.7)
- Transverse Loading, Shear Stresses (7.1-7.3)
- Shear Flow in Built-Up and Thin-Walled Members (7.4-7.5)
GENERAL TOPICS
- General State of Stress, Maximum Shearing Stress (9.7)
- Thin-Walled Pressure Vessels (8.1)
- Strain Transformation (time permitting), (10.1-10.5)
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