Asst.Prof.Dr.Turgut AKYÜREK


Office: LA18

Office Telephone: 2331303

Lecture Hours: 

Tuesday 18:00–20:50 @Balgat A209

Office Hours: Tuesday 12:20-13:10. Appointments are accepted.

Web site:

Course Description: This course covers the following topics; lamina stress-strain relationships, effective moduli of a continuous fiber reinforced lamina, strength of continuous fiber-reinforced lamina, analysis of lamina hygrothermal behavior, analysis of discontinuously reinforced lamina, analysis of laminates, design of a composite structure and present. 

Course Objectives:

To make the students to learn;

  1. What composite materials are,
  2. How they are manufactured,
  3. What advantages and drawbacks composites have over metals,
  4. To develop mathematical models to understand the mechanical response of composites to mechanical and hygrothermal loads,
  5. How to use the above mathematical models to optimally design structures made of composites.


List the textbook(s), if any, and other related main course materials.




Publication Year


Ronald F. Gibson

Principles of Composite Material Mechanics, 4th ed.

CRC Press



Ever J. Barbero

Introduction to Composite Materials Design, 2nd Ed.

CRC Press



Autor K. Kaw

Mechanics of Composite Materials, 2nd ed.

CRC Press



Lecture notes are to be provided via the web site of the course (possibly before the lecture hour) as pdf files. These files will include PowerPoint slides presented in the class. Study sets will be posted on course’s web site at the beginning of each chapter. It is strictly recommended that the students review the topics by working on these study sets given for student’s benefit.

Examinations: There will be 1 mid-term examination, 1 final examination, 1 term project, and 5 quizzes. 

Assignments: Homework will be assigned 5 times. The students should do the homework, but will not be submitted for evaluation. They are to make the student ready for exams. They will be not be assessed within the overall grade of the student.

Attendance: According to the university regulations, students must attend at least 70 % of the lecture hours. Otherwise, the student gets NA (Not attended) from the course. Valid excuses are exempt from computation of these percentages. Due to risks of Covid 19, for this semester, attendance is optional, not compulsory.

Apart from the university regulations, it is of student’s benefit to attend all of the lecture hours.. 

Grading: Overall final grade will be over 1050 points. Weight of each grading item will be as below. Quiz question will be from the related homework.

    MT-1 exam grade over 250

    Term project grade over 250

    Final exam grade over 300

    Quiz grades over 200 (5 x 40)

    Final grade over 1000

All the announcements, including the examination dates will be posted on the course web site.

Reference Book

List the reference books as supplementary materials, if any.




Publication Year



Composite Materials: Design and Applications, 3rd ed.

CRC Press



Ever J. Barbero

Finite Element Analysis of Composite Materials Using Ansys, 2nd ed.

CRC Press




Fiber Reinforced Composites:Materials, Manufacturing, and Design, 3rd ed.

CRC Press




Tentative weekly course schedule:


Course Outline 

List the topics covered within each week.




1. Introduction

1.1. Basic Concepts

1.2. Constituent Materials for Composites

1.3. Structural Applications of Composites

1.4. Multifunctional Applications of Composites

1.5. Fabrication Processes

1.6. Elements of Mechanical Behavior of Composites

1.7. Review of Basic Mechanics of Materials Equations


2. Lamina Stress-Strain Relationships

2.1. Introduction

2.2. Effective Moduli in Stress-Strain Relationships

2.3. Symmetry in Stress-Strain Relationships

2.4. Orthotropic and Isotropic Engineering Constants

2.5. Specially Orthotropic Lamina

2.6. Generaly Orthotropic Lamina


3. Effective Moduli of a Continuous Fiber Reinforced Lamina

3.1. Introduction

3.2. Elementary Mechanics of Materials Models

3.3. Improved Mechanics of Materials Models

3.4. Elasticity Models

3.5. Semi-empirical Models


4. Strength of Continuos Fiber-Reinforced Lamina

4.1. Introduction

4.2. Multiaxial Strength Criteria

4.3. Micromechanics Models for Lamina Strength


5. Analysis of Lamina Hygrothermal Behavior

5.1. Introduction

5.2. Hygrothermal Degradation of Properties

5.3. Micromechanics Models for Hygrothermal Properties


7. Analysis of Laminates

7.1. Introduction

7.2. Theory of Laminated Beams

7.3. Theory of Laminated Plates with Coupling

7.4. Derivation and Use of Laminate Compliances

7.5. Hygrothermal Effects in Laminates

7.6. Interlaminar Stresses

7.7. Laminate Strength Analysis

7.8. Deflection and Buckling of Laminates

7.9. Selection of Laminate Designs

7.10. Application of Laminate Analysis to Composite Structures


Term Project Presentations