Statics and Strength of Materials ECIV 2306

The Islamic University of Gaza

Faculty of Engineering

Department of Environmental Engineering

Statics and Strength of Materials ECIV 2306

1St Semester 2011/2012


Download Course Outlines Here

Course Scope:

This course is furnished to provide the Environmental Engineering students with the basic skills in statics and strength of materials. Such skills are considered as pre-requisites for several courses in the environmental engineering curriculum. Among the main concepts that are covered in this course are vectors, equilibrium of a particle, equilibrium of a rigid body, trusses and frames, internal forces, centroids, and moment of inertia, concept of stress, stress and strain-axial loading and pure bending


Course Goals:

This course is designed to provide you with a clear and thorough demonstration of the theory and applications of engineering statics. A complete understanding of concepts involved in statics is absolutely critical to successfully becoming an engineer. Materials covered in this course are crucial to just about every subsequent engineering courses you will take, and every one of these courses will build off the knowledge you gain in this course.

Text Book and References

  •  Engineering Mechanics: Statics, R.C. Hibbeler, 12th  edition, Prentice Hall, 2010.
  • Mechanics of Materials, by F. Beer , E. Johnston & J. DeWolf , 3nd Edition, McGraw-Hill Book Company, UK, 2001
  • Several textbooks and references are available in the IUG Central Library.

Course Content

Part A:   Statics

1-       Force Vectors (lecture 1.1)

1.1  Scalars and vectors

1.2  Vector operations

1.3  Vector addition of forces (Parallelogram law , Trigonometry)

1.4  Addition of a system of coplanar forces (2-D cartesian vectors and  resultants)

2-     Equilibrium of a particle (lecture 2.1)

2.1  Condition of the equilibrium of a particle

2.2  The free- body diagram

2.3  Coplanar forces system (2-D equilibrium)

3-     Force System Resultants (lecture 3.1,lecture 3.2,lecture 3.3,lecture 3.4)

3.1  Moment of a force – scalar formulation

3.4  Transmissibility of a force and the principle of moments

3.6  Moment of a couple

3.7  Simplification of a force and couple system

3.9  Reduction of a simple distributed loading

4-     Equilibrium of a Rigid Body (lecture 4.1,lecture 4.2)

4.1  Conditions for rigid- body equilibrium

4.2  Free- body diagram (2-D)

4.3  Equations of equilibrium (2-D)

4.4  Two and three force members

5-     Center of Gravity and Centroid (lecture 5.1,lecture 5.2)

5.1  Center of gravity, center of mass, and centroid of  a body

5.2  Composite bodies

6-     Moment of Inertia (chapter 10-1,chapter 10-2

6.1  Definition of moments of inertia for areas

6.2  Parallel axis theorem for an area

6.3  Radius of gyration of an area

6.4  Moments of inertia for composite areas

7-     Structural Analysis (Lecture 6.1,Lecture 6.2)

7.1  Simple trusses

7.2  The methods of joints

7.3  Frames and machines

8-     Internal Forces

8.1  Internal forces developed in structural members

8.2  Shear and moment equations and diagrams

 Part B:   Strength of Materials

1-       Introduction-Concept of Stress

1.1  Introduction

1.2  A short review of the methods of Statics

1.3  Stresses in the members of a structure

1.4  Analysis and design

1.5  Axial loadings: Normal stresses

1.6  Shearing stresses

1.7  Bearing stresses in connections

1.8  Application to the analysis and design of simple structures

1.9  Design considerations

2-       Stress and Strain-Axial Loading

2.1  Introduction

2.2  Normal strain under axial loading

2.3  Stress-Strain Diagram

2.4  True stress and true strain

2.5  Hooke’s Law; Modulus of Elasticity

2.6  Elastic versus plastic behavior of material

2.7  Poisson’s Ratio

2.8  Multi-axial loading; Generalized Hooke’s Law

2.9  Dilatation; Bulk Modulus

2.10  Shearing Strain

3-       Pure Bending

3.1  Introduction

3.2  Symmetric member in pure bending

3.3  Deformations in symmetric member in pure bending

3.4  Stresses and deformations in the elastic range

Teaching Methods

Theoretical discussions of each new concept with limited number of examples are provided by the instructor. This type of teaching is provided every 3 hours per week. Teaching assistant provides a 1 hours per week in which he/she conducts discussions type of teaching to solve pre-assigned homework problems. The instructor or his assistant may use the traditional chuck board teaching tool or transparency projector tool.

Assessment of Learning

The final grade will be assigned as follows:
          Assignments and Quizzes:                     15 %

          Mid-Term Examination:                        30 %
          Final Examination:                                 55

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