Structural Mechanics (CE- 312)
INTRODUCTION
Dr. Nauman KHURRAM
Assistant Professor
Department of Civil Engineering
UNIVERSITY OF ENGINEERING
& TECHNOLOGY LAHORE
INTRODUCTION
➢Course Contents.
➢List of Reference of books
➢Assessment Methods
➢Objectives of the Course
➢Course Policy
➢Course Learning Outcomes (CLOs)
➢Introduction to Structural Mechanics
By. Dr. Nauman KHURRAM
Department of Civil Engineering, UET Lahore
2
Teachers
Section
Theory
All Sections
Dr. Nauman KHURRAM
Sect A
Lab
Theory
All Sections
Dr. Qasim Shaukat KHAN
Sect B
Lab
Sect C &D
Lab
Dr. Rizwan AZAM
By. Dr. Nauman KHURRAM
Department of Civil Engineering, UET Lahore
3
List of Reference Books
➢ Andrew Pytel and Jaan Kiusalaas, Mechanics of
Materials, 2nd Edition, (2012), Cengage Learning, USA.
➢ R. C. Hibbeler, “Mechanics of Materials”, 8th Edition,
Published by Prentice Hall 2011.
➢ Ferdinand Beer, Jr., E. Russell Johnston, John DeWolf,
David Mazurek, “Mechanics of Materials” 6th Edition,
Published by McGraw-Hill 2011.
➢ Zahid A. Siddiqi (2014) “Mechanics of Material” , Help
Civil Engineering Press.
➢ F.V. Warnock, P.P. Benham and R.J. Crawford, “Mechanics
of Engineering Materials”.
By. Dr. Nauman KHURRAM
Department of Civil Engineering, UET Lahore
4
Course Contents
TOPIC
# Contact
# Weeks
hours*
Transformation of Stresses and Strain:
Analysis of stress and strain at any point due to
combined effect of axial force, shear force,
bending and twisting moment. Mohr’s circle for
stresses and strains, relationship between elastic
constants.
Experimental Stress Analysis:
Stain rosette solution
3.5
11
1
3
1.5
5
Introduction to Theory of Elasticity:
Stress tensor, plane stress and plane strain
problems and formulation of stress function.
By. Dr. Nauman KHURRAM
Department of Civil Engineering, UET Lahore
5
TOPIC
Theories of Yielding/Failure for ductile
and brittle materials.
Biaxial Bending of symmetrical and
unsymmetrical sections
Shear Stress Distribution in thin walled
open sections and shear center.
Columns: Stability of columns, conditions
of equilibrium, eccentrically loaded
columns, initially imperfect columns
Thin, Thick Cylinders
Stress Distribution in Thick and thin
cylinders
Total
By. Dr. Nauman KHURRAM
# Weeks
# Contact
hours*
1
2
2.5
7
2
6
2
6
1.5
5
15
45
Department of Civil Engineering, UET Lahore
6
Assessment Methods for Theory Part
Assessment Type
Weight %
Date
Assignments +
At the End of each topic
Class Participation
10
First Quiz
In the 6th week
10
Mid Exam
In the 8th week
30
Second Quiz
In 13th week
10
Final Exam
At the End of the Semester as per
the University Final Exam
Schedule
40
All exams are
close-book
By. Dr. Nauman KHURRAM
Total
Department of Civil Engineering, UET Lahore
100
7
Course Policy
Attendance Regular attendance is expected in both theory and
tutorial classes. Student should notify the instructor for
any planned absence. University regulations regarding
absence will be strictly applied for sitting in final exam.
Students
Conduct
• No late attendance for the class (you are not allowed to
attend the class if you are 10 min. late). If you repeat
late attendance, each 2 late attendance will be
considered as one full class missing.
• If you failed to attend 75% of the classes (UET Rules),
you will be dismissed from the course.
Students should adhere to the academic integrity and
ethics. Cheating is absolutely not tolerated. University
regulations will be enforced and applied on any student
who do or try cheating.
By. Dr. Nauman KHURRAM
Department of Civil Engineering, UET Lahore
8
Course Policy
Students’
works
Will be assigned with their due dates during lectures.
Late works will be subjected to a penalty of 20% of the
grade for each overdue day, for a maximum of 3 days. No
work will be accepted after 3 days.
• Beware of Plagiarism: Copying and handing in for
credit someone else's work. Any plagiarism case will
result in an automatic ‘F’ for the course.
Only simple scientific calculators are allowed during
examinations/quizzes. Use of mobile phones and similar
Calculator
devices as calculator is strictly prohibited in examinations
and quizzes.
Students may add/drop the course within two weeks from
the start of semester. Student may apply for withdrawn
Grading
(W grade) during first 6 weeks of semester
By. Dr. Nauman KHURRAM
Department of Civil Engineering, UET Lahore
9
Course Learning Outcomes (CLOs)
CLOs
Description
PLOs Level
Students will be able to compute the bending and
CLO1 shear stresses in the section subjected to
unsymmetrical bending.
PLO4
High
CLO2
Students will be able to compute the principal
stresses and strains when member is subjected to
complex loading
PLO2
High
CLO3
Students will be able to calculate the stresses and
strains in shells applying think and thick shell theory
PLO4
High
Students will be able to analyze and design columns
CLO4 subjected to various loading and different end
conditions
PLO3
High
To exhibit commitment towards time management,
punctuality and honesty
PLO3
High
CLO5
By. Dr. Nauman KHURRAM
Department of Civil Engineering, UET Lahore
10
Lab Part - Course Learning Outcomes (CLOs)
CLOs
Description
PLOs Level
To imitate experiments for assessing the structural
CLO1 behavior of materials under axial, tension and
torsional loading.
PLO4
High
Students will be able to demonstrate the knowledge
CLO2 of stresses and strains for the behavior of structural
members
PLO1
High
Students will be able To practice experiments
CLO3 related to unsymmetrical bending behavior of Z
section and shear behavior of Channel section
PLO4
High
Students will be able to practice experiment for the
CLO4 determination of stresses and strains using strain
gauges and strain rosette.
PLO4
High
By. Dr. Nauman KHURRAM
Department of Civil Engineering, UET Lahore
11
Lecture Delivery Plan
Teacher
Sect.
Week
Dr.
Nauman
Khurram
B&C
1-4
Dr. Qasim
Shaukat
A&D
1-4
Dr.
Nauman
Khurram
A&D
5-8
Dr. Qasim
Shaukat
B&C
5-8
By. Dr. Nauman KHURRAM
Topic
Biaxial Bending: Symmetrical and unsymmetrical
sections
Shear Stress Distribution: Shear stress in thin walled
open sections and shear center.
Transformation of Stresses and Strain: Analysis of
stress and strain at any point due to combined effect of
axial force, shear force, bending and twisting moment.
Mohr’s circle for stresses and strains, relationship between
elastic constants.
Biaxial Bending: Symmetrical and unsymmetrical
sections
Shear Stress Distribution: Shear stress in thin walled
open sections and shear center.
Transformation of Stresses and Strain: Analysis of
stress and strain at any point due to combined effect of
axial force, shear force, bending and twisting moment.
Mohr’s circle for stresses and strains, relationship between
elastic constants.
Department of Civil Engineering, UET Lahore
12
Teacher
Sect.
Week
Dr.
Nauman
Khurram
A&D
10-13
Dr. Qasim
Shaukat
B&C
10-13
Dr.
Nauman
Khurram
A&D
14-16
Dr. Qasim
Shaukat
B&C
14-16
By. Dr. Nauman KHURRAM
Topic
Columns: Stability of columns, conditions of equilibrium,
eccentrically loaded columns, initially imperfect columns
Thin, Thick Cylinders: Stress Distribution in Thick and
thin cylinders
Experimental Stress Analysis: Stain rosette solution
Introduction to Theory of Elasticity: Stress tensor, plane
stress and plane strain problems and formulation of stress
function.
Theories of Yielding/Failure: Failure of ductile and
brittle materials.
Columns: Stability of columns, conditions of equilibrium,
eccentrically loaded columns, initially imperfect columns
Thin, Thick Cylinders: Stress Distribution in Thick and
thin cylinders
Experimental Stress Analysis: Stain rosette solution
Introduction to Theory of Elasticity: Stress tensor, plane
stress and plane strain problems and formulation of stress
function.
Theories of Yielding/Failure: Failure of ductile and
brittle materials.
Department of Civil Engineering, UET Lahore
13
Introduction to Structural Mechanics
Structural mechanics or Mechanics of structures is the
computation of deformations, deflections, and
internal forces or stresses (stress equivalents) within
structures, either for design or for performance evaluation
of existing structures.
Structural mechanics analysis needs input data such
as structural loads, the structure’s geometric
representation and support conditions, and the materials
properties. Output quantities may include support
reactions, stresses and displacements.
By. Dr. Nauman KHURRAM
Department of Civil Engineering, UET Lahore
14
There are three approaches to the analysis:
1. Energy Methods
These are methods based on linear elastic behavior
and conservation of energy, i.e. the work done by
external forces equals the energy stored in the
structure under load.
Expresses the relationships between stresses, strains or
deformations, displacements, material properties, and
external effects in the form of energy or work by
internal forces.
By. Dr. Nauman KHURRAM
Department of Civil Engineering, UET Lahore
15
2. Finite Element Method
In the FEM, the structural system is modeled by a set
of appropriate finite elements interconnected at points
called nodes. Elements may have physical properties
such as thickness, coefficient of thermal
expansion, density, Young's modulus, shear
modulus and Poisson's ratio.
3. Plastic analysis approach
Plastic analysis is defined as the analysis in which the
criterion for the design of structures is the ultimate
load. We can define it as the analysis in which
inelastic material is studied beyond the elastic limit.
By. Dr. Nauman KHURRAM
Department of Civil Engineering, UET Lahore
16