Bài giảng Strength of materials - Chương 1: Introduction - Nguyễn Sỹ Lâm
STRENGTH OF MATERIALS,
COURSE CODE:
INTRODUCTION: 2016
• Lecturers: Dr. Lam Nguyen-Sy (Nguyễn Sỹ Lâm), B6, Civil Eng Building
• Lectures:
Monday … pm – … pm, Room 304 H2 - 205H2 Building
Friday …pm – …pm, Room 403 H2
• Consultation:
(1) try your peer students,
(2) then try your tutor,
(3) then Lecturers (room …, Tuesday …-…pm & Wednesday …-...pm)
STRENGTH OF MATERIALS,
COURSE CODE:
INTRODUCTION: 2015
MAIN BOOKS
1. Đỗ Kiến Quốc, et al, Strength of Materials, 2007.
2. Hibbeler RC, Mechanics of Materials, Fifth Edition, 2003.
3. Gere JM, Mechanics of Materials, Fifth Edition, 2001.
4. Problems on Mechanics of Materials (Vietnamese)
AIMS
The subject aims:
- To equip the student with essential knowledge about external and
internal forces occurring in simple structural elements under the action
of various types of loadings.
- To understand the determination of the stresses, strains and
displacements produced by the loads.
- To furnish an understanding of the mechanical behavior of materials,
which is essential for the safe design of all structures in civil and
mechanical engineering.
LEARNING EXPECTATIONS…
What do you think the
STRENGTH OF MATERIALS
course should be dealing with?
LEARNING EXPECTATIONS…
A DAM: WHAT IS THE BASIC PRINCIPLE OF ITS
STRUCTURE?
LEARNING EXPECTATIONS…
A DOM: WHAT IS THE BASIC PRINCIPLE OF ITS
STRUCTURE?
LEARNING EXPECTATIONS…
A BRIDGE: WHY DOES IT HAVE THIS SHAPE? FOR BEAUTY
OR ANYTHING ELSE?
LEARNING EXPECTATIONS…
ANOTHER BRIDGE: IS THERE ANY IMPLICATION IN ITS
SHAPE EXCEPT BEAUTY?
LEARNING EXPECTATIONS…
SOME BRIDGE MODELS: ANY GENERAL PRINCIPLES?
LEARNING EXPECTATIONS…
HIGH-RISE BUILDING: WHY DO PEOPLE NEED THESE KINDS
OF STRUCTURES ?
LEARNING EXPECTATIONS…
At the end of this course, the student should be able to:
• Knowledge
- Draw the diagrams of internal forces: axial force, shear force, bending
moment
- Analysis of stresses, displacements of simple structures
- Identify of mechanical properties of materials.
- Analysis of stability of simple structures
• Skills
- Model from the real structures to analytical models
- Extend in the professional courses
- Explaining your works effectively in writing.
THIS COURSE PROVIDES THE VERY FIRST BASE OF ALL
CIVIL ENGINEERS, MECH. ENGINEERS – LIKE CHILDREN
LEARN HOW TO SPELL.
Assessment Components
Final Exam
Lab practices
60 %
20 %
At end of semester
From week 12
Big Assignment (homework) 10 %
At end of week 12 – Hand writing –
must do
Assignments or Mid Exam. 10 %
During the course
(at class)
Penalty for missing tutorials 1 % per miss Missing 3 or more tutorials may
result in failing the course, unless
justified via a special consideration
form.
Notes:
- All assignments and Exam are practice problems, no purely
theoretical questions (i.e. No learn by heart answers).
- No purely theory.
COURSE OUTLINE
Section
1
Content
Tasks/Milestone
Begins with a review of the fundamental concepts and assumptions and the
importance of satisfying equilibrium
2
3
Theory of internal forces is described
Analysis of normal stress in axial loaded members and discussion of some of the
mechanical properties are given
4
Concept of state of stress and the relations of stresses and strains are presented
Application of various theories of failure are presented
5
6
7
Geometric properties of cross sections are presented
Bending problem in-plane, stress-strain relationship, ultimate stress
8
Displacements of beams under bending moments
Torsion problems
9
Assignment 1 due
10
Combined forces problems
11
12
Stability problems
Final Exam.
Learning Strategies
• Text books
• Weekly lectures will be used to extend the
practical exercise
• Homework of each week
• Understand the summaries, notes, conclusions
CHAPTER 1: BASIC CONCEPTS
1.1 BASIC CONCEPTS OF STRENGTH OF MATERIALS COURSE
1.2 ENGINEERING SHAPES
1.3 EXTERNAL FORCES – SUPPORTS/CONNECTION – REACTION
FORCES
1.4 BASIC OF FORCE – DEFORMATION STYLES
1.5 HYPOTHESES
1.1 BASIC CONCEPTS OF STRENGTH OF
MATERIALS COURSE
What is “MECHANICS OF MATERIALS” (SBVL là gì) ?
• Mechanics of Materials is a branch of Applied Mechanics that
deals with the behavior of DEFORMABLE solid bodies subject to
various types of loading.
• Other names:
Strength of Materials
Mechanics of Deformable Bodies
1.1 BASIC CONCEPTS OF STRENGTH OF
MATERIALS COURSE
What is “MECHANICS OF MATERIALS”?
• Mechanics of Materials is a branch of Mechanics that develops
relationships between the external loads (ngoại lực) applied to a
deformable body (vật thể biến dạng được) and the internal forces
(nội lực) acting within the body.
1.1 BASIC CONCEPTS OF STRENGTH OF
MATERIALS COURSE
OBJECTIVES
STRENGTH CONDITIONS (đ/k bền)
no failure (không bị phá hoại) – ULTIMATE LIMIT STATE
RIGIDITY CONDITIONS (đ/k cứng)
no extra deformation (không biến dạng quá mức) –
SERVICEABILITY LIMIT STATE
STABILITY CONDITION (đ/k ổn định)
retain the initial deformation state
… advanced conditions
1.2 ENGINEERING SHAPES
(1) SOLID
1.2 ENGINEERING SHAPES
Pyramids and their structures
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