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Mechanics of Materials
第9次开课
开课时间: 2024年09月02日 ~ 2024年12月31日
学时安排: 6-8小时每周
当前开课已结束 已有 34 人参加
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课程详情
课程评价(9)
spContent=Mechanics of Materials is an important course for engineering studies. The course offered by DUT is awarded both excellent courses of Liaoning Province and International Students Learning in China. All instructors have rich experiences and are well recognized for their teaching.
Mechanics of Materials is an important course for engineering studies. The course offered by DUT is awarded both excellent courses of Liaoning Province and International Students Learning in China. All instructors have rich experiences and are well recognized for their teaching.
—— 课程团队
课程概述






Mechanics of Materials is a science of appropriately applying the mechanical properties of materials in engineering practice. From three aspects, it answers

·  if the materials are strong enough to ensure that the designs will not break;

·  if the materials are stiff enough to make the designs function the way they are intended to;

·  if the columns are stable enough to avoid buckling.

The main objective of this course is to provide the engineers with methods of analyzing various machines and structure members; to optimize their designs with maximizing safety and minimizing cost; to offer students the fundamental concepts and skills for solving engineering problems.


授课目标

1. Let students obtain the knowledge of strength, stiffness and stability of deformable   members. Understand the basic principles of analysis and designs of structural members.

2. Master the fundamental concepts and calculations which will be widely used in the following study of specialized courses.

3. Improve students' professional abilities through the training of problem-solving.

4. Promote students' all around abilities, including creativity, communication, team-work and leadership, etc.

课程大纲
Stress
1.1 Introduction
1.2.1 Review Statics
1.2.2 Internal Loadings
1.3.1 Object and Material
1.3.2 Stress
1.4.1 Axial Force Diagram
1.4.2 Average Normal Stress in Axially Loaded Member
1.4.3 Problem Discussion_1
1.4.4 Problem Discussion_2
1.5 Average Shear Stress
1.6 Allowable Stress
1.7 Design of Simple Connections
Strain
2.1 Deformation
2.2 Strain
Mechanical Properties of Materials
3.1 Low Carbon Steel in Tension
3.2 The Stress-Strain Diagram
3.3 Mechanical Properties of Materials
3.4 Hooke's Law
3.5 Strain Energy
3.6 Poisson’s Ratio
3.7 Strength condition
Experiment _1
Experiment _2
Axial Load
4.1 Saint-Venant’s Principle
4.2 Elastic Deformation of an Axially Loaded Member (Displacement Calculation)
4.3 Principle of Superposition
4.4 Statically Indeterminate Axially Loaded Member
4.5 The Force Method of Analysis for Axially Loaded Member
4.6 Thermal Stress
4.7 Stress Concentration
Torsion
5.1 Torsional Deformation of a Circular Shaft
5.2 The Torsion Formula
5.3 Power Transmission
5.4 Angle of Twist
5.5 Statically Indeterminate Torque Loaded Members
5.6 Strain Energy in Torsion & Noncircular Shaft
Experiment _3_Torsion
Bending
6.1 Shear and Moment Diagrams
6.2 Graphical Method for Constructing Shear and Moment Diagrams
6.2 Construction of Moment Diagram by Principle of Superposition
6.2 Internal Loading Diagrams of Inclined or Curved Beams
6.2 Internal Loading Diagrams of Frames
6.3 Bending Deformation of a Straight Member
6.4 The Flexure Formula
6.5 Unsymmetric Bending
Experiment _4
Transverse Shear
7.1 Shear in Straight Members
7.2 The Shear Formula
7.3 Shear Stresses in Beams
7.4 Shear Flow in Built-up Members
7.5 Shear Flow in Thin-Walled Members
Combined Loadings
8.1 Thin-Walled Vessels
8.2 State of Stress Caused by Combined Loadings
Stress Transformation
9.1 Plane-Stress Transformation
9.2 General Equations of Plane-Stress Transformation
9.3 Principle Stresses and Maximum In-Plane Shear
9.4 Mohr's Circle —Plane Stress
9.5 Stress in Shafts Due to Axial Load and Torsion
9.6 Stress Variations Throughout a Prismatic Beam
9.7 Absolute Maximum Shear Stress
Strain Transformation
10.6 Material-Property Relationships
10.7 Theories of Failure
Experiment _5
Design of Beams and Shafts
11.1 Basis for Beam Design
11.2 Prismatic Beam Design
11.3 Fully Stressed Beam
11.4 Shaft Design
Deflection of Beams and Shafts
12.1 The Elastic Curve
12.2 Slope and Displacement by Integration
12.5 Method of Superposition
12.6 Statically Indeterminate Beam and Shaft —Method of Superposition
12.7 Improvement of the Stiffness of a Beam
Buckling of Columns
13.1 Critical Load
13.2 Ideal Column with Pin Supports
13.3 Columns Having Various Types of Supports
13.4 Critical Stress
13.5 Design of Columns
Experiment _ 6
展开全部
预备知识

Prerequisites: 

Calculus

Physics

Statics

Engineering Mechanics

参考资料


Textbook:

Mechanics of Materials (Fifth Edition), R.C.Hibbeler, High Educational Press, 2004

Reference book:

1. Engineering Mechanics:Statics(Twelfth Edition), R.C. Hibbeler, High Educational Press, 2004

2. Engineering Mechanics, J. L. Meriam, ISBN: 978-0-471-78703

常见问题

The most commonly encountered questions:

1. In Statics, the object is regarded as rigid body, where only external loads are considered.

2. In Mechanics of Materials, all bodies are deformable, where the internal reactions of materials are  computed according to the application of external loads.

3. Structural members are the assemblage of various materials, so the strength and stiffness of structural members are related to the materials' properties they are made of.

4. This course has a lot of content. To correctly understand the principles and concepts, many exercises must be done.

Dalian University of Technology
1 位授课老师
Lihua HUANG

Lihua HUANG

Professor

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