材料力學

Course Objectives: The objective of this course is that students will be introduced to and become familiar with the mechanical behavior of structural members subjected to a variety of different loading situations (axial tension, compression, shear force, torsion, bending and combined loadings). By the end of the semester, students will have acquired the skills necessary to determine the internal stresses and strains or displacements of structural elements under different loading conditions and apply these skills to achieve the optimum design of various structural members. Major Topics: Chapter 1: Tension, Compression, Shear Force Chapter 2: Axially Loaded Structural Members Chapter 3: Torsion Chapter 4: Shear Force and Bending Moment Chapter 5: Bending and Shear Stresses in Beams Chapter 7: Analysis of Stress and Strain Chapter 8: Applications of Plane Stress

應用力學

無備註

助教:

2次期中考及期末考(40%、40%、20%)

• 1. Tension, compression and shear (1.1-1.8)

  1.1 Introduction to mechanics of materials 1.2 Normal stress and strain 1.3 Mechanical properties of materials 1.4 Elasticity, plasticity and creep 1.5 Linear Elasticity, Hooke’s law, and Poisson’s ratio 1.6 Shear stress and strain 1.7 Allowable stresses and allowable loads 1.8 Design for axial loads and direct shear

  講授：

  7 classes

• 2. Axially loaded members (2.1-2.7)

  2.1 Introduction 2.2 Changes in lengths of axially loaded members 2.3 Changes in lengths under nonuniform conditions 2.4 Statically indeterminate structures 2.5 Thermal effect, misfits, and prestrains 2.6 Stresses on inclined sections 2.7 Strain energy

  講授：

  9 classes

• 3. Torsion (3.1-3.9)

  3.1 Introduction 3.2 Torsional deformations of a circular bar 3.3 Circular bars of linearly elastic materials 3.4 Nonuniform torsion 3.5 Stresses and strains in pure shear 3.6 Relationship between of elasticity E and G 3.7 Transmission of power by circular shafts 3.8 Statically indeterminate torsional members 3.9 Strain energy in torsion and pure shear

  講授：

  6 classes

• 4. Shear forces and bending moment (4.1-4.5)

  4.1 Introduction 4.2 Types of beams, loads, and reactions 4.3 Shear forces and bending moments 4.4 Relationships between loads, shear forces, and bending moments 4.5 Shear-force and bending-moment diagrams

  講授：

  5 classes

• 5. Stresses in beams (Basic topics) (5.1-5.10)

  5.1 Introduction 5.2 Pure bending and nonuniform bending 5.3 Curvature of a beam 5.4 Longitudinal strains in beams 5.5 Normal stresses in beams (linearly elastic materials) 5.6 Design of beams for bending stresses 5.7 Nonprismatic beams 5.8 Shear stresses in beams of rectangular cross section 5.9 Shear stresses in beams of circular cross section 5.10 Shear stresses in webs of beams with flanges

  講授：

  8 classes

• 7. Analysis of stress and strain (7.1-7.7)

  7.1 Introduction 7.2 Plane stress 7.3 Principal stresses and maximum shear stresses 7.4 Mohr’s circle for plane stress 7.5 Hooke’s law for plane stress 7.6 Triaxial stress 7.7 Plane strain

  講授：

  8 classes

• 8. Applications of plane stress (8.4-8.5)

  8.4 Maximum stresses in beams 8.5 Combined loadings

  講授：

  1 class

Goodno, B.J. and Gere, J.M., Mechanics of Materials, 9th Edition, Cengage Learning, 2016.

地點

EB315

時間

14:30~16:30, Tue. 10:10~12:00, Thu.

聯絡方式

slhung@mail.nctu.edu.tw