Introduction to Properties of Materials

1
Introduction to Properties of Materials

• UAA School of Engineering
• CE 334 - Properties of Materials
• Lecture 1

2
Course Objectives

• Familiar with mechanical properties of materials
• Develop skill in methods of observation
• Learn the accepted methods of testing
• Gain appreciation for the significance of data
• Strengthen grasp of the principles of Mechanics
  of Materials
• Become acquainted with standards and technical
  literature
• Improve ability to report
• the results of investigations.

3
Principal Materials used in Civil Engineering

• Metals
• Woods
• Portland Cement Concrete
• Asphalt Cements Mixtures
• Clay Products
• Masonry Materials
• Snow and Ice

4
Classes of Material Properties

• General
• Chemical
• Physicochemical
• Mechanical
• Thermal
• Electrical and magnetic
• Acoustical
• Optical

5
General Properties of Engineering Materials

• Density or Relative Density
• Porosity
• Moisture Content
• Macrostructure
• Microstructure

6
Chemical Properties of Engineering Materials

• Oxide or Compound Composition
• Acidity or Alkalinity
• Resistance to Corrosion or Weathering

7
Physicochemical Properties of Engineering
Materials

• Water-absorptive or water-repellent action
• Shrinkage and swell due to moisture change.

8
Mechanical Properties of Engineering Materials

• Strength
• Tension, compression, shear, and Flexure
• Static, impact, and endurance
• Stiffness
• Elasticity/Plasticity
• Ductility/Brittleness
• Hardness wear resistance

9
Thermal Properties of Engineering Materials

• Specific Heat
• Expansion
• Conductivity

Electrical and Magnetic Properties of Engineering
Materials

• Conductivity
• Magnetic permeability
• Galvanic action

10
Acoustical Properties of Engineering Materials

• Sound Transmission
• Sound Reflection

Optical Properties of Engineering Materials

• Color
• Light transmission
• Light reflection

11
Experimental Studies

• Technique of Testing
• Physical and mechanical principles involved in
  the testing apparatus and procedure
• Theory of Measurements
• Variability of materials
• Interpretation of results
• More discussion in the
• following lectures

12
Considerations for Material Selection in Design
and Manufacture I

• Kinds of materials available
• Properties of various materials
• Service requirements for materials
• Relative economy

13
Considerations for Material Selection in Design
and Manufacture II

• Methods of preparation or manufacture of various
  materials or products and the influence of
  processing on their properties
• Methods of specification and their relation to
  uniformity and dependability of product secured
• Methods of testing and inspection and their
  significance with respect to measures of desired
  properties.

14

• The End