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Strains – Strengths Chapter 10

February 13, 2013 in Current Lectures, Strengths of Materials

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Strains Lecture Notes

Chapter 10

Structural materials deform under the action of forces.  This includes increasing of length- elongation, decrease in length – contraction, and change in shape – angular distortion.  Deformation per unit length is called linear strain. Topics to be covered include; Linear Strain, Hooke’s Law, Axial Deformation, Statically Indeterminate Problems, Thermal Stresses, Poisson’s Ratio, and Shear Strain.

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Mechanical Properties of Materials – Strengths Chapter 11

February 13, 2013 in Current Lectures, Strengths of Materials

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Mechanical Properties of Materials Lecture Notes

Chapter 11

Testing of materials will produce tress-strain diagrams that can be further examine to determine important properties of materials, including modulus of elasticity, yield and ultimate strengths  stiffness, elastic and plastic behavior, ductility, and others. Topics to be covered include; The Tension Test, The Stress-Strain Diagram, Mechanical Properties of Materials, The Compressin Test, Allowable Stresses and Factor of Safety, Stress Concentrations, and Elastic Design Versus Plastic Design.

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Strengths – Torsion of Circular Shafts – Chapter 12

February 13, 2013 in Current Lectures, Strengths of Materials

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Torsion of Circular Shafts Lecture Notes

Chapter 12

A member subject to twisting moments is called a shaft.  Only solid or hollow circular shafts will be discussed in this chapter.  Topics that will be covered include; External and Internal Torques, The Torsion Formula, Shear Stresses on Mutually Perpendicular Planes, Power Transmission, and Angle of Twist.

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Shear Forces and Bending Moments in Beam

February 13, 2013 in Current Lectures, Strengths of Materials

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Shear Forces and Bending Moments in Beams –  Lecture Notes

Chapter 13

Beams are subjected to bending,  Any member subject to bending may be referred to as a beam.  The main objective of this chapter is to determine the internal forces at various sections along a beam.

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