We recently created 53 free Mechanics of Materials tutorials that together form a whole course. The course begins with introducing stress and strain, and then goes on to cover torsion, pure bending, composite materials, beam deflection, energy methods, and columns! There are tons of detailed explanations and worked examples to help you better understand and grasp Mechanics of Materials.

The Mechanics of Materials course section on Column Buckling is now complete! 7 new tutorials that cover buckling of centrically  loaded columns with various end conditions are covered:​

• Columns and buckling introduced
• Effective length of columns with different end conditions
• Column buckling example #1: both ends pinned
• Column buckling example #2: both ends fixed 
• Column buckling example #3: one fixed end, one free end
• Column buckling example #4:  one fixed end, one pinned end
• Column buckling example #5: with bracing

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New Energy Methods tutorials are up in the Mechanics of Materials course! There are 7 new tutorials that explain and go over examples of axial loading, bending, torsion, and trusses. Learn how to use strain energy to find deflections the fast way.

• Strain energy and strain density introduced
  
• Calculate elastic strain energy for a member with axial loading
  
• Calculate elastic strain energy for a cantilever beam with a point load
  
• Calculate elastic strain energy for a simply supported beam with a point load
  
• Calculate elastic stain energy for a member in torsion
  
• Truss deflection under a single load example problem #1 (virtual work)
• Truss deflection under a single load example problem #2 (virtual work)
  

New tutorials on Pure Bending of Composite Materials are up in the Mechanics of Materials course! The 6 tutorials in this section go over how to solve basic pure bending composite material problems as well as reinforced concrete. There are two full worked examples on the pure bending of reinforced concrete. Fear not the rebar you shall, young padawon.

• Pure bending of composite materials introduced
• Pure bending of composite materials worked example #1
• Pure bending of composite materials worked example #2
• How to solve pure bending problems for reinforced concrete
• Pure bending of reinforced concrete example #1
• Pure bending of reinforced concrete example #2 

The Pure Bending section of the Mechanics of Materials course is now live! Check out these 7 new tutorials that introduce the topic and go over some examples of pure bending in the elastic range:

• Pure bending introduced
• Geometry of pure bending problems
• Stress and strain in the elastic range due to pure bending
• Moment of inertia for composite shapes
• Elastic section modulus demonstration
• Pure bending in the elastic range example #1: rectangular beam
• ​Pure bending in the elastic range example #2: T-beam

The third section of the Mechanics of Materials course is now complete! It has 8 tutorials on torsion that will teach you how to use angle of twist, shearing strain, and shearing stress to find minimum shaft dimensions and more!

• Torques and angle of twist
• Angle of twist due to torsion in a shaft with varying cross section
• Shearing strain  due to torsion in a shaft
• Shearing stress due to torsion in a solid circular shaft
• Shearing stress due to torsion in a hollow circular shaft
• Find the minimum diameter of a solid circular shaft in torsion
• ​Find the minimum inner diameter of a hollow circular shaft in torsion
• Find the maximum permissible torque for a shaft of known dimensions

Section 2 of Mechanics of Materials is now up! There are 7 tutorials on engineering strain, including some examples of both statically determinate and indeterminate problems.

• Normal strain
• Stress strain diagram explained
• Hooke's law
• Normal strain in members with varying cross-sectional area
• Use Hooke's law to find deflection in a statically determinate frame
• Introduction to statically indeterminate problems and the principle of superposition
• Find the reactions of a statically indeterminate member with varying cross section

The first section in Mechanics of Materials is now up! These 5 tutorials provide an introduction to the course by introducing various types of internal stresses and the all important factor of safety!

• Normal stress
• Normal stress in members with varying cross-sectional area
• Shearing stress
• Double shear
• Bearing stress
• Factor of safety

72 free Statics tutorials are now complete and available for everyone interested in learning the basics of Structural Engineering!

Also known as Mechanics I, this FREE university level course starts at the basics of vector addition and subtraction, and progresses through 3D statics problems, trusses, frames & machines, shear force diagrams, bending moment diagrams, and more.