# Lec1 - Cause Displacement Deformation Distortion Effect...

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ME222 Fall 2010 Kwon Lect 1 ME222: Mechanics of Deformable Solids Patrick Kwon Professor Mechanical Engineering Michigan State University East Lansing, Michigan 1. Concept of Stress 1.1 Introduction Statics (and Dynamics) Mechanics of Materials (or Deformable Solids) Understanding the relationships between external loads and internal reactions on a body . Deals with the integrity, deformation and stability of a body. Pressure, Force & Moment Stresses Not measureable quantity Displacement, Deformation & Distortions Strains Measurable quantity Material Behavior Chalk (Axial, Bending & Torsion) Rubber vs. Steel Deformable Solids Pressure Force Moment

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Unformatted text preview: Cause: Displacement Deformation Distortion Effect: External loads Stress Strain Internal reaction ME222 Fall 2010 Kwon Lect 1 1.2 Review on Statics • Equation of Equilibrium Σ F x = 0 • Balance of Force: Σ F = 0 Σ F y = 0 Σ F z = 0 Σ M x = 0 • Balance of Moment: Σ M p = 0 Σ M y = 0 Σ M z = 0 2-D 2-D • Free Body Diagram • External Force • Surface Force & Traction • Body Force (weight) • Reactions A x A y B x B y P Pin Built-in A B P Cut Rigid end Boundary Conditions Two-force member In equilibrium Pin joints θ θ Only tension Cable Pin Built-in Sliding Pin ME222 Fall 2010 Kwon Lect 1 Tension in Cable No Force on Cable Force on Cable...
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Lec1 - Cause Displacement Deformation Distortion Effect...

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