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Key Equations

First Equilibrium Condition kFk=0kFk=0
Second Equilibrium Condition kτk=0kτk=0
Linear relation between
stress and strain
stress=(elastic modulus)×strainstress=(elastic modulus)×strain
Young’s modulus Y=tensile stresstensile strain=FAL0ΔLY=tensile stresstensile strain=FAL0ΔL
Bulk modulus B=bulk stressbulk strain=ΔpV0ΔVB=bulk stressbulk strain=ΔpV0ΔV
Shear modulus S=shear stressshear strain=FAL0ΔxS=shear stressshear strain=FAL0Δx
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