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Relationship between kinetics (stress, stress rate) and kinematics (strain, strain-rate) determines constitutive properties of materials.
Internal constitution describes the material's response to external thermo-mechanical conditions. This is what distinguishes between fluids and solids, and between solids wood from platinum and plastics from ceramics.
Elastic
solid
Uniaxial test:
The test often used to get the mechanical properties
Load-displacement
response
Next: 5.1(b) The
Elastic Solid and Elastic Boundary Value Problems