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4 cards from this section. Quick, good the night before a test.
Define isotropic materials.
Think about homogeneity in mechanical properties.
What are Lame's constants?
Consider their role in the stress-strain relationship.
What defines isotropic materials?
Think about how they behave the same way no matter the stress direction.
True or False: Anisotropic materials can be isotropic.
Consider the definitions of both terms.
A rectangular beam made of isotropic material experiences uniform tension. If the original length is 10m and it elongates by 1mm under a stress of 50MPa, calculate the Young's modulus of the material.
Apply the relationship of stress and strain directly to find E.
If a cube of isotropic material with known Young's modulus is compressed and experiences a change in volume, how can you derive the bulk modulus using the relationship of stress and strain?
Think about the different components contributing to the change in volume in relation to pressure.
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