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4 cards from this section. Quick, good the night before a test.
What is strain?
Think of it as how much change occurs.
How is longitudinal strain calculated?
Use the formula: Strain = ΔL / L.
What is the equation for calculating strain?
Remember it’s a ratio.
Strain is uniform throughout a material?
Think about how different sections might stretch differently.
A beam of length 5 meters is compressed to 4.995 meters after an external load is applied. Calculate the longitudinal strain.
Pay attention to whether the material is expanding or contracting.
Two beams of different materials are tested. Beam A is made of steel and Beam B of aluminum, both initially 3 meters long. Beam A stretches to 3.003 meters and Beam B to 3.005 meters. Calculate the longitudinal strain for each beam and discuss how material properties affect these strains.
Analyze how material compositions relate to their strains under identical conditions.
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