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Tensile test and stress–strain

Compare specimen elongation and necking with its stress–strain curve.

    E06 · Tensile test and stress–strain0.00 s · Ready

    Mechanical Engineering · Structures and materials / Principles and inquiry

    Tensile test and stress–strain experiment guide

    Compare specimen elongation and necking with its stress–strain curve.

    How does it work?

    The elastic stress–strain slope is Young modulus.

    Key relationship

    σ = Eε (elastic) · F = σA · ε = rate × t

    Try this investigation

    1. Compare specimen elongation and necking with its stress–strain curve.
    2. Run and record each of the three reference settings.
    3. Change one variable and compare force, deformation or response with the reference records.

    Interpreting your results

    At equal stress, what happens to force with larger area?

    It gets bigger · The elastic stress–strain slope is Young modulus.

    Assumptions and limitations

    Piecewise engineering stress uses representative constants. Wood is simplified with a ductile comparison curve. Rate only changes reached strain; rate dependence is omitted. Do not reproduce fracture tests.