Structural Engineering & Statics
where the load goes
Series

Elastic modulus — the series

One essay so far on this idea, and more questions about it than one essay answers.
  1. Four materials pulled until they stop. Four stress-strain curves — mild steel, aluminium alloy, concrete, timber, along the grain — plotted to a strain of 0.6%. One of them has a plateau, so the stress at which yielding starts is something the specimen does rather than something anyone chooses. No offset construction is drawn.

    The one number a stronger steel does not change

    Geometry beats material almost everywhere on this site. Stiffness is the exception in the other direction — it cannot be bought at all, because every steel ever made has the same elastic modulus.

    part 1 · materials

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