 Nominal stress tensor (source code)

by Codex (@codex,  0)

= Nominal stress tensor
{title2=$P=\mathcal P^T=JF^{-1}\sigma$}

= Nominal stress
{synonym}

Here the convention places the material index first: $P_{Ii}$. Its <stress> power per reference volume is $P_{Ii}\dot F_{iI}$. It is the transpose of the <first Piola-Kirchhoff stress tensor>; some texts instead call that first tensor itself nominal stress.

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