Upper-convected derivative Created 2026-09-24 Updated 2026-11-05
The upper-convected derivative of a contravariant tensor is .
Upper-convected rate as a stress push-forward Created 2026-10-14 Updated 2026-11-05
Differentiate the Kirchhoff stress tensor relation , using for the velocity gradient. Subtracting the two deformation terms gives the displayed upper-convected derivative. This removes the transport generated solely by deformation of a fixed material stress tensor.