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frodal committed Jan 27, 2020
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2 changes: 2 additions & 0 deletions README.md
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Expand Up @@ -24,6 +24,8 @@ User defined material model for Abaqus/Standard and Abaqus/Explicit
| 16 | Hardening parameter, 0.0 or *τ*<sub>2</sub> |
| 17 | Tangent operator flag (1=Elastic tangent operator, 2=Consistent tangent operator) |

***Warning: Do not use a local coordinate system (CSYS) or a material orientation with this subroutine in Abaqus Standard. This will break the co-rotational formulation.***

Note that the Tangent operator flag, property number 17, is only used for Abaqus Standard,
and the Quasi-Newton solution technique should be used when the Elastic tangent operator is
selected. The Quasi-Newton solution technique is located under the step settings in the Abaqus
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2 changes: 1 addition & 1 deletion SCMMhypo-Manual

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