From 2f6219a9c79e0f9d8ac52f75c3e305eabb1e34e6 Mon Sep 17 00:00:00 2001
From: FEA-eng <59876896+FEA-eng@users.noreply.github.com>
Date: Sat, 2 Mar 2024 17:03:44 +0100
Subject: [PATCH] Update material_mechanicalnonlinear.py

---
 src/Mod/Fem/femobjects/material_mechanicalnonlinear.py | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/Mod/Fem/femobjects/material_mechanicalnonlinear.py b/src/Mod/Fem/femobjects/material_mechanicalnonlinear.py
index 7d56f122ebb6..a616b3410d81 100644
--- a/src/Mod/Fem/femobjects/material_mechanicalnonlinear.py
+++ b/src/Mod/Fem/femobjects/material_mechanicalnonlinear.py
@@ -91,6 +91,11 @@ def add_properties(self, obj):
             obj.MaterialModelNonlinearity = choices_nonlinear_material_models
             obj.MaterialModelNonlinearity = choices_nonlinear_material_models[0]
 
+        if hasattr(obj, "MaterialModelNonlinearity") and obj.MaterialModelNonlinearity == "simple hardening":
+            updated_choices_nonlinear_material_models = ["isotropic hardening", "kinematic hardening"]
+            obj.MaterialModelNonlinearity = updated_choices_nonlinear_material_models
+            obj.MaterialModelNonlinearity = updated_choices_nonlinear_material_models[0]
+
         if not hasattr(obj, "YieldPoints"):
             obj.addProperty(
                 "App::PropertyStringList",