3D triaxial load secondary creep (NAFEMS Test 6(a))
Overview
The aim of this test case is to validate the following functionalities:
creep material behavior
standard and reduced integration elements
automatic time stepping
The simulation results of SimScale were compared to the analytical results in [NAFEMS_R27]. The tetrahedral meshes used were created with the parametrized-tetrahedralization-tool on the SimScale platform.
linear elastic, isotropic: $$E = 210 GPa$$, $$\nu = 0.3$$
creep formulation:
– Norton, A = 8.6805556e-48, n = 5
– Time Hardening, A = 8.6805556e-48, n = 5, m = 0
Important Information
The material Data of the reference was given in MPa, mm and h units and were converted to SI units using the following relation:
$$A_{SI} = rac{1}{3600} cdot rac{1}{10^{6n}} cdot A_{MPa;h}$$
The equations used to solve the problem are derived in [NAFEMS_R27]. As the SimScale solution is calculated using SI units, the reference solution was adopted to a time unit of seconds instead of hours.
Results
Comparison of the average creep strain $$\epsilon_{xx}^c$$ of the cube after a creep time of 3.6e6 s (1000 h) with the analytical solution presented in [NAFEMS_R27]:
Comparison of the creep strain $$\epsilon_{xx}^c$$¶
SimScale uses cookies to improve your user experience. By using this website you consent to our cookie policy. Don't worry, we are not storing any personal information.
This website uses cookies so that we can provide you with the best user experience possible. Cookie information is stored in your browser and performs functions such as recognising you when you return to our website and helping our team to understand which sections of the website you find most interesting and useful.
Strictly Necessary Cookies
Strictly Necessary Cookie should be enabled at all times so that we can save your preferences for cookie settings.
If you disable this cookie, we will not be able to save your preferences. This means that every time you visit this website you will need to enable or disable cookies again.