Discussion Closed This discussion was created more than 6 months ago and has been closed. To start a new discussion with a link back to this one, click here.
Fatigue life time curve for ABSplus
Posted Apr 26, 2016, 8:27 a.m. EDT Version 5.2 1 Reply
Please login with a confirmed email address before reporting spam
Good morning everyone, can I ask a particular question on COMSOL? How this program draws Strain versus life time curve?
1 Reply Last Post Apr 26, 2016, 10:24 a.m. EDT
Please login with a confirmed email address before reporting spam
Posted:
8 years ago
Dear Can
When evaluating fatigue in COMSOL you have to provide the material data yourself. In a fatigue simulation this data is related to the fatigue variables that define a load cycle and finally the fatigue output, such as for example number of cycles to failure, is computed. For strain-life relation you have three options: E-N curve, Basquin relation and Combined Basquin and Coffin-Manson relation. In the E-N option you simply specify the relation between strain amplitude and the corresponding life time, while in the two remaining options the fatigue data is defined with formulas.
Kind regards
Mateusz Stec
When evaluating fatigue in COMSOL you have to provide the material data yourself. In a fatigue simulation this data is related to the fatigue variables that define a load cycle and finally the fatigue output, such as for example number of cycles to failure, is computed. For strain-life relation you have three options: E-N curve, Basquin relation and Combined Basquin and Coffin-Manson relation. In the E-N option you simply specify the relation between strain amplitude and the corresponding life time, while in the two remaining options the fatigue data is defined with formulas.
Kind regards
Mateusz Stec