Menu

Discussion Forum

New Discussion
Filtra

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.

Truss in fatigue modelling

Posted 6 dic 2018, 03:26 GMT-5 1 Reply

Alexia Eng
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Is the fatigue model only available for solid mechanical modeling? How to simulate the fatigue model for truss modeling (edge molder)?

1 Reply Last Post 6 dic 2018, 08:24 GMT-5
Henrik Sönnerlind COMSOL Employee

Please login with a confirmed email address before reporting spam

Posted: 6 years ago 6 dic 2018, 08:24 GMT-5

Hi,

The Fatigue Module is to a large extent is geared towards multiaxial stress states. It can deal with solids, shells, and membranes. In a truss element, there is only a single stress component, so in most cases the fatigue evaluation can be done using pen and paper.

Furthermore, a truss representation is usually an abstraction where the actual geometry of the bar ends is ignored. That is however where fatigue problems would occur in the real structure.

Regards,
Henrik

-------------------
Henrik Sönnerlind
COMSOL
Hi, The Fatigue Module is to a large extent is geared towards multiaxial stress states. It can deal with solids, shells, and membranes. In a truss element, there is only a single stress component, so in most cases the fatigue evaluation can be done using pen and paper. Furthermore, a truss representation is usually an abstraction where the actual geometry of the bar ends is ignored. That is however where fatigue problems would occur in the real structure. Regards, Henrik

Note that while COMSOL employees may participate in the discussion forum, COMSOL® software users who are on-subscription should submit their questions via the Support Center for a more comprehensive response from the Technical Support team.

Suggested Content