Reply To: Fracture SMART – Crack growth Fatigue with Paris law – temp dependent constants

[Lydia]

Hi Tobias,

You can define a temperature-dependent crack growth law in a SMART Crack Growth analysis but you will need to employ some APDL commands.

"The constants can be defined as a function of temperature (TBTEMP or TBFIELD,TEMP) and/or stress ratio (TBFIELD,SRAT)" :  https://ansyshelp.ansys.com/account/secured?returnurl=/Views/Secured/corp/v241/en/ans_frac/franundcgrowmech.html%23fraccgrowmechanics

So, insert a Commands Object under your SMART Crack Growth Object; First apply Paris law  but then define the two temperature points like tbdata,1,C1,m1and tbdata,1,C2,m2

Then assign the crack growth law to crack CGROW (ansys.com) like:

cgrow,fcop,mtab,cglawid