Hi, I am new to Comsol. I am trying to model stress intensity factors around a crack. All the variables I have set up thus far works, such as strain energy density, traction vectors and the so called J-integral. However, when I try setting up the function for stress intensity factor:
sqrt(Young's modulus*J-integral)
which should be in units of Pa*m^1/2, I keep getting a 'unit syntax error' response, and the function does not seem to work properly. I have re-checked my input parameters and I am sure they are correct, so I am not sure why it is not allowing me to derive the stress intensity factor in units of stress times the root of a distance, which is the standard method for this type of calculation.
Any suggestions on how best to handle such calculations will be appreciated.
Thanks,
Amrit
sqrt(Young's modulus*J-integral)
which should be in units of Pa*m^1/2, I keep getting a 'unit syntax error' response, and the function does not seem to work properly. I have re-checked my input parameters and I am sure they are correct, so I am not sure why it is not allowing me to derive the stress intensity factor in units of stress times the root of a distance, which is the standard method for this type of calculation.
Any suggestions on how best to handle such calculations will be appreciated.
Thanks,
Amrit