Defining Material Property Answered
Hi,
I am trying to add a new material which is non-linear elastic isotropic and I am having a hard time understanding some properties. Could you explain about the properties in the red mark? Is it related to stiffness?
Thank you.
Best,
Parks
2 comments
Hey Parks,
Looks like there is a bug here so PMin shoule be PMax and PMax should be PCut so going by the command reference:
Pmin = Pmax
Pmax = Pcut
Pmax is the estimate of maximum pressure in calculation. Input a negative number since compresssion is negative by convention, for stability, an upper bound is needed on the bulk modulus. This is obtained as the tangent modulus at Pmax. Linear response is implemented for higher (negative) pressures
Pcut is an irreversible pressure cutoff. For reversible behavior, set Pcut to a large positive number.
B/A is the second-order nonlinearity parameter, which describes the material nonlinearity through which a finite-amplitude ultrasonic wave propagates. The magnitude of B/A, indicates the ability of the media to form higher harmonics to an originally sinusoidal wave of finite amplitude during its propagation away from the wave source.
So do I have to use modulus instead of velocities?
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