SINTERING_STRAIN#
Description#
The mechanisms of sintering may be represented by a sintering strain \(\bf \varepsilon_s\).
Syntax#
\(~\,~\,\) type
[ anisotropic
\(~\,~\,~\,\) a1 COEFFICIENT
\(~\,~\,~\,\) a2 COEFFICIENT
\(~\,~\,~\,\) a3 COEFFICIENT
]
\(~\,~\,\) model_coefficient COEFFICIENT
\(~\,~\,~\,\) …
The replacements available for type are the following
CODE |
DESCRIPTION |
|---|---|
|
\(\dot f = -A (f-f_\infty)^n\)
coefficients: \(A\), \(n\), \(f_\infty\)
names :
A, n, f_inf |
The option anisotropic allows to enter a non-isotropic strain with
the use of the three coefficients a1, a2 and a3. The strain
is then defined as:
(480)#\[\dot\epsilon_{11} = a_1 \dot\epsilon_s\qquad
\dot\epsilon_{22} = a_2 \dot\epsilon_s\qquad
\dot\epsilon_{33} = a_3 \dot\epsilon_s\]
The following relation must be verified:
(481)#\[a_1 + a_2 + a_3 =3\]