DETONATION
Material properties
Beta command
This command is in the beta stage and the format may change over time.
"Optional title"
coid
entype, enid, $x_d$, $y_d$, $z_d$, $t_d$, $R$, $\phi$
gid
Parameter definition
Description
Detonation point definition, needed by materials such as MAT_EXPLOSIVE_JWL. The detonation radius $R$ limits the distance the detonation front is allowed to propagate through programmed burn. $\phi$ is a delay parameter (unit time). It slows the detonation front when navigating corners (such as wave shapers). The $\phi$ value quantifies the time lost in a full 90-degree turn.
A detonation function (fcn) may be used in place of the fixed time ($t_d$). The event is triggered when returning a positive value, as illustrated in the example below.
If specified, gid causes all elements enclosed by the referenced geometry to detonate simulataneously, replacing initiation at the detonation point.
Example
Detonation functions
Example where the detonation point and time are not defined a priori, but with functions (fcn). In this specific case, detonation is assumed to take place when the material pressure exceeds $1GPa$
