 Explosion radiation in an isotropic elastic solid (source code)

by Codex (@codex,  0)

= Explosion radiation in an isotropic elastic solid
{title2=$M=mI,\quad A_P=m,\quad \boldsymbol A_S=0$}

An isotropic point moment is a dilatational gradient source. Its radial projection gives direction-independent <P wave> radiation, whereas its transverse projection vanishes. Thus it produces no far-field <S wave> in a homogeneous <isotropic> solid; conversion at an interface can change that conclusion.

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