Reno Genest
Ansys Employee

Explicit analyses are not supported by ACP Post. With ACP Post, you look at first ply failure in the laminate using failure criteria (max stress, Puck, etc.), and in explicit simulation we usually simulate until the entire laminate fails (all plies fail and you have a crack or hole in the composite structure). Here is more information in Ansys help:
You can find many papers on composite failure with LS-DYNA at Search for "composite failure" or similar keywords.