How Chaos causes the broken parts to be destroyed?

I want the damaged parts to disappear so that the fragments will not persist and affect performance. What should I do?

That is to say, I have a main model is a room. When I hit the room, pieces will peel off, but the falling pieces will not disappear and will always exist. How can I solve this problem?

你有条件可以将这些碎屑附加到某个Actor下吗?这样你直接DestoryActor即可
如果不行的话,那你就需要在他破碎之后用数组遍历存储他们,这样才能确保他们完全销毁