I'll share a story my mother told me that happened to her when she was a teenager, not sure if it will be useful on your situation but who knows.
Anyway my mother told me that she and her brothers was injured by my grandpa countless times, he used to work on three different jobs and he was stressed almost all the time, at the point that if his children misbehave or get a bad grade or other reasons he grabbed his belt and used to hit them, until one day my mother was really tired of his stuff because he was screaming at her so she throwed him on the couch and told a lot of things that were in her mind about him, in conclusion he started crying and stayed there for a couple hours, until that day he stopped hurting them.
So you could try confronting your dad and convince him that he has to stop his stuff, that never happened to me because my parents are cool with me so I'm not really sure.
