This seems to be a problem that you need to solve.
Get in a third party to help, e.g. your local ulema so that they could help get to the areas that’s making you wife behave in this way and then working out a way to solve the issues. You may try to ask her to talk about the issues but if she is at a stage of beating you and your mother she needs help to solve the problems.
So you need to go to your local Ulema and seek this assistance. May Allah keep us on right path.
and Allah Ta’ala Knows Best
Shaykh Irshaad Amod / Moulana Imraan Vawda
FATWA DEPT.