How to model an inboard braking system in simulink(need a clear explanation)?

Brake system model

Answer 1

[Steve Miller]

Example Vehicle with Manual Transmission shows the use of the Disk Brake block. .

https://www.mathworks.com/help/sdl/ug/vehicle-with-manual-transmission.html

https://www.mathworks.com/help/sdl/ref/discbrake.html

If you are considering effects on the suspension, then Simscape Multibody might be your best bet. Some examples showing vehicle simulation, including brake dynamics are shown on this page:

https://www.mathworks.com/matlabcentral/fileexchange/79484-simscape-vehicle-templates

--Steve