Numerical Investigation of the Effect of Post Notching Size and Location on the Behavior of Reinforced Concrete Beam before and after Strengthening. - Al-Salman, Harith; Ali Alfatlawy, Hassanin Abd; Al-Mamory, Zainb Kareem; Khalaf, Hayder Abdulwahid; Abutaha, Fuad (Tikrit Journal of Engineering Sciences, 2026)