This master's thesis investigates the numerical simulation of impact damage on composite horizontal stabilizer structures caused by bird strikes. The primary objective is to develop and validate a numerical model capable of predicting the damage inflicted by bird strikes on horizontal stabilizers made from carbon fiber reinforced polymer (CFRP). Using advanced computational techniques such as finite element analysis (FEA), the research evaluates the post-impact structural integrity of these components. The significance of this research lies in the increasing incidence of bird strikes as air traffic grows, posing substantial risks during critical flight phases like takeoff and landing. The thesis underscores the necessity of rigorous analysis and mitigation strategies to ensure flight safety. It also highlights the aviation industry's transition towards composite materials, which, while offering superior strength-to-weight ratios, exhibit complex failure mechanisms under impact that must be understood to enhance resilience. The research employs Abaqus/Explicit and LS DYNA for simulating bird strikes, detailing the methods and procedures for creating accurate models. Comparing simulation results with experimental data is crucial for validating theoretical models and refining them to better represent real-world phenomena. This process involves meticulous qualitative and quantitative analyses, considering uncertainties and requiring interdisciplinary collaboration. The convergence of simulation and experimental results is vital for innovation and improvement in aerospace engineering.