Impact force is expressed as the change of stresses that occur during the collision of two objects. Nowadays both reinforced concrete and steel structures can be exposed to the impact forces. In particular, structures with strategic importance must be reinforced against impact forces. Since the impact loading is an instantaneous and dynamic load, the deformations due to impact occur in a very short time. The study consists of three stages. Initially, experimental research was carried out in order to have high strength of composite element consisting of different epoxy and aramid fiber-reinforced polymers (AFRP). In the second stage, the experimental behavior of the abovementioned samples was examined. Finally, a finite element model was developed in order to have a prediction for the future studies. At the end of the study, when the steel element under impact was strengthened with different ratios of AFRP, displacement value has decreased. With the help of experimental data the finite element model was confirmed with marginal error of 2–3%.

冲击力表示为两个物体碰撞期间发生的应力变化。如今，钢筋混凝土和钢结构都可以承受冲击力。特别是，必须加强具有战略重要性的结构以抵抗冲击力。由于冲击载荷是瞬时和动态载荷，因此由于冲击而产生的变形会在很短的时间内发生。该研究包括三个阶段。最初，进行实验研究以具有由不同的环氧树脂和芳族聚酰胺纤维增强聚合物（AFRP）组成的复合元件的高强度。在第二阶段，检查上述样品的实验行为。最后，开发了有限元模型以对未来的研究做出预测。在研究结束时，当采用不同比例的AFRP增强受冲击钢构件时，位移值减小。借助实验数据，确定了有限元模型，其边际误差为2-3％。