Визначення максимальних напружень у отвору в шаруватих композитних пластинах зі схемою укладання [φ/-φ]2s, навантажених болтом

When designing bolted joints (BJ), it is necessary, in particular, to carry out their verification calculations for strength. At the same time, it is desirable to use express analysis: calculations based on simple formulas with sufficient accuracy. For BJ plates made of layered polymer composite materials (CFRP), the problem has not yet been solved.The purpose of the research: to obtain information about the location of zones with maximum stresses and their change schedules in the calculations for finite element method (FEM).Numerical calculations were carried out using the FEM (contact problem) for the BJ plate made of CFRP. 3D orthotropy of each monolayer was assumed.New tables were obtained, graphs were constructed, which provide a visual representation of the characteristics of changes in maximum stresses.