Determination of the stress-intensity factor of the first type for two collinear inhomogeneous cracks by the boundary element method

The article considers the stress-strain state of two linear collinear inhomogeneous cracks. Within the framework of this work, a mathematical model is being developed to describe the process of joint opening of the considered cracks. A calculation algorithm is proposed that makes it possible to determine the numerical characteristic of the stress-strain state by the method of boundary elements - the stress intensity factor. Results are presented that reflect the performance of the obtained mathematical model and allow further research in the field of fracture mechanics.