...Igor Orynyak; Vladyslav Marchenko; Roman Mazuryk; Andrii Oryniak There are dozens of formulas in literature and standards for residual strength calculation of the pressurized ductile pipes with axial rectangular defect. Their accuracy is usually characterized by the so-called “model error” notion...

... of the sensing device are described in detail. Then, experiments are carried out to prove the accuracy and the long-term stability of the sensing device. To verify the accuracy of the device, numerical simulation of the deformation of a pipe model is carried out using finite element method. Results from...