A new method for calculating volumetric structural elements in the general case of their stress-strain stateOleg Novoselov, Linar Sabitov, Kamil Sibgatullin, Emer Sibgatullin and Anton ChepurnenkoE3S Web of Conf., 402 (2023) 07012DOI: https://doi.org/10.1051/e3sconf/202340207012