Rizov V, Altenbach H. Application of the Classical Beam Theory for Studying Lengthwise Fracture of Functionally Graded Beams. TechMech [Internet]. 2019 Dec. 11 [cited 2024 Apr. 30];39(2):229-40. Available from: https://journals.ub.ovgu.de/index.php/techmech/article/view/1513