Hoang Lan-Ton That, Thanh Chau-Dinh, Nguyen Van Hieu. Improvement on six-node triangular finite element (IT6) using twice-interpolation strategy for linear elastic fracture mechanics. JTE [Internet]. 2019 Apr. 29 [cited 2026 Apr. 7];14(2):32-40. Available from: https://www.jte.edu.vn/index.php/jte/article/view/214