@article{fernandes neto_haach_2023,  title={Flexural and direct tensile strength ratio for concrete unusual cross-sections},  volume={16},  ISSN={1983-4195},  url={https://doi.org/10.1590/S1983-41952023000100004},  DOI={10.1590/S1983-41952023000100004},  number={1},  journal={Revista IBRACON de Estruturas e Materiais},  publisher={IBRACON - Instituto Brasileiro do Concreto},  author={Fernandes Neto, José Anchiêta Damasceno and Haach, Vladimir Guilherme},  year={2023},  pages={16104} }