RT Conference Proceedings
T1 Fatigue strain fields comparison between Synchrotron X-Ray Diffraction and 3D Numerical computation in a bainitic steel.
A1 Aguilera-García, José Antonio
A1 Moreno Cerezo, Pablo
A1 García-González, Antonio Luis
A1 López-Crespo, Pablo
K1 Acero - Fatiga
AB Engineers prioritize resource preservation when designing lightweight materials, but fatigue can pose challenges. Although various experimental methods exist for studying fatigue cracks, some are only effective for transparent materials. For example, transmission photo-elasticity is limited in application, and post-failure metallography and micro-indentation cannot be adopted during mechanical testing. However, Synchrotron X-ray diffraction experiments can obtain valuable data from the bulk of metallic materials. A study was done on a 12mm thick Compact Tension bainitic steel sample (used in civil engineering and Wind offshore industry). A fatigue test was conducted by applying 51,000 loading cycles at a frequency of 10 Hz, ΔP=14.9KN (0.5kN to 15.4kN), followed by a 24.5 kN load. We analyzed the strain fields along the crack growth direction (εxx) and loading direction (εyy). Both experimental and Finite Element Methods data showed promising results with similar strain field shapes and values, showing as well consistency with mode I loading.
YR 2023
FD 2023
LK https://hdl.handle.net/10630/28305
UL https://hdl.handle.net/10630/28305
LA eng
NO Authors are grateful for the beam time granted by the ESRF (MA1483). Authors would also like to acknowledge the financial support of Programa Operativo FEDER (Junta de Andalucia, Spain) through grant reference UMA18-FEDERJA-250. This work was also supported by the Henry Royce Institute for Advanced Materials, funded through EPSRC grants EP/R00661X/1, EP/S019367/1, EP/P025021/1, and EP/P025498/1 and the European Social Found, through the Youth Employment Initiative, grant reference UMAJI84. The authors are especially thankful to Manuel Carrera for his help in the early stages of this study. We would also acknowledge funding for open access charge: Universidad de Malaga / CBUA.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech.
DS RIUMA. Repositorio Institucional de la Universidad de Málaga
RD 19 ene 2026