@Article{icces.2025.010832,
AUTHOR = {Pengfei Cui},
TITLE = {Three-Dimensional Failure Mechanics Theory and Digital Applications},
JOURNAL = {The International Conference on Computational \& Experimental Engineering and Sciences},
VOLUME = {34},
YEAR = {2025},
NUMBER = {1},
PAGES = {1--1},
URL = {http://www.techscience.com/icces/v34n1/65763},
ISSN = {1933-2815},
ABSTRACT = {With the continuous advancement of aerospace equipment, in addition to performance, function, and reliability requirements, durability is playing an increasingly crucial role. For instance, the objective of China's new - generation space transportation system is to achieve a reliability of 0.9999 or higher for manned flights, and a single rocket is expected to be capable of up to 100 flights. In high - temperature load - bearing structures, nickel - based alloys are extensively used because of their outstanding strength, fatigue resistance, and creep properties. In advanced aerospace engines, their mass fraction can reach as high as 50%. Thus, ensuring the safety and reliability of nickel - based high - temperature structures during long - term service is of vital importance for enhancing the reusability of aerospace equipment. To achieve this goal, the ability to accurately design the lifespan of nickel - based high - temperature structures is essential.<br/>
Nevertheless, the existing design method based on two - dimensional fracture theory cannot be precisely applied to the lifespan design of actual three - dimensional structures. Moreover, the vast amount of measurement and control operation data has not been fully exploited. In this study, we establish a series of creep, fatigue, and fracture design methods from the perspective of three - dimensional failure mechanics. By leveraging digital technology, these methods can further enhance the structural efficiency and reliability.},
DOI = {10.32604/icces.2025.010832}
}