Abstract
Microfracture process in ceramics was analyzed using Monte-Carlo simulation. It was supposed in the simulation that the microfracture process consists of the maincrack formation resulted from the growth and coalescence of pre-existing microcracks, and the propagation of maincrack to final failure. To determine the crack growth parameters for simulation, microfracture process in alumina ceramics was characterized by acoustic emission technique, and the critical stress for maincrack formation and final strength were determined and compared with the results of simulation. The Monte-Carlo simulation assuming the 3 microcracks array with random size was adapted to the fracture analysis during the proof test with various proof stresses and holding times as well as residual strength measurements. The time-to-maincrack formation, yields and residual strength were calculated and it was found that they showed good agreement with the several experimental results. Consequently, the proof test with the wide range of proof stresses and holding times were examined and their influence on the yields, residual strength and lifetime was discussed.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: The Proceedings of Mechanical Engineering Congress, Japan
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
