Finite element simulation of projectile impact descaling based on birth-death element method

Shang Wang; Song Wang; Xiaozhan Li

doi:10.1117/12.2645843

23 November 2022 Finite element simulation of projectile impact descaling based on birth-death element method

Shang Wang, Song Wang, Xiaozhan Li

Proceedings Volume 12302, Seventh International Conference on Electromechanical Control Technology and Transportation (ICECTT 2022); 1230239 (2022) https://doi.org/10.1117/12.2645843
Event: Seventh International Conference on Electromechanical Control Technology and Transportation (ICECTT 2022), 2022, Guangzhou, China

Abstract

In order to ensure the surface quality of cold rolling products, the scale layer on the surface of hot rolling strip should be cleaned. The traditional descaling mode is pickling, which has the problem of waste acid discharge and environment pollution. Shot blasting impact descaling is an advanced and green descaling technology. However, the mechanism and law of shot blasting and descaling are not clear yet. In order to further study the damage law of scale layer under projectile impact, a finite element model was established based on the birth-death element method (BDEM) and simulation calculation was carried out. The results show that the scale layer elements are continually deleted after reaching the failure threshold with the help of BDEM decision rules. Descaling process is accurately simulated. With the increase of projectile impact velocity, the descaling area increases, but the growth rate slows down when the velocity exceeds 60 m/s. The reasonable impact velocity should be selected according to the steel type and the property of scale layer.

Citation Download Citation

Shang Wang, Song Wang, and Xiaozhan Li "Finite element simulation of projectile impact descaling based on birth-death element method", Proc. SPIE 12302, Seventh International Conference on Electromechanical Control Technology and Transportation (ICECTT 2022), 1230239 (23 November 2022); https://doi.org/10.1117/12.2645843

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