Numerical Analysis of Effect of Defects on Fracture Behavior in Metallurgical Coke Using Rigid Bodies-Spring Model

作者：Ueoka Kenta^*; Ogata Tomoki; Hayashizaki Hideyuki; Matsushita Yohsuke; Aoki Hideyuki; Miura Takatoshi; Fukuda Koichi; Matsudaira Kanji

来源：Journal of the Iron and Steel Institute of Japan, 2009, 95(8): 607-612.

DOI：10.2355/tetsutohagane.95.607

• RBSM (Rigid Bodies-Spring Model)
• fracture
• pore
• pore wall thickness
• coke

The fracture analyses using RBSM (Rigid Bodies-Spring Model) were carried out for coke models with simple pore in order to examine effect of defects on fracture behavior in metallurgical coke. The discussion about the analytical results summarizes as follows:
1) Plastic load of coke is affected by pore shape and directions of force around pores. As a result, it is clear that plastic load of coke is concerned with coefficient of stress concentration.
2) Stress varies with a decrease in pore wall thickness and these interferences affect fracture load of coke. Thus, it is shown that pore and thickness are important factors in coke breakage.
3) The result of discussion of number density of pore and porosity shows that porosity is the most important factor in coke fracture. In addition, it is shown that diameter of pore and thickness are not as important as porosity in coke fracture.

• 出版日期2009-8