Abstract
ABSTRACT In this paper, relevant mechanical tests were conducted on sintered ore specimens, and found that the ultimate strength of sintered ore under different strain rates had significant differences. The JH-2 constitutive model of sintered ore was obtained based on relevant tests and theoretical derivation, and used finite element method to reveal the crushing mechanism of sintered ore, and found that the maximum stress was mainly concentrated near the tooth root and tooth tip. By analyzing the variation rate of the fitted nonlinear surfaces about the stress of the tooth root and tooth tip versus the width of the tooth root and tooth tip and considering the engineering reality, it was found that the best choice of the roll tooth parameters was found when the tooth tip and root widths were both 160 mm.
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