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应用ABAQUS模拟了1200℃条件下的316L不锈钢/Q235碳钢复合板的首道次轧制过程,以最大垂直压应力与硬金属的平面变形抗力的比值作为复合板结合性的判断依据,得到了不同压下率的界面结合率。与实验数据对比发现,在相同的压下率情况下模拟的界面结合率略高。为了消除模拟结果与实验结果之间的差异,使有限元模型更接近于实验,用模拟数据和实验数据对判别式的比值进行修正,并得到比值为1.03975。修正后所得到的界面结合率更接近于实验结果;实验结果也验证了有限元模型的正确性和模拟过程中判断依据的可行性;此外,得到了界面结合率随首道次压下率的增加基本呈指数型增加的规律。
The first pass rolling process of 316L stainless steel / Q235 carbon steel composite plate under 1200 ℃ was simulated by ABAQUS. The ratio of the maximum vertical compressive stress to the plane deformation resistance of hard metal was taken as the judgment basis for the bonding of the composite plate. Different reduction rates of interface binding rate. Compared with the experimental data, it is found that the simulated interface binding rate is slightly higher under the same reduction rate. In order to eliminate the difference between the simulation results and the experimental results, the finite element model is brought closer to the experiment. The ratio of the discriminant is corrected by the simulation data and the experimental data, and the ratio is 1.03975. The corrected interfacial binding rate is closer to the experimental results. The experimental results also verify the correctness of the finite element model and the feasibility of judging in the simulation process. In addition, the interfacial binding rate with the first pass reduction rate Increase the basic law of the exponential increase.