Analysis of shear cutting of dual phase steel by application of an advanced damage model
Analysis of shear cutting of dual phase steel by application of an advanced damage model
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应用先进损伤模型分析双相钢剪切
DOI：
10.1016/j.prostr.2016.06.215
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发表时间：
2016
期刊：
影响因子：
--
通讯作者：
Tekkaya
中科院分区：
文献类型：
--
作者：
Gutknecht;Steinbach;Hammer;Clausmeyer;Tekkaya
剪切切割仍然是工业中最优选的分离板材的工艺。采用增强的全耦合Lemaitre模型来描述材料的性能。局部损伤模型考虑了剪切和压缩为主的应力状态对损伤扩展的影响。采用一种省时的参数识别方法，从不同的拉伸和扭转试验中获得合适的材料参数。对双相钢进行了剪切试验，验证了仿真模型的正确性。利用该工艺模型对切削力进行了准确的预测。此外，断裂处的三轴性必须结合预测的几何形状来考虑，以确定切削表面的特征，即抛光和断裂带。
Shear cutting is still the most preferred process in industry for separation of sheets. An enhanced fully-coupled Lemaitre model is applied for the description of the material behaviour. The local damage model considers the influence of shear and compression-dominated stress states on the propagation of damage. A time-efficient approach for parameter identification is used to obtain proper material parameters from different tensile and torsion tests. Shear cutting experiments for dual phase steel are performed to validate the simulation model. An accurate prediction of the cutting force is obtained with the process model. Furthermore, it is shown that the triaxiality at fracture has to be considered in combination with the predicted geometry to determine the characteristics of the cutting surface, i.e. the burnish and the fracture zone.
用于板材成形的损伤耦合正交各向异性有限塑性模型：CDM 方法
影响因子：
3.3
作者：
Soyarslan;Tekkaya
通讯作者：
Tekkaya
影响因子：
5.4
作者：
Dalloz, A.;Besson, J.;Pineau, A.
通讯作者：
Pineau, A.
影响因子：
2.2
作者：
Brosius, A.;Yin, Q.;Tekkaya, A. E.
通讯作者：
Tekkaya, A. E.