A multi-mechanism model for cutting simulations combining visco-plastic asymmetry and phase transformation
A multi-mechanism model for cutting simulations combining visco-plastic asymmetry and phase transformation
复制标题
结合粘塑性不对称性和相变的切削模拟多机制模型
DOI:
10.1016/j.ijsolstr.2013.05.008
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发表时间:
2013
影响因子:
3.6
通讯作者:
Mahnken
中科院分区:
文献类型:
--
作者:
Mahnken
We develop a multi-mechanism model for strainrate- and temperature-dependent asymmetric plastic material behavior accompanied by phase transformations, which are important phenomena in steel production processes. To this end the well-known Johnson–Cook model is extended by the concept of weighting functions, and it is combined with a model of transformation-induced plasticity (TRIP) based on Leblond’s approach. The bulk model is formulated within a thermodynamic framework at large strains, and it will be specialized and applied to cutting processes in steel production. In this prototype situation we have: Transformation of the martensitic initial state into austenite, then retransformation of martensite. For incorporation of visco-plastic asymmetry two variations of the classical Johnson–Cook model are presented: In “Model A” we introduce a rate dependent flow factor with a rate independent yield function. In “Model B” we introduce a rate independent flow factor with a rate dependent yield function. In the examples parameters are identified for the material DIN 100Cr6, and we illustrate the characteristic effects of our multimechanism model, such as strain softening due to temperature, rate dependence and temperature dependence as well as the SD-effect. A finite-element simulation illustrates the different mechanisms for a cutting process.
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DOI:
--
发表时间:
2003
期刊:
影响因子:
--
作者:
R. Sievert;Hans;A. Hamann;P. Löwe;K. Singh;Georgia Künecke;R. Clos;U. Schreppel;P. Veit;E. Uhlmann;R. Zettier
通讯作者:
R. Zettier
影响因子:
1.6
作者:
R. Mahnken;M. Johansson;K. Runesson
通讯作者:
K. Runesson
DOI:
--
发表时间:
1990
期刊:
影响因子:
--
作者:
A. A. Zolochevskii
通讯作者:
A. A. Zolochevskii
影响因子:
9.8
作者:
T. Iwamoto
通讯作者:
T. Iwamoto
影响因子:
9.4
作者:
Levitas, VI;Idesman, AV;Olson, GB
通讯作者:
Olson, GB