Thermodynamically consistent formulation coupling crystal plasticity theory and Johnson-Cook damage model to simulate micromachining of copper
العنوان: | Thermodynamically consistent formulation coupling crystal plasticity theory and Johnson-Cook damage model to simulate micromachining of copper |
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المؤلفون: | Albert Tidu, Mohammed Nouari, H.B. Boubaker, A. Moufki, Pascal Laheurte |
المصدر: | Procedia CIRP. 102:506-511 |
بيانات النشر: | Elsevier BV, 2021. |
سنة النشر: | 2021 |
مصطلحات موضوعية: | Condensed Matter::Materials Science, Surface micromachining, Work (thermodynamics), Materials science, Misorientation, Chip formation, Constitutive equation, General Earth and Planetary Sciences, Mechanics, Anisotropy, Microstructure, Grain size, General Environmental Science |
الوصف: | In this work, a microstructural-related model was developed to simulate micromachining of FCC polycrystalline copper. Indeed, a crystal plasticity framework was adopted to describe the anisotropy of the mechanical behavior. Some material microstructure characteristics (such as grain size, grain misorientation and crystallographic orientation) are explicitly considered through the constitutive model. For describing the material removal during chip formation, a modified thermodynamically consistent formulation of the Johnson-Cook damage model was used. The model was implemented in the ABAQUS/Explicit finite element solver with a user-defined subroutine, and the experimental validation was performed using data on the cutting forces available in the literature. Finally, the model was used to investigate the effect of the microstructure on the micro-machining cutting forces and chip formation process. According to the results, the proposed model allows capturing the cutting forces trends due to the crystallographic anisotropy. |
تدمد: | 2212-8271 |
URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::9be1d075879c814e05d1bd6f7ff1755d https://doi.org/10.1016/j.procir.2021.09.086 |
حقوق: | OPEN |
رقم الأكسشن: | edsair.doi...........9be1d075879c814e05d1bd6f7ff1755d |
قاعدة البيانات: | OpenAIRE |
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