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Canada-0-Carpet Rug Cleaners 公司名录
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公司新闻:
- A review on Johnson Cook material model - ScienceDirect
In orthogonal cutting - plain strain machining, the chip formation model is being investigated The Johnson-Cook model is used to calculate cutting energy, plasticity and friction both cause temperature rise in a material
- Importance of the Johnson-Cook Material Model Parameters in . . .
Literature analysis clearly shows that the Johnson-Cook material model is most commonly used in simulations of the cutting process [4] For instance, Wu et al [5] used the finite element method to simulate the chip formation and breaking process when turning AISI 1045 steel FEM can also be used to solve more complex issues
- Inverse Determination of Johnson–Cook Parameters of . . .
To predict this behavior, a simplified inverse approach is developed to determine the buildup direction-dependent parameters of a modified Johnson–Cook model for cutting simulation To qualify these cutting models, mainly the cutting force and additionally the chip formation examined during orthogonal cuts are used
- Comparison of Johnson-Cook and modified Johnson-Cook material . . .
In this paper finite element simulation of Johnson-Cook model (JC) is compared with the Modified Johnson-Cook models from Chen et al (MJC1) [3] and Hou et al (MJC2) [4] that take into account temperature dependent hardening factor and its coupled effects between strain and temperature
- JOHNSON-COOK PARAMETER IDENTIFICATION FROM MACHINING . . .
Key words: Machining simulation, Johnson-Cook, Inverse determination Abstract The Johnson-Cook model is a material model which has been widely used for simulating the chip formation processes It is a simple 5 parameter material model which predicts the flow stress at large strains, strain-rates and at high temperatures These
- Effect of Johnson–Cook Material Model Constants on Predicted . . .
Finite element (FE) simulations help understand the chip formation mechanism with minimum number of experiments The basic purpose of the current work is to develop an FE model by taking into account three different sets of JC model constants and compare the predicted output variables with experimental machining tests available in the literature
- A reliable method for predicting serrated chip formation in . . .
It was found that the integrative use of the Johnson–Cook thermal-viscoplastic constitu-tive equation, JohnsonCook damage criterion for chip precisely predict the serrated chip formation in HSC without artificial assumptions This advancement has removed the major barrier in the current machining investigations by numerical simulation
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