Griffith-II Type Crack Generation and Chip Formation Simulation in Vibration Turning Based on Prandtl-Reuss Flow Principle

Abstract:

Article Preview

In order to profound the function of stress wave in vibration turning and present the effectiveness of instant change of stress and strain in the workpiece under the shock load,put forward a simulation model of materials obeying Prandtl-Reuss flow principle with non-linear constitutive relation for vibration turning with low frequency.Related techniques have been stressed on criterion of chip separation from the workpiece, friction between the chip and the rake of the tool. Results of simulation for both conventional and vibratory turning show that the dynamic stress intension factor is 1.45 times or more in vibratory turning than that in conventional turning. It is the stress wave that leads to the accumulation and concentration of stress, the dislocation pile-up, facilitating the chip generation and development.

Info:

Periodical:

Advanced Materials Research (Volumes 201-203)

Edited by:

Daoguo Yang, Tianlong Gu, Huaiying Zhou, Jianmin Zeng and Zhengyi Jiang

Pages:

1699-1703

DOI:

10.4028/www.scientific.net/AMR.201-203.1699

Citation:

L. Z. Gu et al., "Griffith-II Type Crack Generation and Chip Formation Simulation in Vibration Turning Based on Prandtl-Reuss Flow Principle", Advanced Materials Research, Vols. 201-203, pp. 1699-1703, 2011

Online since:

February 2011

Export:

Price:

$35.00

In order to see related information, you need to Login.

In order to see related information, you need to Login.