Numerical analysis of the effects of cutting parameters on the sub-surface damage in machining of CFRPs

Xiaonan Wang, Fuji Wang, Youliang Su, Rao Fu, Bin Niu, Shiyong Sun, Junwei Yin

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Carbon Fiber Reinforced Plastics (CFRP) are widely used in the aerospace application. However, the machining induced sub-surface damage is critical to them. Because it would significantly reduce the reliability and the service life of the components. Particularly when the cutting angle is obtuse. The main purpose of this paper is to research the effect of the cutting parameters on the sub-surface damage in machining of CFRPs with obtuse cutting angle. And the numerical simulation is an effective method to study and observe the sub-surface damage under different cutting parameters. Despite some researches have been carried out on the effects of the cutting parameters on sub-surface damage through two-dimensional cutting models of CFRPs. The out-of-plane force also has influences on the change of the depth of the subsurface damage. And the generated cutting forces are unequal under different cutting widths during the cutting of the CFRPs. Therefore, the effects of the cutting width on the sub-surface damage still need to be studied. In this paper, a three-dimensional numerical model for the orthogonal cutting of CFRPs was developed based on the AbaqusTM. And the stress-strain relationship in the out-of-plane direction when machining CFRPs was considered in this model. Particularly, the mode I fracture in the transverse direction of the CFRPs was indicated by the damage factor of the tensile failure in the transverse direction to describe the sub-surface damage. The 135ºcutting of the CFRPs under different cutting widths were simulated by this model, and the change of the depth of the sub-surface damage were analyzed. In addition, the simulation results were validated by experiments. The model provides an effective method for the prediction of the sub-surface damage, which is helpful for the optimization of the design of the tool.

Original languageEnglish
Title of host publication32nd Technical Conference of the American Society for Composites 2017: Proceedings
EditorsJohnathan Goodsell, R. Byron Pipes, Wenbin Yu
PublisherDEStech Publications Inc.
Pages663-673
Number of pages11
ISBN (Electronic)9781510853065
Publication statusPublished - 01 Feb 2018
Externally publishedYes
Event32nd Technical Conference of the American Society for Composites 2017 - West Lafayette, United States
Duration: 23 Oct 201725 Oct 2017

Conference

Conference32nd Technical Conference of the American Society for Composites 2017
CountryUnited States
CityWest Lafayette
Period23/10/201725/10/2017

ASJC Scopus subject areas

  • Ceramics and Composites

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  • Cite this

    Wang, X., Wang, F., Su, Y., Fu, R., Niu, B., Sun, S., & Yin, J. (2018). Numerical analysis of the effects of cutting parameters on the sub-surface damage in machining of CFRPs. In J. Goodsell, R. B. Pipes, & W. Yu (Eds.), 32nd Technical Conference of the American Society for Composites 2017: Proceedings (pp. 663-673). DEStech Publications Inc..