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Materials 2016, 9(1), 22; doi:10.3390/ma9010022

Cutting Modeling of Hybrid CFRP/Ti Composite with Induced Damage Analysis

MSMP—EA 7350 Laboratoire, Arts et Métiers ParisTech, Rue Saint Dominique B.P. 508, 51006 Châlons-en-Champagne, France
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Academic Editor: Sanjay Mathur
Received: 14 November 2015 / Revised: 16 December 2015 / Accepted: 28 December 2015 / Published: 4 January 2016
(This article belongs to the Section Manufacturing Processes and Systems)
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Abstract

In hybrid carbon fiber reinforced polymer (CFRP)/Ti machining, the bi-material interface is the weakest region vulnerable to severe damage formation when the tool cutting from one phase to another phase and vice versa. The interface delamination as well as the composite-phase damage is the most serious failure dominating the bi-material machining. In this paper, an original finite element (FE) model was developed to inspect the key mechanisms governing the induced damage formation when cutting this multi-phase material. The hybrid composite model was constructed by establishing three disparate physical constituents, i.e., the Ti phase, the interface, and the CFRP phase. Different constitutive laws and damage criteria were implemented to build up the entire cutting behavior of the bi-material system. The developed orthogonal cutting (OC) model aims to characterize the dynamic mechanisms of interface delamination formation and the affected interface zone (AIZ). Special focus was made on the quantitative analyses of the parametric effects on the interface delamination and composite-phase damage. The numerical results highlighted the pivotal role of AIZ in affecting the formation of interface delamination, and the significant impacts of feed rate and cutting speed on delamination extent and fiber/matrix failure. View Full-Text
Keywords: hybrid composite; FE modeling; orthogonal cutting; induced damage; interface delamination; fiber/matrix failure hybrid composite; FE modeling; orthogonal cutting; induced damage; interface delamination; fiber/matrix failure
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Xu, J.; El Mansori, M. Cutting Modeling of Hybrid CFRP/Ti Composite with Induced Damage Analysis. Materials 2016, 9, 22.

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