Finite element analysis when orthogonal cutting of hybrid composite CFRP/Ti

2015 Global Conference on Polymer and Composite Materials

材料科学;化学

Xu, Jinyang^1 ; Mansori, Mohamed El^1

MSMP Laboratoire, Arts et Métiers ParisTech, Rue Saint Dominique BP508, Châlons-en-Champagne

51006, France^1

关键词: Comparative studies;    Cutting operations;    Hybrid composites;    Load-bearing components;    Machined surface quality;    Numerical results;    Orthogonal cutting;    Structural configurations;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/87/1/012059/pdf
DOI  :  10.1088/1757-899X/87/1/012059

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Hybrid composite, especially CFRP/Ti stack, is usually considered as an innovative structural configuration for manufacturing the key load-bearing components in modern aerospace industry. This paper originally proposed an FE model to simulate the total chip formation process dominated the hybrid cutting operation. The hybrid composite model was established based on three physical constituents, i.e., Ti constituent, interface and CFRP constituent. Different constitutive models and damage criteria were introduced to replicate the interrelated cutting behaviour of the stack material. The CFRP/Ti interface was modelled as a third phase through the concept of cohesive zone (CZ). Particular attention was made on the comparative studies of the influence of different cutting-sequence strategies on the machining responses induced in hybrid stack cutting. The numerical results emphasized the pivotal role of cutting-sequence strategy on the various machining induced responses including cutting-force generation, machined surface quality and induced interface damage.