Abstract
Carbon fiber-reinforced polymer (CFRP) is prone to machining defects, including burrs and tearing, during milling. These defects are closely associated with interface delamination while milling force plays a crucial role in their occurrence. In this paper, a nonlinear explicit finite element (FE) model is developed to predict the milling force and analyze the delamination damage occurring during the milling of unidirectional CFRP (UD-CFRP). The proposed FE model is validated through numerical comparison with experimental data for milling force. Moreover, a detailed study is conducted to examine the influences of spindle speed, feed rate and depth-of-cut on the side-milling performance and damage response of UD-CFRP. This study provides valuable insights into the effects of machining parameters on milling force and delamination damage in CFRP, thereby supporting the optimization of machining technology for this composite material system.
| Original language | English |
|---|---|
| Pages (from-to) | (In-Press) |
| Number of pages | 14 |
| Journal | Mechanics of Advanced Materials and Structures |
| Volume | (In-Press) |
| Early online date | 31 Jul 2024 |
| DOIs | |
| Publication status | E-pub ahead of print - 31 Jul 2024 |
Funder
This work was supported by the Natural Science Foundation of Jiangsu Province [BK20231319] and State Key Laboratory of Mechanics and Control for Aerospace Structures (Nanjing University of Aeronautics and astronautics) [MCAS-E-0124G03].Keywords
- UD-CFRP
- milling
- machining parameters
- delamination
- finite element modeling