Analysis of Crack Propagation in Carbon Nanotube Reinforced Magnesium Based Composites Under Tensile Load

Shuang Zhou; Xu Tian; Ying Xie

doi:10.62051/ijmsts.v2n3.04

Authors

Shuang Zhou
Xu Tian
Ying Xie

DOI:

https://doi.org/10.62051/ijmsts.v2n3.04

Keywords:

Magnesium based composite materials, Stretching, Crack propagation

Abstract

This article mainly conducts numerical simulations on the crack propagation of carbon nanotube reinforced magnesium based composites during uniaxial tensile failure. Selecting the cross-section of a representative carbon nanotube reinforced magnesium based composite material model as the research object, the model was loaded in multiple load steps using ANSYS finite element software, and the location and propagation path of cracks were discussed. It was found that cracks first appeared at the interface between carbon nanotubes and magnesium matrix; The direction of crack propagation is perpendicular to the direction of the load, which is called vertical crack propagation; As the load step gradually increases, the crack propagation speed gradually increases, especially when two parallel vertical cracks overlap, the crack propagation speed becomes more significant; Throughout the entire crack propagation process, the matrix has the most damaged units.

References

[1] Liqin Yan, Yong Huang. Preparation and Properties Study of Carbon nanotube Toughened Al Mg Alloy Composite Materials [J]. Functional Materials, 2024, 55 (01): 1212-1216.

[2] Jiahong Wu, Wenguang Wang, Dingrui Ni, etc Microstructure and mechanical properties of TiB2 nano coating modified carbon fiber reinforced Mg based composites [J]. Materials Introduction, 2023, 37 (14): 126-131.

[3] Zewen Yan. Preparation and micromechanical behavior of Ti particle reinforced Mg based composites [D]. Yanshan University, 2022.

[4] Yan Jiang. Finite element analysis of stress field in carbon nanotube reinforced magnesium based composites [D]. Shenyang: Shenyang University of Technology, 2016.

[5] J F Li, L Zhang, J K Xiao, et al. Sliding wear behavior of copper-based composites reinforced with graphene nanosheets and graphite [J]. Transactions of Nonferrous Metals Society of China, 2015, 25(10):3354-3362.

[6] Xiaotong Li, Qianduo Zhuang, Zhiliang Niu, et al. Prediction of mechanical properties of hybrid SiC particle reinforced aluminum matrix composites based on neural networks [J]. Precision Forming Engineering, 2024, 16 (04): 95-100.

[7] Dongya Han. Study on the Interface Microstructure and Mechanical Behavior of Continuous Fiber Reinforced Al Matrix Composites [D]. Jilin University, 2024.

[8] Junchi Ma. Simulation study on the mechanical behavior of ultrafine grain particle reinforced aluminum/magnesium based composites [D]. Civil Aviation Flight Institute of China, 2024.

[9] Young H L, Seong G K, David T. Catalytic growth of single-wall carbon nano-tubes [J]. Physical Review Letters, 1997, 78(12):2393-2396.

[10] Wong E W, Sheehan P E, Liebert C M. Nanobeam mechanics: elasticity, strength, and toughness of nano-rods and nano-tubes [J]. Science, 1997, 277(26):1971-1975.

[11] Kun Jiao. Finite element numerical simulation study on stress-strain field of carbon nanotube reinforced magnesium based composites [D]. Lanzhou: Lanzhou University of Technology, 2010.

[12] Haijun Li. Finite element simulation of carbon nanotubes based on atomic potential [D]. Nanjing: Nanjing University of Aeronautics and Astronautics, 2006.

[13] Sun C T, Vaidya R S. Prediction of composite properties from a representative volume element [J]. Composites Science and technology, 1996, 56(2):171-179.

[14] Shuang Zhou, Yan Jiang, Yu Cui. Tensile Numerical Simulation of Carbon Nanotube Reinforced Magnesium Matrix Composites [J]. International Core Journal of Engineering, 2022, 8(3):407-419.

[15] Weixue Li, Yingge Xu, Yuan Hao, et al. Study on the mechanical properties of carbon nanotube reinforced AZ91D magnesium based composites [J]. Gansu Journal of Science, 2010, 22 (2): 34-37.