An analytical method for assessing the initiation and interaction of cracks in fused silica subjected to contact sliding

Li，Chang Sheng1,2; Zhao，Na1; Zhang，Liang Chi3,4,5; Ding，Jian Jun1; Sun，Lin1; Duan，Duan Zhi1; Kang，Cheng Wei1; Jiang，Zhuang De1

2023

10.1007/s40436-023-00444-2

Advances in Manufacturing   影响因子和分区

2095-3127

2195-3597

Understanding the fracture behavior of fused silica in contact sliding is important to the fabrication of damage-free optics. This study develops an analytical method to characterize the stress field in fused silica under contact sliding by extending the embedded center of dilation (ECD) model and considering the depth of yield region. The effects of densification on the stress fields were considered by scratch volume analysis and finite element analysis. Key mechanisms, such as crack initiation and morphology evolution were comprehensively investigated by analyzing the predicted stress fields and principal stress trajectories. The predictions were validated by Berkovich scratching experiment. It was found that partial conical, median and lateral cracks could emerge in the loading stage of the contact sliding, but radial and lateral cracks could be initiated during unloading. It was also found that the partial conical crack had the lowest initiation load. The intersection of long lateral cracks makes the material removal greater.

Contact sliding Crack initiation Fused silica Material removal Stress field

SCI ; EI

英语

其他

National Natural Science Foundation of China["52293401","52205494","52293405"] ; State Key Laboratory of Mechanical System and Vibration in China[MSV202103] ; Key Research and Development Projects of Shaanxi Province in China[2021GXLH-Z-051] ; Shenzhen Key Laboratory of Cross-scale Manufacturing Mechanics Project[ZDSYS20200810171201007] ; Guangdong Specific Discipline Project[2020ZDZX2006]

Engineering ; Materials Science

Engineering, Manufacturing ; Materials Science, Multidisciplinary

WOS:000989911300001

SPRINGER

20232114125337

Fused silica ; Stresses ; Unloading

Materials Handling Methods:691.2 ; Glass:812.3 ; Materials Science:951

2-s2.0-85159710708

Scopus

1.State Key Laboratory for Manufacturing Systems Engineering & International Joint Laboratory for Micro/Nano Manufacturing and Measurement Technologies,Xi’an Jiaotong University,Xi’an,710049,China
2.State Key Laboratory of Mechanical System and Vibration,Shanghai Jiao Tong University,Shanghai,200240,China
3.Shenzhen Key Laboratory of Cross-scale Manufacturing Mechanics,Southern University of Science and Technology,Shenzhen,Guangdong,518055,China
4.SUSTech Institute for Manufacturing Innovation,Southern University of Science and Technology,Shenzhen,Guangdong,518055,China
5.Department of Mechanics and Aerospace Engineering,Southern University of Science and Technology,Shenzhen,Guangdong,518055,China

Li，Chang Sheng,Zhao，Na,Zhang，Liang Chi,et al. An analytical method for assessing the initiation and interaction of cracks in fused silica subjected to contact sliding[J]. Advances in Manufacturing,2023,11(3):363-377.

Li，Chang Sheng.,Zhao，Na.,Zhang，Liang Chi.,Ding，Jian Jun.,Sun，Lin.,...&Jiang，Zhuang De.(2023).An analytical method for assessing the initiation and interaction of cracks in fused silica subjected to contact sliding.Advances in Manufacturing,11(3),363-377.

Li，Chang Sheng,et al."An analytical method for assessing the initiation and interaction of cracks in fused silica subjected to contact sliding".Advances in Manufacturing 11.3(2023):363-377.