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

Chang-Sheng Li , Na Zhao , Liang-Chi Zhang , Jian-Jun Ding , Lin Sun , Duan-Zhi Duan , Cheng-Wei Kang , Zhuang-De Jiang

Advances in Manufacturing ›› 2023, Vol. 11 ›› Issue (3) : 363 -377.

PDF
Advances in Manufacturing ›› 2023, Vol. 11 ›› Issue (3) : 363 -377. DOI: 10.1007/s40436-023-00444-2
Article

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

Author information +
History +
PDF

Abstract

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.

Keywords

Fused silica / Contact sliding / Stress field / Crack initiation / Material removal

Cite this article

Download citation ▾
Chang-Sheng Li,Na Zhao,Liang-Chi Zhang,Jian-Jun Ding,Lin Sun,Duan-Zhi Duan,Cheng-Wei Kang,Zhuang-De Jiang. An analytical method for assessing the initiation and interaction of cracks in fused silica subjected to contact sliding. Advances in Manufacturing, 2023, 11(3): 363-377 DOI:10.1007/s40436-023-00444-2

登录浏览全文

4963

注册一个新账户 忘记密码

References

Funding

National Natural Science Foundation of China http://dx.doi.org/10.13039/501100001809(52293401)

State Key Laboratory of Mechanical System and Vibration(MSV202103)

Key Research and Development Projects of Shaanxi Province http://dx.doi.org/10.13039/501100015401(2021GXLH-Z-051)

Shenzhen Key Laboratory of Cross-scale Manufacturing Mechanics Project(ZDSYS20200810171201007)

Guangdong Specific Discipline Project(2020ZDZX2006)

AI Summary AI Mindmap
PDF

122

Accesses

0

Citation

Detail

Sections
Recommended

AI思维导图

/