期刊文献+
共找到1篇文章
< 1 >
每页显示 20 50 100
Experimental investigation of junction growth of rough contacts using X-ray computed tomography
1
作者 runliang wang Jianhua LIU +2 位作者 Bo LIU Duo JIA Xiaoyu DING 《Friction》 SCIE EI CAS CSCD 2024年第11期2519-2531,共13页
The real contact area(RCA)of randomly rough contacts has received a great deal of attention because it correlates strongly with friction,lubrication,sealing,and conductivity.Simulations have revealed that the RCA asso... The real contact area(RCA)of randomly rough contacts has received a great deal of attention because it correlates strongly with friction,lubrication,sealing,and conductivity.Simulations have revealed that the RCA associated with deterministic normal squeezing loads increases when tangential loads are also applied,in a phenomenon called junction growth.However,experimental investigations of the junction growth of randomly rough contacts are rare.Here,we used X-ray computed tomography(CT)to measure junction growth when two aluminum alloy surfaces were in contact.A high-resolution experimental setup was used to apply loads and observe contact behaviors at a resolution of 4μm.The RCA and average contact gaps were computed using a three-dimensional(3D)geometric model constructed from gray CT images using the Otsu thresholding method.The results showed that the RCA increased as the normal load increased.The RCA increased by 22.67%after a tangential load was applied(junction growth),and the average gap decreased by 14.01%after a tangential load was applied.Thus,X-ray CT accurately measured the junction growth as a novel quantitative method. 展开更多
关键词 three-dimensional(3D)contact analyses real contact area(RCA) junction growth X-ray computed tomography(CT) assembly interfaces
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部