Morphological parameters of both surfaces of coupled joint

作者：Fan Xiang; Cao Ping^*; Huang Xue-jiao; Chen Yu

来源：Journal of Central South University (English Edition), 2013, 20(3): 776-785.

DOI：10.1007/s11771-013-1548-1

• coupled joint
• morphology
• statistical parameter
• textural parameter
• profile mean angle
• envelop area

Twenty one joints were made with Brazilian tests and each surface was scanned by the Talysurf CLI 2000. Morphological characteristics of joint surface were quantified by statistical and textural parameters. By the contrast of these parameters between both sides of each coupled joint, the following conclusions are drawn. The upper and lower surfaces of coupled joints have approximately equal values of S (p)(maximum height of joint surface), S (a)(arithmetic mean height of joint surface) and S (q)(root mean square height of joint surface), but the S (sk)(skewness of the height distribution of joint surface) values of the two surfaces of a coupled joint are different, one is positive while the other is negative. The S (al)(auto-correlation length) parameter values of both surfaces of each coupled joint are quite close, and the S (tr)(texture aspect ratio) values have the same situation to the S (al) parameter, but the same parameters of different surfaces have big differences which illustrates its own characteristics of each joint. The two surfaces of each coupled joint have similar values of (mean profile angle) which can be used to deduce the value of each other.

• 出版日期2013-3
• 单位中南大学