Can everyone give some reference about cohesion and internal friction angle?

29 May 2019 1 446 Report

i have to know interval that is used to determine chalk based to its shear strength parameter

Hello Dear,

In this paper below, COF and surface roughness measurements have been discussed thoroughly.

https://www.researchgate.net/publication/330815643_Enhancing_the_Tribological_Behavior_of_Lubricating_Oil_by_Adding_TiO_2_Graphene_and_TiO_2_Graphene_Nanoparticles

Don't hesitate to ask me further assistance.

Regards,

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