TY - JOUR
T1 - Contact area measurements reveal loading-history dependence of static friction
AU - Rubinstein, S. M.
AU - Cohen, G.
AU - Fineberg, J.
PY - 2006
Y1 - 2006
N2 - We perform quantitative measurements of the actual area of contact, A, formed by two rough solids that are subjected to different normal loading protocols. We show that microscopic motion, induced by Poisson contraction or expansion, produces a strong memory dependence of A on the loading history with a large corresponding influence on the system's frictional strength. These effects, together with accompanying transient dynamics, are independent of humidity, loading rates, and material contrast across the interface.
AB - We perform quantitative measurements of the actual area of contact, A, formed by two rough solids that are subjected to different normal loading protocols. We show that microscopic motion, induced by Poisson contraction or expansion, produces a strong memory dependence of A on the loading history with a large corresponding influence on the system's frictional strength. These effects, together with accompanying transient dynamics, are independent of humidity, loading rates, and material contrast across the interface.
UR - http://www.scopus.com/inward/record.url?scp=33745625863&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.96.256103
DO - 10.1103/PhysRevLett.96.256103
M3 - Article
AN - SCOPUS:33745625863
SN - 0031-9007
VL - 96
JO - Physical Review Letters
JF - Physical Review Letters
IS - 25
M1 - 256103
ER -