TY - JOUR
T1 - Effects of surface roughness and lubrication on the early stages of fretting of mechanical lap joints
AU - Eriten, Melih
AU - Polycarpou, Andreas A.
AU - Bergman, Lawrence A.
N1 - Funding Information:
This research was supported by the National Science Foundation under Grant No. NSF CMMI 08-00208 . The authors would also like to thank Seung-Min Yeo of the Department of Mechanical Science and Engineering at the University of Illinois at Urbana-Champaign, particularly for his help with the SEM micrographs.
PY - 2011/9/2
Y1 - 2011/9/2
N2 - This paper examines the effects of surface roughness and lubrication on the early stages of fretting response of aluminum and steel lap joint samples. Qualitative and quantitative changes in fretting loops due to changes in loading; roughness characteristics, and contact conditions are analyzed. Roughness is found to influence friction force, tangential joint stiffness, partial slip displacements, and energy dissipation per fretting cycle. Moreover, despite growing weaker, the influence of roughness is shown to prevail under boundary or starved lubrication using a synthetic polyol ester lubricant. Furthermore, galling is shown to complicate the fretting response of the aluminum joints under heavy preloading conditions.
AB - This paper examines the effects of surface roughness and lubrication on the early stages of fretting response of aluminum and steel lap joint samples. Qualitative and quantitative changes in fretting loops due to changes in loading; roughness characteristics, and contact conditions are analyzed. Roughness is found to influence friction force, tangential joint stiffness, partial slip displacements, and energy dissipation per fretting cycle. Moreover, despite growing weaker, the influence of roughness is shown to prevail under boundary or starved lubrication using a synthetic polyol ester lubricant. Furthermore, galling is shown to complicate the fretting response of the aluminum joints under heavy preloading conditions.
KW - Fretting loops
KW - Joint stiffness/damping
KW - Lap joints
KW - Surface roughness
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U2 - 10.1016/j.wear.2011.06.011
DO - 10.1016/j.wear.2011.06.011
M3 - Article
AN - SCOPUS:79961128980
SN - 0043-1648
VL - 271
SP - 2928
EP - 2939
JO - Wear
JF - Wear
IS - 11-12
ER -