TY - JOUR
T1 - Incipient sliding of adhesive contacts
AU - Pérez-Ràfols, Francesc
AU - Nicola, Lucia
PY - 2021
Y1 - 2021
N2 - A model is proposed herein to investigate the incipient sliding of contacts in the presence of both friction and adhesion, where the interfacial response is modeled based on traction-separation laws. A Maugis-like parameter is defined to characterize the response in the tangential direction. Subsequently, the model is used to investigate the contact between a smooth cylinder and a flat body, where adhesion-friction interactions are strong. A range of behaviors are observed when a tangential displacement is imposed: When the parameter is low, the contact pressure exhibits a relatively constant profile; when it is high, a pressure spike is observed at the edge of the contact. This difference is caused by a significant interface compliance in the former case, which limits the amount of slip. The results for the mid-range values of the Maugis-like parameter can qualitatively replicate various experiments performed using polydimethylsiloxane (PDMS) balls.
AB - A model is proposed herein to investigate the incipient sliding of contacts in the presence of both friction and adhesion, where the interfacial response is modeled based on traction-separation laws. A Maugis-like parameter is defined to characterize the response in the tangential direction. Subsequently, the model is used to investigate the contact between a smooth cylinder and a flat body, where adhesion-friction interactions are strong. A range of behaviors are observed when a tangential displacement is imposed: When the parameter is low, the contact pressure exhibits a relatively constant profile; when it is high, a pressure spike is observed at the edge of the contact. This difference is caused by a significant interface compliance in the former case, which limits the amount of slip. The results for the mid-range values of the Maugis-like parameter can qualitatively replicate various experiments performed using polydimethylsiloxane (PDMS) balls.
KW - adhesion
KW - incipient sliding
KW - traction-separation laws
UR - http://www.scopus.com/inward/record.url?scp=85120624761&partnerID=8YFLogxK
U2 - 10.1007/s40544-021-0546-9
DO - 10.1007/s40544-021-0546-9
M3 - Article
AN - SCOPUS:85120624761
SN - 2223-7690
VL - 10
SP - 963
EP - 976
JO - Friction
JF - Friction
IS - 6
ER -