TY - GEN
T1 - Derivation of the equation of caustics for the experimental assessment of distributed contact loads with friction in two dimensions
AU - Spitas, Vasilios
AU - Spitas, Christos
AU - Papadopoulos, George
AU - Costopoulos, Theodore
PY - 2013
Y1 - 2013
N2 - The stress-optical method of caustics is an experimental technique that can yield valuable data to assess the stress-state in the vicinity of a singularity such as the point at which a concentrated load acts or the tip of a static or a propagating crack. The present work aims to develop a mathematical background, which can be used to evaluate the complex shapes of the singular surfaces of the caustics produced from the Hertzian load distribution at the contact area between two sliding elastic bodies in order to derive the magnitude of the load and the prevailing mean coefficient of friction. The theoretical caustics are calculated numerically and plotted for various values of the coefficient of friction and experimental evidence supporting the validity of the analysis is given.
AB - The stress-optical method of caustics is an experimental technique that can yield valuable data to assess the stress-state in the vicinity of a singularity such as the point at which a concentrated load acts or the tip of a static or a propagating crack. The present work aims to develop a mathematical background, which can be used to evaluate the complex shapes of the singular surfaces of the caustics produced from the Hertzian load distribution at the contact area between two sliding elastic bodies in order to derive the magnitude of the load and the prevailing mean coefficient of friction. The theoretical caustics are calculated numerically and plotted for various values of the coefficient of friction and experimental evidence supporting the validity of the analysis is given.
UR - http://www.scopus.com/inward/record.url?scp=84870752851&partnerID=8YFLogxK
U2 - 10.1007/978-3-642-33968-4_21
DO - 10.1007/978-3-642-33968-4_21
M3 - Conference contribution
AN - SCOPUS:84870752851
SN - 9783642339677
T3 - Lecture Notes in Applied and Computational Mechanics
SP - 337
EP - 350
BT - Recent Advances in Contact Mechanics - Papers Collected at the 5th Contact Mechanics International Symposium, CMIS 2009
T2 - 5th Contact Mechanics International Symposium, CMIS 2009
Y2 - 28 April 2009 through 30 April 2009
ER -