Field of residual stresses in a coating with crack |
| |
Authors: | V F Chekurin H V Pokhmurs’ka |
| |
Affiliation: | (1) Pidstryhach Institute for Applied Problems in Mechanics and Mathematics, Ukrainian Academy of Sciences, Lviv |
| |
Abstract: | We consider an object with coating deposited on its plane surface. The coating is subjected to the action of known uniform
uniaxial tensile residual stresses. We analyze the field of residual stresses formed in the coating as a result of the formation
of a long flat crack perpendicular both to the direction of action of tensile stresses and to the surface of the coating.
The problem is studied in the two-dimensional statement. The stress field is investigated in the sections perpendicular both
to the crack plane and to the surface of the coating. Two cases are analyzed, namely, the case of a through crack (through
the entire thickness of the coating) and the case of a nonthrough crack with plastic zone on its continuation. The performed
numerical analysis enables us to estimate the possibility of subsequent fracture of the coating after crack initiation.
__________
Translated from Fizyko-Khimichna Mekhanika Materialiv, Vol. 42, No. 2, pp. 80–88, March–April, 2006. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|