@article{oai:ynu.repo.nii.ac.jp:00012109,
 author = {Aleena, Saleem and Hiroshi, Tamura and Hiroshi, Katsuchi},
 journal = {Proceedings of the 9th International Conference on Fracture, Fatigue and Wear},
 month = {Mar},
 note = {This paper concerns the change in surface topography of structural steel subjected to cyclic plastic deformation considering variable surface conditions and steel types. Notched steel specimens are configured for conducting the experiment under large amplitude cyclic strain. Furthermore, a surface curvature method is proposed for the evaluation of plastic strain from the surface height data obtained by a laser scanner. To this aim, displacement-controlled low cycle fatigue (LCF) tests are performed on mechanically polished and blasted steel specimens. Surface textures are measured at the start and end of fatigue loading cycles and relevant roughness parameters are calculated. Additionally, numerical simulation is conducted for the validation of the strain evaluation method. Regarding the effect of surface finish, blasted specimen showed the lowest fatigue strength with the highest values of surface roughness and plastic strain than the mechanically polished specimens. Analysis results suggest that the roughness parameters can be used for the comprehensive steel surface characterization. Moreover, surface treatment significantly affects the phenomenon of fatigue crack initiation than the types of steel.},
 pages = {175--193},
 title = {Change in Surface Topography of Structural Steel Under Cyclic Plastic Deformation},
 year = {2022}
}