Experimental Study on Fatigue Behaviour of Shot-Peened Open-Hole Steel Plates.
Materials (Basel)
; 10(9)2017 Aug 25.
Article
in En
| MEDLINE
| ID: mdl-28841160
ABSTRACT
This paper presents an experimental study on the fatigue behaviour of shot-peened open-hole plates with Q345 steel. The beneficial effects induced by shot peening on the fatigue life improvement are highlighted. The characteristic fatigue crack initiation and propagation modes of open-hole details under fatigue loading are revealed. The surface hardening effect brought by the shot peening is analyzed from the aspects of in-depth micro-hardness and compressive residual stress. The fatigue life results are evaluated and related design suggestions are made as a comparison with codified detail categories. In particular, a fracture mechanics theory-based method is proposed and demonstrated its validity in predicting the fatigue life of studied shot-peened open-hole details.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Type of study:
Prognostic_studies
Language:
En
Journal:
Materials (Basel)
Year:
2017
Document type:
Article
Affiliation country:
China