| EVALUATION OF FATIGUE LIFE OF AUTOMOTIVE ENGINE VALVES
CONSIDERING THE DYNAMIC BEHAVIOR |
| Namgyu Jun , Chang-Sung Seok , Kibum Park |
1School of Mechanical Engineering, Sungkyunkwan University
2Department of Mechanical Engineering, Sungkyunkwan University |
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| ABSTRACT |
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Owing to the harsh operating environment inside an engine, the engine valves have a durability issue and
exhibit the characteristics of accelerated fatigue failure under the influence of the dynamic load because of their dynamic
behavior. This study proposes a fatigue life evaluation method using the maximum impact stress that can accurately evaluate
the fatigue life of engine valves. In addition, the major engine design factors affecting the dynamic behavior of an engine
valves were derived. It was confirmed that the impact speed between the valve head and seat is closely related to the fatigue
characteristics of the engine valve. |
| Key Words:
Engine valve, Fatigue test, Fatigue life evaluation, Dynamic load |
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Corresponding Author.
Chang-Sung Seok , Email. 
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