Dynamic Stress Concentration Factor in the Strip Plate with Fillet

Dynamic and static stress concentration factors ao, and as generated at a fillet part are observed by photoelastic method, and the comparison between two different factors is carried out. Next, the reflection coefficient A is calculated using the height of incident and reflected waves measured by the strain gauge. As the result, following relationship a= ( I+ A )as is derived experimentally. The equation shows that the maximum dynamic stress concentration factor a h is easily calculated using the static stress concentration factor as and the reflection coefficient A . RQum6 : Les facteurs de concentration de conuainte dynamique CXDmay et statique as dans un epaulement sont observes photoClastiquement. Ensuite. le coefficient de ritlexion A est calculk en utilisant les hauteurs de vagues incidentes et rktlechies mesurees par jauge fil resistanl. La relation CiDmax = (1 + A ) as est obtenue exp6rimmtalernent. Cette equation montre que Ie facteur dynamique de cdncenlrarion de con~rainte est facilernenr calculk en utilisanr le facteur statique er le coefficient de reflexion A .