شماره ركورد كنفرانس :
128
عنوان مقاله :
Residual Stress Measurement in Quenched Samples using Ring-Core Technique
عنوان به زبان ديگر :
Residual Stress Measurement in Quenched Samples using Ring-Core Technique
پديدآورندگان :
Mahmoudi A. H نويسنده , Rabiei S نويسنده
كليدواژه :
Integral method , Ring-Core method , Residual stress , Quench treatment , Incremental strain method
عنوان كنفرانس :
Proceedings of Experimental solid mechanics
چكيده لاتين :
Ring-Core Method is a destructive technique for measuring residual stresses. In this technique depth of a cut
is increased incrementally in a part containing residual stresses. The strain gauges are attached at the surface
of the components similar to the center hole drilling technique. However, it can measure deeper residual
stresses in comparison with the former technique. In ring core technique, strains are measured at the top of
the core after each slot. Residual stresses are then calculated using relaxation coefficients which are
determined experimentally or numerically.
In the present research, different numerical approaches are studied to measure residual stresses. The residual
stresses in cube shaped components and cross beam made of stainless steel 316L are measured. Quenching
process was used to induce residual stresses into cube shaped specimens. Quenching process was performed
in a way that different levels of residual stresses were achieved. Furthermore, finite element analyses of the
ring core technique and residual stress inducing methods were carried out. The experimental measurements
of residual stresses were then compared with those obtained numerically. The results showed that Ring-Core
technique is sensitive to the effects of plasticity.
شماره مدرك كنفرانس :
2716282