Double Holes Drilling法による異方性材料の残留応力の測定理論

概要

論文の詳細を見る
The semi-destructive hole drilling method for measurement of residual stresses using electrical resistance strain gages has been used for a wide range of engineering materials. In this paper, a new method with two holes (measurement hole and release hole) based on the elastic stress concentration by successive interactions of the neighboring holes is proposed for the case of anisotropic materials. This method is named as Double Holes Drilling Method. Several numerical results are shown as the variation of strains which detect with three gages around the measurement hole, the values of parameters such as distance of two holes, principal angle of anisotropy, radius of release hole and so on. Then, the back analysis by use of the measured strains is given for determining the residual biaxial stresses.
一般社団法人日本機械学会の論文
1998-06-25