Experimental Verification of the Hole Drilling Method with Inverse Layers Removing

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• 作者：Stanislav Hol&yacute ; ^a ; Otakar Weinberg^b ; Jaroslav Vá ; claví ; k^b ; ^{vaclavik@vzuplzen.cz" class="auth_mail" title="E-mail the corresponding author}
• 关键词：Hole-drilling method ; residual stresses ; incremental drilling method ; inverse hole-drilling.
• 刊名：Materials Today: Proceedings
• 出版年：2016
• 出版时间：2016
• 年：2016
• 卷：3
• 期：4
• 页码：983-986
• 全文大小：189 K

文摘

The method for residual stress measurement is presented using through hole-drilling and investigation of the residual stresses relief with the help of incremental layers removing. Drilling the rosette hole from the opposite side - the inverse layers removing - have to be used for evaluation of residual stress near the back side of the object wall in cases when this surface is inaccessible for any hole-drilling instrument. The strain gauge rosette is installed on the opposite side of the drilled wall and a new mechanical task of incremental layers removal must be solved. The calibration constants for residual stress evaluation of HBM RY21 type rosette for this case were derived using numerical modeling by FEA and its experimental verification.