公开(公告)号：US5822876A

公开(公告)日：1998-10-20

申请号：US637874

申请日：1996-04-25

申请人： Edwin G. Haas ,  James R. Kennedy ,  Alvin Levy ,  John M. Papazian

发明人： Edwin G. Haas ,  James R. Kennedy ,  Alvin Levy ,  John M. Papazian

IPC分类号： G01B5/30 ,  G01L5/00 ,  G01B3/56

CPC分类号： G01L5/0047 ,  G01B5/30 ,  Y10S33/13

摘要： A gauge for measuring an out-of-plane surface displacement profile around a cold-worked fastener hole in relation to the distribution of residual compressive stresses around the hole and related fatigue life. The gauge has a deformable strain sensor positionable to be deformed in accord with the out-of-plane surface of the structural material circumferentially surrounding the cold-worked hole. A measurement reporting readout device is in communication with the strain sensor and relates three-dimensional surface-profile measurement data in accord with strain sensor deformation to determine or verify the cold expansion magnitude, uniformity and consequent fatigue life through three-dimensional elastoplastic finite element comparative analyses and/or experimental measurements for a hole in any material of given thickness.

摘要翻译： 相对于围绕孔的残余压应力分布和相关的疲劳寿命来测量冷加工紧固件孔周围的平面外表面位移曲线的量规。 该测量仪具有可变形的应变传感器，其可定位成与周围围绕冷加工孔的结构材料的面外表面变形。 测量报告读出装置与应变传感器通信，并将三维表面轮廓测量数据与应变传感器变形相关联，以通过三维弹塑性有限元比较来确定或验证冷膨胀量值，均匀度和随之而来的疲劳寿命 在任何给定厚度的材料中的孔的分析和/或实验测量。