01551nas a2200145   4500008004100000245011300041210006900154260000800223300001500231490000700246520096900253100002901222700002301251856013101274       2019                        eng d00aExperimental investigation on performance of helical spring lock washer under different operating conditions0 aExperimental investigation on performance of helical spring lock  cJUL  a992–10000 v193 a<p>In mechanical systems, emphasis has been given to the selection and health monitoring of both bolt and nut in the bolted joint assembly; less attention has been given to the performance of spring washers due to tightening torque, usage duration and reuse. In the present experimental investigation, the load–deflection characteristics of helical spring lock (HSL) washer during compressive loading and unloading are determined using newly designed and developed test rig. Also, the load–deflection characteristics of the HSL washers are examined for reuse cycles. Additionally, the effect of compressive loading and unloading on the reaction load within elastic limit is determined. Further, the loss of helix height due to compressive loading and its effect on strain energy is examined. The tests have evidenced of loss of helix height and strain energy of HSL washer due to compressive loading which deteriorates its functionality in further usage.</p>
1 aWagh, Hemant, Krishnarao1 aDesale, Girish, R.  uhttps://library.ncl.res.in/content/experimental-investigation-performance-helical-spring-lock-washer-under-different-operating