The present work aims at defining the adhesive residual strength of press-fit and adhesively bonded cylindrical joints loaded with a tension tension fatigue cycle. The final purpose is to evaluate the possibility to reduce the interference level by taking advantage of the adhesive strength. The tested specimens are some shaft hub cylindrical joints made of steel alloy (39NiCrMo4). Firstly some coupling and decoupling tests have been performed to evaluate the static strength of the joints, calculated as the addition of the interference contribution Fll with the adhesive contribution Fad. Secondly the fatigue tests have been carried out to evaluate the adhesive residual strength at 106 cycles of a tension tension fatigue test. The joints have been loaded with four different maximum loads equal to different percentages of their static strength, within the range 25% and 50% added to the interference strength. At 106 of loading cycles each specimen has been disengaged and the residual strength of the joint has been determined. The strength reduction occurs only when the adhesively bonded specimens have been loaded over the 25% of its static contribution added to the interference contribution.
Croccolo D., Cuppini R., Vincenzi N. (2008). The adhesive residual strength of press-fit and adhesively bonded cylindrical joints loaded with a tension tension fatigue cycle. LONDON : IOM Communication Ltd.
The adhesive residual strength of press-fit and adhesively bonded cylindrical joints loaded with a tension tension fatigue cycle
CROCCOLO, DARIO;CUPPINI, ROSSANO;VINCENZI, NICOLÒ
2008
Abstract
The present work aims at defining the adhesive residual strength of press-fit and adhesively bonded cylindrical joints loaded with a tension tension fatigue cycle. The final purpose is to evaluate the possibility to reduce the interference level by taking advantage of the adhesive strength. The tested specimens are some shaft hub cylindrical joints made of steel alloy (39NiCrMo4). Firstly some coupling and decoupling tests have been performed to evaluate the static strength of the joints, calculated as the addition of the interference contribution Fll with the adhesive contribution Fad. Secondly the fatigue tests have been carried out to evaluate the adhesive residual strength at 106 cycles of a tension tension fatigue test. The joints have been loaded with four different maximum loads equal to different percentages of their static strength, within the range 25% and 50% added to the interference strength. At 106 of loading cycles each specimen has been disengaged and the residual strength of the joint has been determined. The strength reduction occurs only when the adhesively bonded specimens have been loaded over the 25% of its static contribution added to the interference contribution.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
