Add to ORKGFailed shear bolts used in the PTO shaft of an aircraft were analyzed. Examination showed that two of the bolts have fractured under overload. Fractographic study confirmed presence of shear dimples suggesting shear load on the bolts. The Fracture initiation was not associated with any metallurgical defects. The bolts showed a tempered martensitic structure. Bolt material was found to have an average hardness of 444 HV. Since no obvious material abnormalities were found responsible for the failure, it is suggested that the test rig be inspected for abnormalities, present, if any
A few fractured bolts recovered from an in flight incident of an aircraft were received for analysi...
A failed jack attachment bolt belonging to an aircraft was sent to the laboratory for investigation....
A fractured torque link lower sub-assembly and six fractured dowel pins belonging to main under-car...
Failed bolts of main undercarriage torque link of an aircraft were analyzed. Examination did not rev...
Failed bolts of main undercarriage torque link of an aircraft were analyzed. Examination did not rev...
Four failed bolts used in an aircraft were sent to the laboratory for analysis. Examination revealed...
Four failed bolts used in an aircraft were sent to the laboratory for analysis. Examination revealed...
Two fractured bolts belonging to an aircraft engine removal ground equipment were brought to the lab...
Two fractured bolts belonging to an aircraft engine removal ground equipment were brought to the lab...
Two fractured bolts belonging to an aircraft engine removal ground equipment were brought to the lab...
Three Ti-6Al-4V bolts from mid-life jet aircraft failed during service operation. Each of the failed...
Three Ti-6Al-4V bolts from mid-life jet aircraft failed during service operation. Each of the failed...
Two fractured main landing attachment bolts from an aircraft were sent to the laboratory for analysi...
Two fractured main landing attachment bolts from an aircraft were sent to the laboratory for analysi...
A few fractured bolts recovered from an in flight incident of an aircraft were received for analysi...
A few fractured bolts recovered from an in flight incident of an aircraft were received for analysi...
A failed jack attachment bolt belonging to an aircraft was sent to the laboratory for investigation....
A fractured torque link lower sub-assembly and six fractured dowel pins belonging to main under-car...
Failed bolts of main undercarriage torque link of an aircraft were analyzed. Examination did not rev...
Failed bolts of main undercarriage torque link of an aircraft were analyzed. Examination did not rev...
Four failed bolts used in an aircraft were sent to the laboratory for analysis. Examination revealed...
Four failed bolts used in an aircraft were sent to the laboratory for analysis. Examination revealed...
Two fractured bolts belonging to an aircraft engine removal ground equipment were brought to the lab...
Two fractured bolts belonging to an aircraft engine removal ground equipment were brought to the lab...
Two fractured bolts belonging to an aircraft engine removal ground equipment were brought to the lab...
Three Ti-6Al-4V bolts from mid-life jet aircraft failed during service operation. Each of the failed...
Three Ti-6Al-4V bolts from mid-life jet aircraft failed during service operation. Each of the failed...
Two fractured main landing attachment bolts from an aircraft were sent to the laboratory for analysi...
Two fractured main landing attachment bolts from an aircraft were sent to the laboratory for analysi...
A few fractured bolts recovered from an in flight incident of an aircraft were received for analysi...
A few fractured bolts recovered from an in flight incident of an aircraft were received for analysi...
A failed jack attachment bolt belonging to an aircraft was sent to the laboratory for investigation....
A fractured torque link lower sub-assembly and six fractured dowel pins belonging to main under-car...