Development of a Split Hopkinson Pressure Bar Machine for High Strain Rate Testing of Bonded Joints

The design of adhesively bonded connections for structural applications has recently become a major field research, with extensive in the automotive and aerospace industries. In these structures, joints are often subjected to important static dynamic loads, which require careful geometrical dimensioning material selection. performance analysis adhesive under conditions is made numerical modeling supported by experimental studies that can correctly characterize their mechanical behavior. To obtain this characterization impact conditions, it critical employ equipment suitable testing adhesives joints. For reason, an innovative Split Hopkinson Pressure Bar machine was designed. This includes pneumatic actuator capable operating up 30 m/s both directions, lever-based braking system, stopping tensile compression tests. pressure bar setups, as well support its characteristics, also described.