Mechanical Behavior of Multi-Material Single-Lap Joints under High Rates of Loading Using a Split Hopkinson Tension Bar

In the presented research, a split Hopkinson tension bar (SHTB) was used to measure mechanical response of multi-material single-lap joints in high-rate loading regime. High-performance applications require high-quality measurements properties define safe design rules. Servo-hydraulic machines are commonly investigate such small structures, but they prone produce oscillation-affected force measurements. To improve force–displacement measurements, an SHTB chosen these joints. Three different kinds were tested: bolted joints, bonded and bonded/bolted One substrate made aluminum (Al-2024-T3) other one laminated composite (TC250). A countersunk titanium bolt crash-optimized epoxy adhesive (Betamate 1496 V) fasten constant impedance mounting device implemented limit wave reflections signal quality. Quasi-static experiments at servo-hydraulic machine performed compare data with respective from conditions. The research shows that tests can be achieved by employing SHTB. With this measurement, rate dependency behavior identified. dynamic increase (DI), which is ratio high over quasi-static loading, measured for each joint types, where max DI = 1.1 bolted, 1.4 bonded, 1.6