Mechanical Behaviour of Bolted Joints Under Impact Rates of Loading

作者: Andrew VanderKlok

DOI:

关键词: Bolted jointJoint (geology)Composite materialTension (physics)BucklingCompression (physics)Structural engineeringSplit-Hopkinson pressure barEngineeringUltimate tensile strengthDynamic loading

摘要: Abstract : Bolted joints are extensively used in many automotive and aeronautical sectors where two members bolted together. This particular method of fastening is vastly industrial disciplines as it serves an easy non-destructive to join subsequently disassemble a complex structure. Since, constitute integral part structural components, this directly implicates the necessity investigate mechanical response under variety loading rates ensure integrity. Existing literature exists addressing joint failure for myriad different geometrical configurations, identifies key parameters associated with it; instance, non-dimensional ratios between width (w), edge distance (e), diameter hole/bolt (d) thickness (t). However, very limited integrity these if subjected time-dependent conditions (for example, impact). The present study aims at investigating dynamic behavior role affecting failure. Split Hopkinson Pressure Bar technique has been employed characterize impact both compression tensile conditions. Hole elongation buckling modes compressive conditions, whereas tear-out, tension, cleavage constitutes predominant Aluminum-Aluminum Aluminum-Glass fiber reinforced composite were tested tension respectively. An experimental was developed measuring monitoring bolt preload during impact. It determined that asymptotic region shifts from static

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