Dynamic crush behavior of adhesive-bonded aluminum tubular structure—Experiment and numerical simulation

•Adhesive-bonded aluminum tubular structures were dynamically compressed.•Numerical simulation considering adhesive layer was also conducted.•Effect of strain hardening property on deformation patterns was investigated.•Separation behavior of bonded flange was reproduced in computation.

Two kinds of tubular structures were axially compressed under impact condition, where type-A structure consisted of hat shaped part and flat plate and type-B consisted of two similar hat parts. They were constructed with adhesive. Sheet materials were A1050 and A5052. The crush strength was greater in type-B. Separation of bonded flange was almost suppressed in A1050 type-A and -B structures, though it was highly visible for A5052 structure, especially in type-A. Predicted deformation behavior with separation behavior of the bonded flange by finite element method well agreed with the corresponding experimental result.