首页|The crashworthiness of hierarchical sandwich circular tubes
The crashworthiness of hierarchical sandwich circular tubes
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NETL
NSTL
Elsevier
Sandwich tubes have been extensively investigated; however, there are limited studies on the hierarchical sandwich tubes. Inspired by the hierarchy configuration and sandwich column, innovative hierarchical sandwich circular (HSC) tubes were developed with the aim of improving the crashworthiness of sandwich tubes. The compressive characteristics of HSC tubes with various wall thicknesses, hierarchical orders and number of ribs (such as four, six and eight ribs for HSC-R4, HSC-R6 and HSC-R8) were numerically investigated. The SEA of HSC-R4, HSC-R6 and HSC-R8 tubes rises with hierarchical order, wall thickness and number of rib. Compared with a hollow circular tube, the SEA of HSC-R8-3 tube increases by more than 1.6 times. Moreover, HSC tubes with thicker inner cores display better compressive performance. In addition, the theory model is able to well estimate the mean crushing force of HSC-R4.
Energy absorptionSandwich tubeHierarchicalCircular tubeCrashworthinessENERGY-ABSORPTION CHARACTERISTICSCRUSHING ANALYSISMULTICELL TUBESDESIGNOPTIMIZATIONPERFORMANCE
NETL
NSTL
Elsevier
