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A platform for research: civil engineering, architecture and urbanism
Experimental and numerical study on crashworthiness of bionic hedgehog spine thin-walled structures
https://orcid.org/0000-0003-0739-5423
Abstract Natural impact-resistant biomaterials, with ingenious and exquisite geometric configurations, have resistance to external impact, and thus provide a perfect bionic example for the optimization design and crashworthiness improvement of new thin-walled structures. Based on the configuration characteristics of hedgehog spine, this paper designed the bulkheaded hedgehog spine thin-walled structure and studied the dynamic behavior of thin-walled structures under axial and oblique impact compression by combining 3D metal printing, quasi-static compression test and finite element simulation. The results show that the combined effect of the ribs, inner walls and bulkheads of the bulkheaded hedgehog spine thin-walled structure effectively improves its deformation coordination ability and crashworthiness. The specific energy absorption of the bulkheaded hedgehog spine thin-walled structure under axial or oblique impact is about 4.1, 2.1 and 1.4 times that of the single-wall cylinder, spider web and simplified hedgehog spine thin-walled structures, respectively.
Highlights The crashworthiness of the bionic hedgehog spine thin-walled structure was investigated through experiment and simulation. Compared with traditional thin-wall structures, the crashworthiness of innovative thin-walled structure are greatly improved. The hedgehog spine thin-walled structure has better deformation coordination and higher material utilization efficiency.
Experimental and numerical study on crashworthiness of bionic hedgehog spine thin-walled structures
https://orcid.org/0000-0003-0739-5423
Abstract Natural impact-resistant biomaterials, with ingenious and exquisite geometric configurations, have resistance to external impact, and thus provide a perfect bionic example for the optimization design and crashworthiness improvement of new thin-walled structures. Based on the configuration characteristics of hedgehog spine, this paper designed the bulkheaded hedgehog spine thin-walled structure and studied the dynamic behavior of thin-walled structures under axial and oblique impact compression by combining 3D metal printing, quasi-static compression test and finite element simulation. The results show that the combined effect of the ribs, inner walls and bulkheads of the bulkheaded hedgehog spine thin-walled structure effectively improves its deformation coordination ability and crashworthiness. The specific energy absorption of the bulkheaded hedgehog spine thin-walled structure under axial or oblique impact is about 4.1, 2.1 and 1.4 times that of the single-wall cylinder, spider web and simplified hedgehog spine thin-walled structures, respectively.
Highlights The crashworthiness of the bionic hedgehog spine thin-walled structure was investigated through experiment and simulation. Compared with traditional thin-wall structures, the crashworthiness of innovative thin-walled structure are greatly improved. The hedgehog spine thin-walled structure has better deformation coordination and higher material utilization efficiency.
Experimental and numerical study on crashworthiness of bionic hedgehog spine thin-walled structures
https://orcid.org/0000-0003-0739-5423
Abstract Natural impact-resistant biomaterials, with ingenious and exquisite geometric configurations, have resistance to external impact, and thus provide a perfect bionic example for the optimization design and crashworthiness improvement of new thin-walled structures. Based on the configuration characteristics of hedgehog spine, this paper designed the bulkheaded hedgehog spine thin-walled structure and studied the dynamic behavior of thin-walled structures under axial and oblique impact compression by combining 3D metal printing, quasi-static compression test and finite element simulation. The results show that the combined effect of the ribs, inner walls and bulkheads of the bulkheaded hedgehog spine thin-walled structure effectively improves its deformation coordination ability and crashworthiness. The specific energy absorption of the bulkheaded hedgehog spine thin-walled structure under axial or oblique impact is about 4.1, 2.1 and 1.4 times that of the single-wall cylinder, spider web and simplified hedgehog spine thin-walled structures, respectively.
Highlights The crashworthiness of the bionic hedgehog spine thin-walled structure was investigated through experiment and simulation. Compared with traditional thin-wall structures, the crashworthiness of innovative thin-walled structure are greatly improved. The hedgehog spine thin-walled structure has better deformation coordination and higher material utilization efficiency.
Experimental and numerical study on crashworthiness of bionic hedgehog spine thin-walled structures
Liu, Bin (author) / Xu, Xianghong (author)
Thin-Walled Structures ; 189
2023-05-21
Article (Journal)
Electronic Resource
English
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