Crushing behavior of multi-cell tubes with a novel pattern of design for their cross-section under multiple crushing angles. Issue 28 (16th December 2022)

• Record Type: Journal Article
• Authors: Pirmohammad, Sadjad; Ghahremanzadeh, Zahra
• Is Part Of: Mechanics of advanced materials and structures. Volume 29:Issue 28(2022)
• Page Start: 7441
• Page End: 7458
• Publication Date: 2022-12-16
• Subjects: Crushing behavior -- decagonal structure -- crushing angle -- SAW method -- multi-objective optimization; Composite materials -- Mechanical properties -- Periodicals; Composite construction -- Periodicals; 620.118
• DOI: 10.1080/15376494.2021.2000079
• Languages: English
• ISSNs: 1537-6494

Abstract

Abstract: Crushing behavior of multi-cell tubes with a novel pattern of design for their cross-section is investigated under axial and oblique loads. The tubes have hexagonal, octagonal and decagonal shapes. According to SAW method, the tubes of H-1, O-1 and D-1 show better crushing performance, and the decagonal tube of D-1 is found as the best energy absorber. Multi-objective optimization design of the D-1 is finally provided using NSGA-II and RBF metamodels. The optimal decagonal tube provides on average of 248% and 61% higher SEA and CFE, respectively, compared to the D-0. However, it offers 11% higher PCF than the D-0.