Picking Up the Optimum Triggering Combinations of Crashworthy 3D-Printed Sustainable Structures: An Experimental Study in Al-Kharj Governorate, KSA 


Vol. 25,  No. 10, pp. 3911-3930, Oct.  2024
10.1007/s12221-024-00688-0


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  Abstract

Introducing open holes or triggers in the crashworthy structures to reduce the weight or enhance the crash performance became popular. For this reason, this paper aims to answer the next question: To what extent can the trigger mechanisms infuence the crashworthiness performance and failure mode of 3D-printed poly-lactic acid (PLA) square tubes for crashwor thy applications? Consequently, four design parameters (trigger shape, number of triggers per face, depth of the trigger, and trigger position), each with three levels, were utilized for this goal. The planned tubes are being created using a 3D printing technique and then exposed to quasi-static axial compression loading. The crashing load and the absorbed energy against displacement responses were ofered, as well as the failure histories being traced. The crashworthiness exploration was car ried out by assessing various crash indicators, i.e., initial peak crash load ( Fip) , total energy absorbed (U), specifc absorbed energy (SEA), mean crash load (Fm), and crash force efciency (CFE). Additionally, the best triggering combinations are examined through the use of the complex proportional assessment (COPRAS) multi-attribute decision-making (MADM) method. According to the results, the studied parameters have appositive signifcance on the crashworthiness performance of 3D-printed square tubes. In light of the COPRAS fndings, S3/8 T represents the best triggering mechanisms for crashworthy structures subject to axial compression loading. To put it in a nutshell, presenting triggers have a substantial efect on the crashworthiness performance of the square tubes.

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  Cite this article

[IEEE Style]

M. Allah, M. M. A. Allah, M. F. A. El-Halim, M. I. A. E. Aal, M. A. A. El-baky, "Picking Up the Optimum Triggering Combinations of Crashworthy 3D-Printed Sustainable Structures: An Experimental Study in Al-Kharj Governorate, KSA," Fibers and Polymers, vol. 25, no. 10, pp. 3911-3930, 2024. DOI: 10.1007/s12221-024-00688-0.

[ACM Style]

Mahmoud Allah, Mahmoud M. Awd Allah, Mahmoud F. Abd El-Halim, Mohamed Ibrahim Abd El Aal, and Marwa A. Abd El-baky. 2024. Picking Up the Optimum Triggering Combinations of Crashworthy 3D-Printed Sustainable Structures: An Experimental Study in Al-Kharj Governorate, KSA. Fibers and Polymers, 25, 10, (2024), 3911-3930. DOI: 10.1007/s12221-024-00688-0.

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pISSN : 1229 - 9197
eISSN : 1875 - 0052

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