Influence of HT on energy absorption in CLS compression process

ABSTRACT

Paper honeycomb and EPE are widely used in the field of packaging protection and safety transportation. Given the cushioning and protective function of unilateral and bilateral composite layered structures (CLSs) including polyethylene foam (EPE) and paper honeycomb, this work focused on analyzing the energy absorption (EA) and compression deformation of honeycomb thickness (HT) CLS under diverse drop impact (DI) status. Experimental observation showed that the increase of HT can improve the impact resistance of EPE and its CLSs. For the CLS with the HTs of 10, 15, 20, and 25 mm, the increase of paper HT may reduce the EA at low impact energy, while enhancing the EA capability at high impact energy. However, the EA of CLSs with a large HT of 70 mm is relatively poor. For the same drop weight mass or impact energy, the stroke efficiency (SE) and specific energy absorption (SEA) of the unilateral CLS with the same HT are, respectively, increased by 39.1% and 16.2%, so the EA of the unilateral CLS is superior to the bilateral CLS.

KEYWORDS:

• honeycomb
• EPE
• compression
• deformation
• property
• energy, absorption
• efficiency
• thicknesses
• drop

Disclosure statement

The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

Data availability statement

The authors confirm that the data supporting the findings of this study are available within the article [and/or] its supplementary materials. The data used to support the findings of this study are available from the corresponding author upon request.

Correction Statement

This article has been corrected with minor changes. These changes do not impact the academic content of the article.

Additional information

Funding

The research work was supported by the Foundation of Xi’an Science and Technology Bureau [grant number 2017080CG/RC043], the Science and Technology Project of Jiangxi Provincial Department of Education [grant number GJJ170950], the Higher Education Teaching Research Project of Jiangxi Provincial Department of Education [grant number JXJG-16-17-9], and the Scientific Research Project of Jiujiang University [grant number 2014KJYB0187]; the Foundation of Xi’an Science and Technology Bureau [2017080CG/RC043].