Fabrication and Testing of Low Strength Geocells Using 3D Printed Polypropylene Sheets

Krishna, A and Latha, GM (2024) Fabrication and Testing of Low Strength Geocells Using 3D Printed Polypropylene Sheets. In: International Journal of Geosynthetics and Ground Engineering, 10 (3).

PDF fab_tes_str_geo_pri_pol-she_10_3_2024.pdf - Published Version Restricted to Registered users only Download (3MB) | Request a copy

Abstract

Geocells are being extensively used in road and rail embankments, pavements and retaining structures. Research on the cyclic load performance of these structures is heavily based on reduced scale model tests coupled with numerical modelling. Most of the available model studies on geocell-reinforced structures use prototype geocells or geocells made using nonwoven geotextiles or geonets due to the unavailability of low strength geocells in the market. Such studies suffer from many limitations that arise due to discrepancies in geometric scaling, texture and mechanical response. Hence, 3D printing, which enables the manufacturing of geosynthetics with optimized configurations, customized texture and mechanical properties holds great promise in producing low strength geocells for reduced scale model tests. This study demonstrates the applicability of 3D printing technique for manufacturing customized geocells using polypropylene (PP) sheets. Wide-width tension tests, junction strength tests and interface shear tests were carried out on 3D printed geocells. Through these tests combined with PIV analysis, it is shown that the geocells fabricated by ultrasonically welding the 3D printed polypropylene sheets could closely replicate the tensile and interface shear behaviour of the commercial geocells. © The Author(s), under exclusive licence to Springer Nature Switzerland AG 2024.

Item Type:	Journal Article
Publication:	International Journal of Geosynthetics and Ground Engineering
Publisher:	Springer Science and Business Media Deutschland GmbH
Additional Information:	The copyright for this article belongs to Springer Science and Business Media Deutschland GmbH.
Keywords:	3D printing; Fabrication; Polypropylenes; Tensile testing, 3-D printing; 3D-printing; Geocells; Interface shear; Interface shear test; Junction test; Low-strength geocell; Polypropylene sheets; Shear tests; Tensile test, Textures
Department/Centre:	Division of Mechanical Sciences > Civil Engineering
Date Deposited:	29 May 2024 06:46
Last Modified:	29 May 2024 06:46
URI:	https://eprints.iisc.ac.in/id/eprint/85014

Actions (login required)

View Item