Effect of Strain Rate on Tensile Testing of Geogrid Reinforcements Using Single‐Rib and Wide‐Rib Specimen

Hegazy, R.; Mahmoud, Gouda M.; Hasan, Ebtisam H.

doi:10.1002/adv.21778

Cited by 3 publications

(2 citation statements)

References 6 publications

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“…The strain rate effect on the tensile behavior of geogrids was also studied [ 57 ], in which tests have been conducted according to ISO 10319 standard [ 58 ] considering both single rib and wide-rib specimens at six different strain rates. The study’s objective was to develop a valid method for single rib testing that can be closely matched with the wide-rib test without the need to conduct the wide-width test.…”

Section: Physical and Geometric Characteristicsmentioning

confidence: 99%

Polymer Geogrids: A Review of Material, Design and Structure Relationships

Al-Barqawi

Aqel

Wayne³

et al. 2021

Materials

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Geogrids are a class of geosynthetic materials made of polymer materials with widespread transportation, infrastructure, and structural applications. Geogrids are now routinely used in soil stabilization applications ranging from reinforcing walls to soil reinforcement below grade or embankments with increased potential for remote-sensing applications. Developments in manufacturing procedures have allowed new geogrid designs to be fabricated in various forms of uniaxial, biaxial, and triaxial configurations. The design flexibility allows deployments based on the load-carrying capacity desired, where biaxial geogrids may be incorporated when loads are applied in both the principal directions. On the other hand, uniaxial geogrids provide higher strength in one direction and are used for mechanically stabilized earth walls. More recently, triaxial geogrids that offer a more quasi-isotropic load capacity in multiple directions have been proposed for base course reinforcement. The variety of structures, polymers, and the geometry of the geogrid materials provide engineers and designers many options for new applications. Still, they also create complexity in terms of selection, characterization, and long-term durability. In this review, advances and current understanding of geogrid materials and their applications to date are presented. A critical analysis of the various geogrid systems, their physical and chemical characteristics are presented with an eye on how these properties impact the short- and long-term properties. The review investigates the approaches to mechanical behavior characterization and how computational methods have been more recently applied to advance our understanding of how these materials perform in the field. Finally, recent applications are presented for remote sensing sub-grade conditions and incorporation of geogrids in composite materials.

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Section: Physical and Geometric Characteristicsmentioning

confidence: 99%

Polymer Geogrids: A Review of Material, Design and Structure Relationships

Al-Barqawi

Aqel

Wayne³

et al. 2021

Materials

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“…Balakrishnan and Viswanadham 21 found that the tensile load-strain behaviour of geogrids improved, and their tensile stiffness increased by a maximum of 2.42 times after tensile tests on geogrids inside the soil. Hegazy et al 22 analyzed the difference in tensile properties of single-rib and multi-rib geogrids at different tensile rates through geogrid tensile tests. Chantachot et al 23 evaluated the effect of ambient temperature on the load-strain-time behavior of geogrids using tensile tests.…”

Section: Introductionmentioning

confidence: 99%

Analysis of tensile properties of geogrids for different morphology parameters

Gao

Zhu

2023

Journal of Thermoplastic Composite Materials

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Following the emergence of new morphology geogrids, tensile tests on some of the new morphology geogrids were conducted in this paper for practical engineering options. The study focuses on the tensile testing of 3D printed geogrids to analyze the effects of morphology differences (material, planar structure, filling rate, rib width and rib height) on the tensile properties of geogrids. The test results show that the tensile properties of high density polyethylene geogrids are stronger than those of polylactic acid geogrids. Increasing the filling rate of geogrid can increase the tensile performance while decreasing the rate of tensile performance improvement. In contrast to the elongation at the break of the geogrid, the maximum tensile strength and the maximum tensile modulus increase in the order of bidirectional, triaxial and quadaxial geogrids. When the rib width and the rib height increase by the same amount, the rib height increases the maximum tensile strength of the geogrid more than that of the rib width.

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