Experimental investigation of interface behaviour between different types of sand and carbon fibre polymer

Namjoo, Amir Mostafa; Toufigh, Mohammad Mohsen; Toufigh, Vahid

doi:10.1080/19648189.2019.1626290

Cited by 15 publications

(7 citation statements)

References 41 publications

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“…Where Kb is the bulk modulus factor, and Kur is unloading-reloading modulus factor. The soil model parameters for Duncan and Chang constitutive model were calibrated and represented [21,22]. In Table 1 the parameters were derived based on calibration of the model prediction against triaxial and direct shear test results.…”

Section: Soilmentioning

confidence: 99%

Performance of Ground Anchored Walls Subjected to Dynamic and Pseudo-Static Loading

2021

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This study investigates the response of pre-stressed anchored excavation walls under dynamic and pseudo-static loadings. A finite difference numerical model was developed using FLAC2D, and the results were successfully validated against full-scale experimental data. Analyses were performed on 10, and 20-m-height stabilized excavated slopes with 60° to 90° of inclination angle with the horizon to represent an applicable variety of wall geometries. In dynamic analysis, the statically stabilized models were subjected to 0.2 to 0.6g of the dynamic peak acceleration to evaluate the effect of ground acceleration on their performance. Furthermore, pseudo-static analyses were performed on the statically stabilized models with pseudo-static coefficients ranging from 0.06 to 0.22. The results revealed that ground anchored slopes generally showed acceptable performances under dynamic loading, while higher axial forces were induced to ground anchors in higher and steeper models. Furthermore, comparing the results of dynamic and pseudo-static analyses showed a good agreement between the two methods' predictions in the mobilized axial force along the ground anchors. Pseudo-static coefficients were then proposed to replicate dynamic results, considering the slope geometry and dynamic load peak acceleration. The results revealed that higher and steeper stabilized slopes required higher values of pseudo-static coefficients to match the dynamic predictions successfully. The results indicate that pseudo-static coefficient tend to increase with the increase in dynamic load peak acceleration in any given model. Doi: 10.28991/cej-2021-03091703 Full Text: PDF

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Section: Soilmentioning

confidence: 99%

Performance of Ground Anchored Walls Subjected to Dynamic and Pseudo-Static Loading

2021

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“…Other synthetic (e.g., asphalt, glass, rubber, carbon fibers) and natural fibers (e.g., coir, banana, and oil palm empty fruit bunch fibers) have also been utilized as sand/clay reinforcement material. ( Ahmad et al, 2010 ; Mittal and Gill, 2018 ; Namjoo et al, 2019 ; Patel and Singh, 2019 ; Sridhar and Prathap Kumar, 2018 ; Xiao et al, 2019 ). Regarding the fiber-reinforced soil, fibers behave as tension-resisting elements in soil, thus improving soil peak strength and limiting the post-peak shear resistance losses ( Mandolini et al, 2019 ; Wang and Brennan, 2019 ).…”

Section: Introductionmentioning

confidence: 99%

Experimental study on the monotonic mechanical behavior of completely decomposed granite soil reinforced by disposable face-mask chips

Yin

Wang

et al. 2022

Journal of Cleaner Production

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“…But it depends on the material's surface friction, material composition, shear behaviour, and loading conditions. Though most of the literature studies concentrated on laboratory shear tests to determine interfacial friction of the material, only a few researchers like [16][17][18] focused on forensic studies to investigate surface roughness and its asperities. The experiments performed to estimate the effect of particle sizes on shear strength could establish a correlation between normalised surface roughness and critical-state interface friction angle.…”

Section: Introductionmentioning

confidence: 99%

Interfacial studies on different pile materials and their roughness characterisation using 3D optical profilometer

Sreelakshmi

Asha

Thejus

2021

Archit. Struct. Constr.

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Piles are slender members made of concrete, steel, aluminium or timber installed in the ground to transfer the loads to soils at some significant depth below the base of the structure. The material property of the pile influences load-deformation response, bearing capacity, surface roughness and interfacial shear behaviour. The current study aims at assessing interfacial friction through a series of laboratory studies using three different pile materials, viz. concrete, wood and aluminium with sand as infill material. The surface roughness of three pile materials is analysed using a three-dimensional optical profilometer. Among the three pile materials considered for the study, the abrasive action of infill on concrete is more evident due to granular particles' intrusion on the cracked concrete surface. Wood and aluminium specimens developed enhanced tangential and adhesive action after shearing action. The three-dimensional profilometer studies could capture the abrasive action and subsequent wear and tear of the pile material.

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Experimental investigation of interface behaviour between different types of sand and carbon fibre polymer

Cited by 15 publications

References 41 publications

Performance of Ground Anchored Walls Subjected to Dynamic and Pseudo-Static Loading

Performance of Ground Anchored Walls Subjected to Dynamic and Pseudo-Static Loading

Experimental study on the monotonic mechanical behavior of completely decomposed granite soil reinforced by disposable face-mask chips

Interfacial studies on different pile materials and their roughness characterisation using 3D optical profilometer

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