Multi-Scale Study on Mechanical Property and Strength of New Green Sand (Poly Lactic Acid) as Replacement of Fine Aggregate in Concrete Mix

Patil, Arun Y.; Banapurmath, N. R.; Sumukh, E. P.; Chitawadagi, Manojkumar V.; Badruddin, Irfan Anjum; Kamangar, Sarfaraz

doi:10.3390/sym12111823

Cited by 15 publications

(6 citation statements)

References 19 publications

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“…This could be explained by the samples lack of porosity as the thickness of printing layer increased, which prevented any water absorption. In the case when a single layer remains in a molten condition and is bounded to a solid layer whilst solidifying, a bonding between the layers will be produced as a result of the interaction of molecules, and better bonding when the temperature is sufficient to increase the adhesion between the layers and prevent the formation of gaps between the layers [8,33].…”

Section: Water Resistance Resultsmentioning

confidence: 99%

Effect of 3D Printing Parameters on Hollow Vascular Networks for Self-Healing Concrete Using Recycled Materials

Hameed,

Othman,

Abdul-Hamead

2024

MMEP

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Self-healing concrete can repair and seal cracks, this study explores fused deposition modelling (FDM) for creating novel vascular networks and tubes using polylactic acid (PLA) as a material they are incorporated within the concrete beam to injection the healing agent. The problem addressed in the text is to understand how interaction different printing parameters on different layer thicknesses (0.10, 0.20, 0.30, 0.40, and 0.50) mm affect the mechanical properties of (PLA) samples produced through (FDM) with a 3D printer, which was investigated using standardized tests. The hardness and tensile strength were determined using the ASTM D2240 method and ASTM D638-10, while water absorption was assessed using the ISO 62 standard. The bending properties of the specimens were analyzed using the ASTM D790-10 three-point bending test. Tensile and flexural strength increased up to 72 MPa and 81 MPa respectively as layer thickness increased up to 0.4 this layer was chosen to print the hollow vascular network.

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Section: Water Resistance Resultsmentioning

confidence: 99%

Effect of 3D Printing Parameters on Hollow Vascular Networks for Self-Healing Concrete Using Recycled Materials

Hameed,

Othman,

Abdul-Hamead

2024

MMEP

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“…Increasing the dosage of GNP and h-BN from 0.5 to 0.6 wt % in the matrix shows a homogeneous distribution of the fillers throughout the entire substrate. The failure of a composite with a filler material combination results in brittle fracture, similar to a concrete control mix [ 31 ].…”

Section: Resultsmentioning

confidence: 99%

Experimental and Computational Study of Mechanical and Thermal Characteristics of h-BN and GNP Infused Polymer Composites for Elevated Temperature Applications

et al. 2022

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Polymer-based nanocomposites are being considered as replacements for conventional materials in medium to high-temperature applications. This article aims to discover the synergistic effects of reinforcements on the developed polymer-based nanocomposite. An epoxy-based polymer composite was manufactured by reinforcing graphene nanoplatelets (GNP) and h-boron nitride (h-BN) nanofillers. The composites were prepared by varying the reinforcements with the step of 0.1 from 0.1 to 0.6%. Ultrasonication was carried out to ensure the homogenous dispersion of reinforcements. Mechanical, thermal, functional, and scanning electron microscopy (SEM) analysis was carried out on the novel manufactured composites. The evaluation revealed that the polymer composite with GNP 0.2 by wt % has shown an increase in load-bearing capacity by 265% and flexural strength by 165% compared with the pristine form, and the polymer composite with GNP and h-BN 0.6 by wt % showed an increase in load-bearing capacity by 219% and flexural strength by 114% when compared with the pristine form. Furthermore, the evaluation showed that the novel prepared nanocomposite reinforced with GNP and h-BN withstands a higher temperature, around 340 °C, which is validated by thermogravimetric analysis (TGA) trials. The numerical simulation model is implemented to gather the synthesised nanocomposite’s best composition and mechanical properties. The minor error between the simulation and experimental data endorses the model’s validity. To demonstrate the industrial applicability of the presented material, a case study is proposed to predict the temperature range for compressor blades of gas turbine engines containing nanocomposite material as the substrate and graphene/h-BN as reinforcement particles.

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“…Figure 4 b,c shows the hybrid mesh used for CFD analysis and structural analysis. The advantage of hybrid mesh [ 38 , 39 , 40 ] is that it automatically decides the structured mesh [ 41 , 42 ] and unstructured mesh for the normal area and critical area, respectively.…”

Section: Static Structural Analysismentioning

confidence: 99%

An Experimental and Simulation Study of the Active Camber Morphing Concept on Airfoils Using Bio-Inspired Structures

Dharmdas,

Patil,

Baig

et al. 2023

Biomimetics

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Birds are capable of morphing their wings across different flight modes and speeds to improve their aerodynamic performance. In light of this, the study aims to investigate a more optimized solution compared to conventional structural wing designs. The design challenges faced by the aviation industry today require innovative techniques to improve flight efficiency and minimize environmental impact. This study focuses on the aeroelastic impact validation of wing trailing edge morphing, which undergoes significant structural changes to enhance performance as per mission requirements. The approach to design-concept, modeling, and construction described in this study is generalizable and requires lightweight and actively deformable structures. The objective of this work is to demonstrate the aerodynamic efficiency of an innovative structural design and trailing edge morphing concept compared to conventional wing-flap configurations. The analysis revealed that the maximum displacement at a 30-degree deflection is 47.45 mm, while the maximum stress is 21 MPa. Considering that the yield strength of ABS material is 41.14 MPa, this kerf morphing structure, with a safety factor of 2.5, can withstand both structural and aerodynamic loads. The analysis results of the flap and morph configurations showed a 27% efficiency improvement, which was confirmed through the convergence criteria in ANSYS CFX.

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Multi-Scale Study on Mechanical Property and Strength of New Green Sand (Poly Lactic Acid) as Replacement of Fine Aggregate in Concrete Mix

Cited by 15 publications

References 19 publications

Effect of 3D Printing Parameters on Hollow Vascular Networks for Self-Healing Concrete Using Recycled Materials

Effect of 3D Printing Parameters on Hollow Vascular Networks for Self-Healing Concrete Using Recycled Materials

Experimental and Computational Study of Mechanical and Thermal Characteristics of h-BN and GNP Infused Polymer Composites for Elevated Temperature Applications

An Experimental and Simulation Study of the Active Camber Morphing Concept on Airfoils Using Bio-Inspired Structures

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