Comments on “Identification of micro‐failure processes of <scp>HDPE</scp>‐henequen fiber composite material by using acoustic emission monitoring: Effect of fiber surface modification”

Rajaee, Pouya; Ghasemi, Faramarz Ashenai; Fasihi, Mohammad

doi:10.1002/pc.27470

Cited by 4 publications

(4 citation statements)

References 21 publications

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“…These properties are in line with the low values of w e and βw p for ABS. 27,45 In contrast, the compositions including SBS exhibit a rather uneven fracture surface, which suggests a ductile fracture. 39 Figure 8 shows that the rigid and brittle ABS matrix exhibits signs of plastic deformation when 15 wt% of SBS is added.…”

Section: Fractographymentioning

confidence: 99%

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An experimental investigation of the tensile, fracture and microstructural characteristics of ABS/SBS reinforced with HNTs

Kamalvand,

Ashenai Ghasemi,

Fasihi

et al. 2023

Polymer Composites

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Thermoplastic composites are broadly used in many industries. Excellent mechanical characteristics are frequently required to achieve the appropriate properties for the applications. Therefore, the objectives of this study were (1) presenting an in‐depth analysis of the effects of styrene butadiene styrene (SBS) and halloysite nanotubes (HNTs) on the tensile and fracture properties of the thermoplastic composites based on acrylonitrile butadiene styrene (ABS), and (2) examining the relationship between the microstructure of the thermoplastic composites and their mechanical behavior. For these purposes, HNTs were utilized with four levels (0, 1, 3, and 5 wt%) and SBS was used with two levels (15 and 30 wt%). The tensile strength and modulus were reduced by adding SBS to 30 wt%; however, the elongation at break was increased by 30%. Furthermore, tensile strength and modulus, and elongation at break were improved by increasing HNTs up to 3 wt%. The results indicated the elastic work (we) and plastic work (βwp) rose by 29% and 10%, respectively, when 30 wt% of SBS was added to ABS. Furthermore, we and βwp rose by the addition of HNTs up to 3 wt%. To examine fracture mechanisms, field emission scanning electron microscope (FESEM) images of the fracture surface of the essential work of fracture (EWF) specimens were taken. Several voids are present in the compounds containing SBS, activating the plastic deformation mechanism. Based on the optimization process, the best strength, stiffness, and toughness balance was attained for the compound consisting of 15 wt% SBS and 1 wt% HNTs.Highlights The effects of HNTs and SBS on the fracture properties of polymer composites. The addition of SBS increased we, βwp, and the elongation at break. HNTs had a positive effect on the tensile strength and modulus, we, and βwp. The important mechanisms include plastic deformation and cavitation.

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Section: Fractographymentioning

confidence: 99%

“…Additionally, the resistance to crack propagation is shown by the slope of this line, βw p . Some prerequisites are available for validating the EWF method as follows 27,28 :…”

Section: Introductionmentioning

confidence: 99%

An experimental investigation of the tensile, fracture and microstructural characteristics of ABS/SBS reinforced with HNTs

Kamalvand,

Ashenai Ghasemi,

Fasihi

et al. 2023

Polymer Composites

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“…41 In Figure 3, the DENT geometry is displayed. To apply the EWF method, certain conditions must be met, which were carried out for the standardization of the EWF method by the ESIS TC-4 committee as follows [42][43][44][45] :…”

Section: Ewf Theorymentioning

confidence: 99%

Effect of raster angle on the fracture properties of additively manufactured ABS via essential work of fracture

Rajaee,

Ashenai Ghasemi,

Sajjadi

et al. 2024

J of Applied Polymer Sci

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The increasing application of additive manufacturing (AM) technology across various sectors has sparked significant interest in characterizing 3D‐printed components. An essential aspect of achieving fracture‐resistant designs is gaining a comprehensive understanding of the fracture behavior exhibited by these components. While most studies have focused on linear‐elastic fracture mechanics (LEFM), there is a lack of comprehensive studies on the post‐yield fracture behavior (PYFM) of 3D‐printed components. As a result, this study aims to fill this gap by investigating the impact of raster angle, a critical parameter influencing fracture properties and often leading to premature failures, on the fracture properties of fused deposition modeling (FDM) 3D printed acrylonitrile butadiene styrene (ABS) using essential work of fracture (EWF). Outcomes showed that by changing lay‐ups from [90]5 to [0]5, the value of we or elastic work increased by nearly 306%. Further, the maximum and minimum values of the plastic work (βwp) were for [45/−45/45/−45/45] and [90]5 lay‐ups, in order. By changing lay‐ups from [90]5 to [45/−45/45/−45/45], the value of βwp increased by approximately 216%. In addition, the fractured surfaces of tested samples are also analyzed to provide insights into the dominant failure mechanisms for different raster angles.

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“…10 It allows nondestructive monitoring and identification of stress wave signals in composite materials from microscopic deformation stages to fracture processes. AE can monitor damage accumulation during deformation and failure, determine the failure mechanism, identify the damage location, effectively identify different damage modes such as fiber fracture, basal fiber peeling, and matrix cracking, 7,[11][12][13][14] and identify delamination extensions at early stages, 15,16 which in turn enables real-time evaluation of composite properties and states, and verify the material consistency without damaging the material. 15,[17][18][19][20][21][22][23][24][25] This is crucial for predicting the extent of damage to composites, especially building and structural materials, and helps to avoid risks in advance.…”

Section: Introductionmentioning

confidence: 99%

Acoustic emission characteristics of waste fiber‐reinforced recycled high‐density polyethylene composites under damage conditions

Xu,

Wang,

et al. 2023

Polymer Composites

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Acoustic emission (AE) technology provides a novel approach for studying the damage and fracture behavior of wood‐plastic composites (WPCs) during their application process. This method allows rapid and precise analysis of the mechanical properties of materials, which is a significant advancement for the emerging WPC industry. Hence, a blend of waste floor sanding powder (FSP) and rice husk (RH) reinforced recycled high‐density polyethylene (Re‐HDPE) was prepared by the extrusion method. The AE technique, scanning electron microscopy, and finite element method (FEM) were used to analyze the damage and fracture behavior of the composite materials under a three‐point bending test. The results indicated that the bearing capacity of RH/Re‐HDPE composites was slightly higher than that of FSP/Re‐HDPE composites. The AE technique can better illustrate the damage evolution and fracture process of composites and determine the damage degree and mode. Matrix cracking and deformation were more pronounced in the FSP/Re‐HDPE composites. Fiber breakage and delamination were more prominent in the RH/Re‐HDPE composites. In addition, repeated loading caused irreversible damage to the composite. The increase in temperature led to the attenuation of the AE signal and a decrease in matrix strength. However, when the temperature reached a certain point, the cumulative AE ringing count increased again because the higher temperature improved the fiber–matrix interface strength, which partially canceled out the negative effect. In addition, Abaqus was used for simulation analysis, and the running results coincided with the experimental value.Highlights RH/Re‐HDPE and FSP/Re‐HDPE are sustainability and low‐cost composites. AE can determine the degree and mode of damage of WPC at different temperatures. The AE curves of RH/Re‐HDPE and FSP/Re‐HDPE all pass through four stages. Heating reduced the matrix strength and improved the interface strength of WPC. The results of FEM were consistent with the experimental results.

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Comments on “Identification of micro‐failure processes of HDPE‐henequen fiber composite material by using acoustic emission monitoring: Effect of fiber surface modification”

Cited by 4 publications

References 21 publications

An experimental investigation of the tensile, fracture and microstructural characteristics of ABS/SBS reinforced with HNTs

An experimental investigation of the tensile, fracture and microstructural characteristics of ABS/SBS reinforced with HNTs

Effect of raster angle on the fracture properties of additively manufactured ABS via essential work of fracture

Acoustic emission characteristics of waste fiber‐reinforced recycled high‐density polyethylene composites under damage conditions

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