Study on the interfacial properties of bi-material structures manufactured by injection molding after compression

Wei, Junlei; Sun, Lingyu; Pan, Wenfeng

doi:10.1016/j.compstruct.2023.116740

Cited by 4 publications

(2 citation statements)

References 29 publications

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“…The dynamic shear modulus is determined using the first torsional resonant frequency using Equation (3).…”

Section: Methodsmentioning

confidence: 99%

“…A complete understanding of the material properties can help ensure that the manufacturing process is efficient and effective and produces high-quality products. This is especially important, among others, for sheet forming [ 1 ], powder forming [ 2 ], and injection molding [ 3 ]. Furthermore, in quality control: material properties are used to measure and verify the quality of materials used in products.…”

Section: Introductionmentioning

confidence: 99%

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Verification of Mechanical Properties Identification Based on Impulse Excitation Technique and Mobile Device Measurements

Ścisło

2023

Sensors

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The Impulse Excitation Technique (IET) is one of the most useful testing methods for evaluating or calculating some material properties. This can be useful to evaluate and confirm that the material ordered is what was delivered. In the case of unknown materials, where their properties are required by simulation software, this is also a quick way to obtain mechanical properties and thus improve the simulation quality. The main drawback of the method is the requirement for a specialized sensor and acquisition system and a well-trained engineer to prepare the setup and analyze the results. The article evaluates the possibility of using a low-cost solution in the form of a mobile device microphone as a way to obtain data, which after the Fast Fourier Transform (FFT), allows to obtain frequency response graphs and use the IET method procedure to calculate the mechanical properties of the samples. The data obtained by the mobile device are compared with the data obtained by professional sensors and data acquisition systems. The results confirm that for typical homogenous materials, the mobile phone is a cheap and reliable alternative for fast, on-the-go material quality inspections and can be introduced even in small companies and on construction sites. Additionally, this kind of approach does not require specific knowledge of sensing technology, signal treatment, or data analysis and can be performed by any assigned employee, who can receive the quality check information immediately on-site. Additionally, the presented procedure allows data collection and transfer to the cloud for future references and additional information extraction. This element is fundamental for introducing sensing technologies under the Industry 4.0 concept.

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“…The dynamic shear modulus is determined using the first torsional resonant frequency using Equation (3).…”

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Verification of Mechanical Properties Identification Based on Impulse Excitation Technique and Mobile Device Measurements

Ścisło

2023

Sensors

View full text Add to dashboard Cite

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The effects of temperature and hygrothermal aging on the properties of CF/PA6 composite and its compression failure mechanisms

Yu,

Xiao,

Xie

et al. 2024

Polymer Composites

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Carbon fiber reinforced polyamide composites have outstanding properties, but their applications are significantly affected by the service environment. This work evaluates the effects of temperature (25, 80, 140, and 200°C) and hygrothermal conditions on the mechanical properties of CF/PA6 composite containing delamination damage, and studies its damage behaviors and failure mechanisms. After hygrothermal aging, recrystallization of PA6 improves the heat resistance of CF/PA6 composites, but water absorption reduces the interfacial strength of composites, resulting in the decrease of modulus and compressive strength (24% and 42%, respectively). With the increase in temperature, the compressive strength of CF/PA6 composites gradually decreases (from 132 MPa at 25°C to 24 MPa at 200°C), and the failure mode transitions from fiber fractures, interlayer shear fractures, delamination to kinking. In addition, the compressive failure process of CF/PA6 composites is divided into three stages: buckling, delamination bulging and kinking failure.Highlights Hygrothermal aging reduces the fiber/resin interface performance. Fiber fracture, interlayer shear and delamination convert to kinking failure. The failure process is divided into buckling, delamination and kinking.

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Mesoscale failure analysis of the hybrid structure by injection overmolding after compression process

Wei

Sun

et al. 2023

Engineering Failure Analysis

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Study on the interfacial properties of bi-material structures manufactured by injection molding after compression

Cited by 4 publications

References 29 publications

Verification of Mechanical Properties Identification Based on Impulse Excitation Technique and Mobile Device Measurements

Verification of Mechanical Properties Identification Based on Impulse Excitation Technique and Mobile Device Measurements

The effects of temperature and hygrothermal aging on the properties of CF/PA6 composite and its compression failure mechanisms

Mesoscale failure analysis of the hybrid structure by injection overmolding after compression process

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