Self-Healing Mechanisms for 3D-Printed Polymeric Structures: From Lab to Reality

Almutairi, Mohammed Dukhi; Aria, Adrianus Indrat; Thakur, Vijay Kumar; Khan, Muhammad Atif

doi:10.3390/polym12071534

Cited by 44 publications

(27 citation statements)

References 107 publications

(239 reference statements)

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“…The principle of the research carried out is to understand the various things of a 3-dimensional printer from the user's point of view [13]. In addition, the benefits and constraints received by its users when producing real objects using these tools [14].…”

Section: Methodsmentioning

confidence: 99%

Utilization of Three Dimensional Printers as a Production Tool

Ramadhan¹,

Syarifuddin²,

Cahyaningrum³

et al. 2021

Advances in Social Science, Education and Humanities Research

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A 3D printer is a product resulting from the development of a product. As a product, a 3-dimensional printer has its value as an object with a function because with its function as a printing tool; the printer can produce an object in physical form. So that it can produce real objects as the output. By using a qualitative descriptive method, this research gets the result that all elements contained in a 3-dimensional printer can not only produce a real object that is following its initial function. In line with the method, this study aims to explain the function of a 3-dimensional printer, which can directly produce products. Other than that, 3 Dimensional printers are now present as tools that can make objects real. So that it has a positive impact on the creation of an object. 3-dimensional printers are still owned by limited circles, but indirectly it can influence potential users of these tools in the form of demands regarding knowledge in the process of making an object using a 3-dimensional printer.

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Section: Methodsmentioning

confidence: 99%

Utilization of Three Dimensional Printers as a Production Tool

Ramadhan¹,

Syarifuddin²,

Cahyaningrum³

et al. 2021

Advances in Social Science, Education and Humanities Research

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“…These structures can experience fatigue failure due to dynamic loads in a complex thermo-mechanical environment [10][11][12]. Compared with other materials [13][14][15][16][17], the crack propagation during fatigue is highly complicated for FDM polymeric structures because of the significant differences in its microstructure due to various printing parameters.…”

Section: Introductionmentioning

confidence: 99%

Modelling and Investigation of Crack Growth for 3D-Printed Acrylonitrile Butadiene Styrene (ABS) with Various Printing Parameters and Ambient Temperatures

Alshammari

Khan

2021

Polymers

Self Cite

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Three-dimensional (3D) printing is one of the significant industrial manufacturing methods in the modern era. Many materials are used for 3D printing; however, as the most used material in fused deposition modelling (FDM) technology, acrylonitrile butadiene styrene (ABS) offers good mechanical properties. It is perfect for making structures for industrial applications in complex environments. Three-dimensional printing parameters, including building orientation, layers thickness, and nozzle size, critically affect the crack growth in FDM structures under complex loads. Therefore, this paper used the dynamic bending vibration test to investigate their influence on fatigue crack growth (FCG) rate under dynamic loads and the Paris power law constant C and m. The paper proposed an analytical solution to determine the stress intensity factor (SIF) at the crack tip based on the measurement of structural dynamic response. The experimental results show that the lower ambient temperature, as well as increased nozzle size and layer thickness, provide a lower FCG rate. The printing orientation, which is the same as loading, also slows the crack growth. The linear regression between these parameters and Paris Law’s coefficient also proves the same conclusion.

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“…The study and design of Microstructured Periodic Materials (MPMs) with specific properties is currently one of the most promising areas in the research of new materials. Natural materials have served as an inspiration/basis for the design of new artificial materials (i.e., designed and produced by man, not available in nature) with high performance [ 1 , 2 ] and multifunctional responses [ 1 , 3 , 4 ]. MPMs are an area of special interest, as they allow great versatility in the design of materials with specific properties, by controlling the composition of the phases (i.e., materials) and the internal microstructure.…”

Section: Introductionmentioning

confidence: 99%

Design of Kinematic Connectors for Microstructured Materials Produced by Additive Manufacturing

et al. 2021

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The main characteristic of materials with a functional gradient is the progressive composition or the structure variation across its geometry. This results in the properties variation in one or more specific directions, according to the functional application requirements. Cellular structure flexibility in tailoring properties is employed frequently to design functionally-graded materials. Topology optimisation methods are powerful tools to functionally graded materials design with cellular structure geometry, although continuity between adjacent unit-cells in gradient directions remains a restriction. It is mandatory to attain a manufacturable part to guarantee the connectedness between adjoining microstructures, namely by ensuring that the solid regions on the microstructure’s borders i.e., kinematic connectors) match the neighboring cells that share the same boundary. This study assesses the kinematic connectors generated by imposing local density restrictions in the initial design domain (i.e., nucleation) between topologically optimised representative unit-cells. Several kinematic connector examples are presented for two representatives unit-cells topology optimised for maximum bulk and shear moduli with different volume fractions restrictions and graduated Young’s modulus. Experimental mechanical tests (compression) were performed, and comparison studies were carried out between experimental and numerical Young’s modulus. The results for the single maximum bulk for the mean values for experimental compressive Young’s modulus (Ex¯) with 60%Vf show a deviation of 9.15%. The single maximum shear for the experimental compressive Young’s modulus mean values (Ex¯) with 60%Vf, exhibit a deviation of 11.73%. For graded structures, the experimental mean values of compressive Young’s moduli (Ex¯), compared with predicted total Young’s moduli (ESe), show a deviation of 6.96 for the bulk graded structure. The main results show that the single type representative unit-cell experimental Young’s modulus with higher volume fraction presents a minor deviation compared with homogenized data. Both (i.e., bulk and shear moduli) graded microstructures show continuity between adjacent cells. The proposed method proved to be suitable for generating kinematic connections for the design of shear and bulk graduated microstructured materials.

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Self-Healing Mechanisms for 3D-Printed Polymeric Structures: From Lab to Reality

Cited by 44 publications

References 107 publications

Utilization of Three Dimensional Printers as a Production Tool

Utilization of Three Dimensional Printers as a Production Tool

Modelling and Investigation of Crack Growth for 3D-Printed Acrylonitrile Butadiene Styrene (ABS) with Various Printing Parameters and Ambient Temperatures

Design of Kinematic Connectors for Microstructured Materials Produced by Additive Manufacturing

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