Journal ArticleDOI
3D printing of shape memory polymer for functional part fabrication
TLDR
In this article, a novel method of shape memory polymer (SMP) processing for additive manufacturing, in particular, fused-deposition modeling (FDM), is presented, in which critical extrusion process parameters have been experimented to determine an appropriate set of parameter values so that good-quality SMP filament could be made for FDM.Abstract:
This article presents a novel method of shape memory polymer (SMP) processing for additive manufacturing, in particular, fused-deposition modeling (FDM). Critical extrusion process parameters have been experimented to determine an appropriate set of parameter values so that good-quality SMP filament could be made for FDM. In the FDM process, effects of different printing parameters such as extruder temperature and scanning speed on object printing quality are also studied. In all the process studies, we aim to achieve good-quality parts by evaluating part density, tensile strength, dimensional accuracy, and surface roughness. Based on these studies, sample SMP models have been successfully built. Due to the thermal sensitive nature of the printed SMP parts, they can potentially be used as fasteners in active assembly/disassembly, smart actuators, deployable structures for aero-space applications, etc.read more
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An overview on 3D printing technology: Technological, materials, and applications
TL;DR: In this paper, the authors present an overview of the types of 3D printing technologies, the application of three-dimensional printing technology and lastly, the materials used for 3-D printing technology in manufacturing industry.
Journal ArticleDOI
Direct 4D printing via active composite materials
TL;DR: The markedly simplified creation of high-resolution complex 3D reprogrammable structures promises to enable myriad applications across domains, including medical technology, aerospace, and consumer products, and even suggests a new paradigm in product design, where components are simultaneously designed to inhabit multiple configurations during service.
Journal ArticleDOI
Direct-Write Fabrication of 4D Active Shape-Changing Structures Based on a Shape Memory Polymer and Its Nanocomposite
TL;DR: This research realizes the printing of both SMPs and SMNCs, which present an effective strategy to design 4D active shape-changing architectures with multifunctional properties, which paves the way for the further development of 4D printing, soft robotics, flexible electronics, minimally invasive medicine, etc.
Journal ArticleDOI
Additive manufacturing — A review of 4D printing and future applications
TL;DR: A review of the current materials available for 3D printing that enable the emergence of 4D printing, a "smart material" that responds in a programmed way to an external stimuli can be found in this paper.
Journal ArticleDOI
Experimental characterization of the mechanical properties of 3D-printed ABS and polycarbonate parts
Jason T. Cantrell,Sean Rohde,David Damiani,Rishi Gurnani,Luke DiSandro,Josh Anton,Andie Young,Alex Jerez,Douglas Steinbach,Calvin Kroese,Peter Ifju +10 more
TL;DR: In this article, the authors present the methodology and results of the mechanical characterization of acrylonitrile butadiene styrene (ABS) and polycarbonate (PC) 3D printed parts to determine the extent of anisotropy present in 3-D printed materials.
References
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Journal ArticleDOI
Review of progress in shape-memory polymers
TL;DR: It is discussed how the described shape-memory polymers show great potential for diverse applications, including in the medical arena, sensors, and actuators, and as dictated by macromolecular details.
Journal ArticleDOI
Shape-memory polymers and their composites: Stimulus methods and applications
TL;DR: Shape-memory polymers (SMPs) undergo significant macroscopic deformation upon the application of an external stimulus (e.g., heat, electricity, light, magnetism, moisture and even a change in pH value).
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Recent advances in shape–memory polymers: Structure, mechanism, functionality, modeling and applications
TL;DR: In this paper, a comprehensive review of shape-memory polymers (SMPs) and their derivatives, such as composites and compound structures, as well as their current applications are presented.
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Additive manufacturing methods and modelling approaches: a critical review
TL;DR: In this article, the authors map available additive manufacturing methods based on their process mechanisms, review modelling approaches based on modelling methods and identify research gaps and implications for closed-loop control of the process.
Journal ArticleDOI
Shape memory polymers and their composites in aerospace applications: a review
TL;DR: In this paper, shape memory polymers and their composites (SMPs and SMPCs) can respond to specific external stimulus and remember the original shape, and the stimulus methods are discussed to demonstrate the shape recovery effect.