2019 International Solid Freeform Fabrication Symposium: Recent submissions
Now showing items 1-20 of 197
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Additive Manufactured Lightweight Vehicle Door Hinge with Hybrid Lattice Structure
(University of Texas at Austin, 2019) -
Investigating the Production of Gradient Index Optics by Modulating Two-Photon Polymerisation Fabrication Parameters
(University of Texas at Austin, 2019)Two-photon polymerisation (TPP) is an additive manufacturing technique allowing the fabrication of arbitrary 3D geometries with sub-micron features. As such, TPP is a promising technique for fabricating optical metamaterials. ... -
Design, Modeling and Characterization on Triply Periodic Minimal Surface Heat Exchangers with Additive Manufacturing
(University of Texas at Austin, 2019)Next-generation power plants will generate heated fluids at significantly higher temperatures than current-generation power plants, which challenges the state-of-the-art heat exchanger design. In this study triply periodic ... -
Modelling for the Tensile Fracture Characteristic of Cellular Structures under Tensile Load with Size Effect
(University of Texas at Austin, 2019)In the unit cell-based design of cellular structures, an important issue is the effect of the cellular pattern size (i.e. the number of unit cell numbers along different orientations) on their mechanical properties. Among ... -
In-Plane Pure Shear Deformation of Cellular Materials with Novel Grip Design
(University of Texas at Austin, 2019)Cellular materials are popular due to their high specific strength, but their in-plane shear behavior is not well understood. Current experimental methods are limited due to the lack of pure shear loading as common ... -
Compressive Properties Optimization of a Bio-Inspired Lightweight Structure Fabricated via Selective Laser Melting
(University of Texas at Austin, 2019)Compressive properties optimization of a bio-inspired lightweight structure is developed by Response Surface Methodology (RSM) and Non-dominated Sorting Genetic Algorithm II (NSGA-II). Multi-layered bio-inspired structures ... -
Fast and Simple Printing of Graded Auxetic Structures
(University of Texas at Austin, 2019)One of the great promises of additive manufacturing is the ability to build parts with volumetrically graded parameters that would be difficult or impossible with traditional manufacturing. This paper presents a method ... -
Mechanical Behavior of Additively-Manufactured Gyroid Lattice Structure under Different Heat Treatments
(University of Texas at Austin, 2019)Gyroid lattice structures, known for high stiffness and specific strength, are gaining attention for their energy absorption ability. However, energy absorption and strength of the gyroids are two desired properties, ... -
Effects of Unit Cell Size on the Mechanical Performance of Additive Manufactured Lattice Structures
(University of Texas at Austin, 2019)Lattice structures are generated through the repetition of smaller structures, defined as unit cells. These structures are popular alternatives for bone implants due to the potential to adjust the stiffness. However, in ... -
Permeability Analysis of Polymeric Porous Media Obtained by Material Extrusion Additive Manufacturing
(University of Texas at Austin, 2019)Porous media (PM) are used in many applications, and their geometry and hydraulic properties are essential in flow analysis, especially in geology (oil and gas) and medical (tissue engineering) applications. Additive ... -
Impact Energy Absorption Ability of Thermoplastic Polyurethane (TPU) Cellular Structures Fabricated via Powder Bed Fusion
(University of Texas at Austin, 2019)In this study, experimental based investigation was carried out with various cellular structure designs realized using a developmental thermoplastic polyurethane (TPU) fabricated by powder bed fusion process, in the ... -
Effective Elastic Properties of Additively Manufactured Metallic Lattice Structures: Unit-Cell Modeling
(University of Texas at Austin, 2019)Lattice structures are lightweight materials, which exhibit a unique combination of properties such as air and water permeability, energy and acoustic absorption, low thermal conductivity, and electrical insulation. In ... -
The Effect of Cell Size and Surface Roughness on the Compressive Properties of ABS Lattice Structures Fabricated by Fused Deposition Modeling
(University of Texas at Austin, 2019)Researchers looking to improve the surface roughness of acrylonitrile butadiene styrene (ABS) parts fabricated by fused deposition modeling (FDM) have determined that acetone smoothing not only achieves improved surface ... -
A Computational and Experimental Investigation into Mechanical Characterizations of Strut-Based Lattice Structures
(University of Texas at Austin, 2019)Strut-based lattices are widely used in structural components for reducing weight. Additive manufacturing has provided a unique opportunity to fabricate such complex geometries. In addition to the unit cell type, the ... -
Compressive Response of Strut-Reinforced Kagome with Polyurethane Reinforcement
(University of Texas at Austin, 2019)Lattice structures find immense application in lightweight structures for their high specific strength, modulus, and energy absorption. Strut-reinforced Kagome (SRK) structures provide better compressive performance ... -
Compressive and Bending Performance of Selectively Laser Melted AlSi10Mg Structures
(University of Texas at Austin, 2019)Selective laser melting (SLM) is a widely used additive manufacturing technique that effectively manufactures complex geometries such as cellular structures. However, challenges such as anisotropy and mechanical property ... -
Surface Roughness Characterization in Laser Powder Bed Fusion Additive Manufacturing
(University of Texas at Austin, 2019) -
Failure Detection of Fused Filament Fabrication via Deep Learning
(University of Texas at Austin, 2019)Additive Manufacturing (AM) is used in several fields and its utilization is growing sharply in almost every aspect of daily life. The focus of the current studies in the AM field is generally focused on the development ... -
Fatigue Performance of Additively Manufactured Stainless Steel 316L for Nuclear Applications
(University of Texas at Austin, 2019)Additive manufacturing (AM) is a rapidly growing technology which is extending its influence into many industrial sectors such as aerospace, automotive and marine. Recently the nuclear sector has considered AM in the ...
