Results 51 to 60 of about 671,009 (191)
Effect of infill pattern and build orientation on mechanical properties of FDM printed parts: An experimental modal analysis approach [PDF]
arXiv, 2022 Fused Deposition Modeling (FDM) is one of the most widely explored additive manufacturing method that uses thermoplastic materials to manufacture products. Mechanical properties of parts manufactured using FDM are influenced by different process parameters involved during manufacturing as they impact the bonding among different layers of cross-section.
arxiv
Source illusion devices for flexural Lamb waves using elastic metasurfaces [PDF]
Phys. Rev. Lett. 119, 034301 (2017), 2016 Metamaterials with the transformation method has greatly promoted the development in achieving invisibility and illusion for various classical waves. However, the requirement of tailor-made bulk materials and extreme constitutive parameters associated to illusion designs hampers its further progress. Inspired by recent demonstrations of metasurfaces in
arxiv +1 more source
3D Printed Lightweight Composite Foams [PDF]
, 2020 The goal of this paper is to enable 3D printed lightweight composite foams by blending hollow glass micro balloons (GMB) with high density polyethylene (HDPE). To that end, lightweight feedstock for printing syntactic foam composites is developed. The blend for this is prepared by varying GMB content (20, 40, and 60 volume %) in HDPE for filament ...
arxiv +1 more source
Active Encoding of Flexural Wave with Non-Diffractive Talbot Effect [PDF]
arXiv, 2023 This study employs the theory of conformal transformation to devise a Mikaelian lens for flexural waves manipulation. We investigate the propagation patterns of flexural waves in the lens under scenarios of plane wave and point source incidence. Additionally, the study explores the Talbot effect generated by interference patterns of multiple sources ...
arxiv
The Journal of Qazvin University of Medical Sciences, 2016 Background: Composite is one of the restorative materials used for the posterior teeth. The strength of restorative material is important due to heavy loading on the posterior teeth.
M. Saffarpour +3 more
doaj
Polymer Testing, 2011 Abstract The aim of this work is to propose a new method for determining both the in-plane shear modulus and the in-plane shear strength of composite materials by using three-point flexure tests on [±45] angle-ply laminates. Symmetric and anti-symmetric configurations have been analysed by Classical Laminated Plate Theory.
Vargas Silva, Gustavo Adolfo +1 more
openaire +3 more sources
Flexure-based Environmental Compliance for High-speed Robotic Contact Tasks [PDF]
arXiv, 2022 The design of physical compliance -- its location, degree, and structure -- affects robot performance and robustness in contact-rich tasks. While compliance is often used in the robot's joints, flange, or end-effector, this paper proposes compliant structures in the environment, allowing safe and robust contact while keeping the higher motion control ...
arxiv
Cymatics for the cloaking of flexural vibrations in a structured plate [PDF]
Scientific Reports 6, Article number: 23929 (2016), 2015 We present a proof of concept design for a structured square cloak enclosing a void in an elastic lattice, subjected to flexural vibrations. In addition to the theoretical design, we fabricate and experimentally test an elastic invisibility cloak for flexural waves in a mechanical lattice.
arxiv +1 more source
Flexural Strength of Acrylic Resin Denture Bases Processed by Two Different Methods
Journal of Dental Research, Dental Clinics, Dental Prospects, 2014 Background and aims. The aim of this study was to compare flexural strength of specimens processed by conventional and injection-molding techniques. Materials and methods.
Jafar Gharechahi +3 more
doaj +1 more source
ESI, a new Keck Observatory echellette spectrograph and imager [PDF]
Publ.Astron.Soc.Pac.114:851-865,2002, 2002 The Echellette Spectrograph and Imager (ESI) is a multipurpose instrument which has been delivered by the Instrument Development Laboratory of Lick Observatory for use at the Cassegrain focus of the Keck II telescope. ESI saw first light on August 29, 1999.
arxiv +1 more source