Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Kevin R. Hart"'
Publikováno v:
Progress in Additive Manufacturing. 4:233-243
Polymeric structures fabricated using fused filament fabrication (FFF) have limited use in engineering applications as a result of their poor inter-laminar bonding. In this study, we utilize a dual-material print head to encase a low glass transition
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c8cd8ec3a23dbcab7a583d328ba79dee
https://doi.org/10.1007/s40964-019-00081-x
https://doi.org/10.1007/s40964-019-00081-x
Autor:
Ryan M. Dunn, Jennifer M. Sietins, Michael E. Mackay, Clara M. Hofmeister Mock, Eric D. Wetzel, Kevin R. Hart
Publikováno v:
Polymer. 144:192-204
Polymeric structures fabricated using Fused Filament Fabrication (FFF) suffer from poor inter-laminar fracture toughness. As a result, these materials exhibit only a fraction of the mechanical performance of those manufactured through more traditiona
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::baf5c021ccdd866747030adca0553a8d
https://doi.org/10.1016/j.polymer.2018.04.024
https://doi.org/10.1016/j.polymer.2018.04.024
Publikováno v:
Additive Manufacturing. 21:536-543
Millions of Meals Ready to Eat (MREs) are consumed annually by soldiers around the world. This results in the generation of thousands of tons of residual polymeric packaging waste, which is either left behind in the environment or otherwise recycled
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::95737e27897aff24bea448189231fec5
https://doi.org/10.1016/j.addma.2018.04.011
https://doi.org/10.1016/j.addma.2018.04.011
Autor:
Kevin R. Hart, Lawrence E. Sheridan, Eric D. Wetzel, Patrick X.L. Chia, Scott R. White, Nancy R. Sottos
Publikováno v:
Composites Part A: Applied Science and Manufacturing. 101:471-479
Post-impact mechanical response of 2D and 3D woven glass/epoxy composite plates and beams of equivalent areal density are evaluated using both Compression-After-Impact (CAI) and Flexure-After-Impact (FAI) testing protocols. Residual strength and stif
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2c761c0b9fb07250f752f4eacb1b4965
https://doi.org/10.1016/j.compositesa.2017.07.005
https://doi.org/10.1016/j.compositesa.2017.07.005
Autor:
Scott R. White, Brett P. Krull, Nancy R. Sottos, Seth M. Lankford, Eric D. Wetzel, Jason F. Patrick, Isaac A. Freund, Kevin R. Hart
Publikováno v:
Composites Science and Technology. 151:1-9
Recurrent self-healing of fracture damage in fiber-reinforced composites was accomplished by incorporating internal vascular networks for repeated delivery of reactive liquid components to an internal delamination. Double cantilever beam specimens co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::240379bb6c9d2c1ba518a4d8c3d79fa8
https://doi.org/10.1016/j.compscitech.2017.07.027
https://doi.org/10.1016/j.compscitech.2017.07.027
Autor:
Patrick X.L. Chia, Nancy R. Sottos, Scott R. White, Kevin R. Hart, Lawrence E. Sheridan, Eric D. Wetzel
Publikováno v:
Composites Part A: Applied Science and Manufacturing. 101:432-443
Low velocity impact damage of 2D and 3D woven glass/epoxy composites with the same areal density and material constituents were examined. Characterization of damage for both plate and beam sample geometries was investigated through the collection of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::43dabd46e821271f215f29bbe652f60c
https://doi.org/10.1016/j.compositesa.2017.07.004
https://doi.org/10.1016/j.compositesa.2017.07.004
Autor:
Eric D. Wetzel, Kevin R. Hart
Publikováno v:
Engineering Fracture Mechanics. 177:1-13
The effect of layer orientation on the fracture properties of poly(acrylonitrile-butadienestyrene) (ABS) materials fabricated through the fused filament fabrication (FFF) process was explored. Critical elastic-plastic strain energy release rates of s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3521e2e9ae908127481dcf4fc59dff4e
https://doi.org/10.1016/j.engfracmech.2017.03.028
https://doi.org/10.1016/j.engfracmech.2017.03.028
Autor:
Tae Ann Kim, Aaron J. Hsu, Yanfeng Zhang, Yuxiao Wu, Nancy R. Sottos, Jianjun Cheng, Hanze Ying, Coppola Anthony M, Ke Yang, Scott R. White, Kevin R. Hart
Publikováno v:
Advanced Materials. 28:7646-7651
Poly(urea-urethane) thermosets containing the 1-tert-butylethylurea (TBEU) structure feature a reversible dissociation/association process of their covalent linkages under mild conditions. Unlike conventional thermosets, TBEU-based poly(urea-urethane
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fe1ffbbbc1c2e72102ae21832bbb81d5
https://doi.org/10.1002/adma.201601242
https://doi.org/10.1002/adma.201601242
Publikováno v:
Experimental Techniques. 40:937-945
An automatic crack tracking scheme is developed for measuring the tensile opening (mode I) interlaminar fracture toughness (GIc) of continuous glass fiber-reinforced composite materials. The technique is directly compared to ASTM standard D5528, whic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3c9f766dd5f68e520d5a6fb19dce56a2
https://doi.org/10.1007/s40799-016-0094-9
https://doi.org/10.1007/s40799-016-0094-9
Publikováno v:
Polymer. 211:123091
Polymeric components manufactured via freeform fabrication (FFF) typically have poor inter-laminar toughness resulting from incomplete bonding across layers during production. Here we study the effect of printing and post-processing on the inter-lami
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1f02f68c74137f5d5edcd0e8d73047ac
https://doi.org/10.1016/j.polymer.2020.123091
https://doi.org/10.1016/j.polymer.2020.123091