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Showing 1 to 10 of 10 entries
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Highly ordered uniform single-crystal Bi nanowires: fabrication and characterization.

Nanotechnology

Bisrat Y, Luo ZP, Davis D, Lagoudas D.
PMID: 21730421
Nanotechnology. 2007 Oct 03;18(39):395601. doi: 10.1088/0957-4484/18/39/395601. Epub 2007 Sep 04.

A mechanical pressure injection technique has been used to fabricate uniform bismuth (Bi) nanowires in the pores of an anodic aluminum oxide (AAO) template. The AAO template was prepared from general purity aluminum by a two-step anodization followed by...

Characterizing and modeling the free recovery and constrained recovery behavior of a polyurethane shape memory polymer.

Smart materials & structures

Volk BL, Lagoudas DC, Maitland DJ.
PMID: 22003272
Smart Mater Struct. 2011 Sep;20(9):940041-9400418. doi: 10.1088/0964-1726/20/9/094004.

In this work, tensile tests and one-dimensional constitutive modeling are performed on a high recovery force polyurethane shape memory polymer that is being considered for biomedical applications. The tensile tests investigate the free recovery (zero load) response as well...

Energy dissipation due to interfacial slip in nanocomposites reinforced with aligned carbon nanotubes.

ACS applied materials & interfaces

Gardea F, Glaz B, Riddick J, Lagoudas DC, Naraghi M.
PMID: 25905718
ACS Appl Mater Interfaces. 2015 May 13;7(18):9725-35. doi: 10.1021/acsami.5b01459. Epub 2015 May 04.

Interfacial slip mechanisms of strain energy dissipation and vibration damping of highly aligned carbon nanotube (CNT) reinforced polymer composites were studied through experimentation and complementary micromechanics modeling. Experimentally, we have developed CNT-polystyrene (PS) composites with a high degree of...

Design and simulation of origami structures with smooth folds.

Proceedings. Mathematical, physical, and engineering sciences

Peraza Hernandez EA, Hartl DJ, Lagoudas DC.
PMID: 28484322
Proc Math Phys Eng Sci. 2017 Apr;473(2200):20160716. doi: 10.1098/rspa.2016.0716. Epub 2017 Apr 26.

Origami has enabled new approaches to the fabrication and functionality of multiple structures. Current methods for origami design are restricted to the idealization of folds as creases of zeroth-order geometric continuity. Such an idealization is not proper for origami...

Branched aramid nanofiber-polyaniline electrodes for structural energy storage.

Nanoscale

Flouda P, Quinn AH, Patel AG, Loufakis D, Lagoudas DC, Lutkenhaus JL.
PMID: 32760998
Nanoscale. 2020 Aug 20;12(32):16840-16850. doi: 10.1039/d0nr04573j.

Strong electrodes with good energy storage capabilities are necessary to accommodate the current needs for structural and flexible electronics. To this end, conjugated polymers such as polyaniline (PANI) have attracted much attention due to their exceptional energy storage performance....

Identification of energy dissipation mechanisms in CNT-reinforced nanocomposites.

Nanotechnology

Gardea F, Glaz B, Riddick J, Lagoudas DC, Naraghi M.
PMID: 26866611
Nanotechnology. 2016 Mar 11;27(10):105707. doi: 10.1088/0957-4484/27/10/105707. Epub 2016 Feb 11.

In this paper we present our recent findings on the mechanisms of energy dissipation in polymer-based nanocomposites obtained through experimental investigations. The matrix of the nanocomposite was polystyrene (PS) which was reinforced with carbon nanotubes (CNTs). To study the...

Constitutive modelling of magnetic shape memory alloys with discrete and continuous symmetries.

Proceedings. Mathematical, physical, and engineering sciences

Haldar K, Lagoudas DC.
PMID: 25197247
Proc Math Phys Eng Sci. 2014 Sep 08;470(2169):20140216. doi: 10.1098/rspa.2014.0216.

A free energy-based constitutive formulation is considered for magnetic shape memory alloys. Internal state variables are introduced whose evolution describes the transition from reference state to the deformed and transformed one. We impose material symmetry restrictions on the Gibbs...

Lie symmetry and conservation laws for magneto-static magnetic shape memory alloys system.

Proceedings. Mathematical, physical, and engineering sciences

Haldar K, Lagoudas DC.
PMID: 32922153
Proc Math Phys Eng Sci. 2020 Aug;476(2240):20200168. doi: 10.1098/rspa.2020.0168. Epub 2020 Aug 05.

Magnetic shape memory alloys (MSMAs) have drawn significant research attention as potential high actuation energy multi-functional materials. Such a dissipative material system can be considered as a solid continuum interacting with a magnetic field. A continuum-based phenomenological model provides...

Structural Lithium-Ion Battery Cathodes and Anodes Based on Branched Aramid Nanofibers.

ACS applied materials & interfaces

Flouda P, Oka S, Loufakis D, Lagoudas DC, Lutkenhaus JL.
PMID: 34256563
ACS Appl Mater Interfaces. 2021 Jul 28;13(29):34807-34817. doi: 10.1021/acsami.1c06413. Epub 2021 Jul 14.

Structural batteries and supercapacitors combine energy storage and structural functionalities in a single unit, leading to lighter and more efficient electric vehicles. However, conventional electrodes for batteries and supercapacitors are optimized for high energy storage and suffer from poor...

Assessing impact of engineering projects in community service on engineering freshmen enrolled in pre-calculus.

Lagoudas MZ, Shryock KJ.
UIID-AD: 4225
2016;

This work-in-progress describes a novel approach to support freshman engineering students entering college with low math competencies in pre-calculus. Institutions across the nation are making significant efforts to develop K-12 programs and summer camps to recruit more ethnic minorities...

Showing 1 to 10 of 10 entries