Leaky Bulge Testing Device for the Characterization of Electrospun Mats

2020 ◽  
Author(s):  
Temitope Aminu
Keyword(s):  
Testing Device ◽  
Bulge Testing

Extracting the Elastic Modulus of Compliant Materials Using a Novel Plate Bulge Testing Technique

2008 ◽  
Author(s):  
S. Golan ◽  
D. Elata ◽  
U. Dinnar
Keyword(s):  
Elastic Modulus ◽  
Plate Theory ◽  
Biological Tissues ◽  
Bulge Test ◽  
The Novel ◽  
Membrane Mechanics ◽  
Testing Technique ◽  
Bulge Testing ◽  
Novel Method

The mechanical properties of compliant materials such as biological tissues and biocompatible soft polymers are essential in medical research and engineering applications. These properties are often determined using techniques that require costly instrumentation (e.g. pull test machines). Alternative and more accessible methods can significantly aid the characterization process. The bulge test determines a material elastic modulus by analyzing the pressure-deflection response of thin samples made of this material. The technique has been extensively employed in the characterization of metals and semiconductors (modulus ∼ 100 GPa). By employing plate rather than membrane mechanics, the present study extends bulge testing to characterize materials with a modulus that is five orders of magnitude lower (∼ 1 MPa). The novel method is demonstrated analytically using plate theory, numerically using finite element modeling and experimentally by successfully applying it to polydimethylsiloxane (modulus ∼ 1.33 MPa). The introduced technique does not require costly equipment, is simple to implement and presents an appealing alternative to current characterization approaches.

Mechanical Characterization of Polymer Nanowires Using MEMS

2006 ◽  
Author(s):  
B. A. Samuel ◽  
Bo Yi ◽  
R. Rajagopalan ◽  
H. C. Foley ◽  
M. A. Haque
Keyword(s):  
Mechanical Properties ◽  
Tensile Testing ◽  
Furfuryl Alcohol ◽  
Mechanical Characterization ◽  
Uniaxial Tensile ◽  
Testing Device ◽  
Uniaxial Tensile Testing ◽  
Polymer Nanowires

We present results on the mechanical properties of single freestanding poly-furfuryl alcohol (PFA) nanowires (aspect ratio > 50, diameters 100–300 nm) from experiments conducted using a MEMS-based uniaxial tensile testing device in-situ inside the SEM. The specimens tested were pyrolyzed PFA nanowires (pyrolyzed at 800° C).

A Testing Device for the Mechanical Characterization of Wood Beams or Plates Under Bending Compression

1998 ◽  
Vol 26 (6) ◽  
pp. 582
Author(s):  
DR Petersen ◽  
RE Link ◽  
G Mussot-Hoinard ◽  
G Ferron
Keyword(s):  
Mechanical Characterization ◽  
Testing Device ◽  
Wood Beams

scholarly journals Control System for a Tensile-Testing Device Using Low-Cost Hardware and Open-Source Software

2020 ◽  
Vol 66 (3) ◽  
pp. 155-163 ◽  
Author(s):  
Matej Kranjec ◽  
Jernej Korinšek ◽  
Miha Ambrož ◽  
Robert Kunc
Keyword(s):  
Control System ◽  
Tensile Testing ◽  
Soft Tissues ◽  
Low Cost ◽  
Raspberry Pi ◽  
Material Research ◽  
Testing Device ◽  
Controlling System ◽  
Comparison Of The Results

The aim of this study is to verify whether a Raspberry Pi 3 B+ can be utilized as a low-cost device for controlling a tensile-testing device used for material research purposes. A list of requirements based on already-available hardware was drawn up, which the new control system had to fulfil. To connect all the necessary equipment, a connection board was constructed, and some additional hardware was acquired for the system to be able to perform all the necessary tasks. The whole controlling system was also put in a small enclosure to make it portable. The control-system software was written in C++ using the Pigpio library. The developed system was then tested, and the results were compared to a commercially available Instron 8802 device. A comparison of the results shows that the upgraded equipment can produce comparable results to commercially available devices and is sufficiently accurate to be applied for research purposes for the characterization of soft tissues and other materials.

Preparation, Characterization of Low Infrared Emissivity Stealth Coating

2013 ◽  
Vol 634-638 ◽  
pp. 2502-2505 ◽  
Author(s):  
Xiao Meng Lv ◽  
Xiao Li Gou ◽  
Huan Chun Wang ◽  
Xiang Xuan Liu
Keyword(s):  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
Surface Temperature ◽  
Influencing Factors ◽  
Testing Device ◽  
Infrared Emissivity ◽  
Coating Surface ◽  
Infrared Spectrometer ◽  
Scanning Electron

Ni-P modified hollow cenosphere was used to prepare infrared stealth coating. Infrared Spectrometer, Scanning Electron Microscope, Infrared Emissivity Testing Device are used to study the performance of the infrared stealth coating. Influencing factors of infrared emissivity of coating are analyzed comprehensively. The lowest emissivity of infrared stealth coating in 8-14um wavebands is 0.63 and the ability of controlling the coating surface temperature is raised.

Deformation Characterization of Friction-Stir-Welded Tubes by Hydraulic Bulge Testing

JOM ◽  
2014 ◽  
Vol 66 (10) ◽  
pp. 2137-2144 ◽  
Author(s):  
Q. Pang ◽  
Z. L. Hu ◽  
X. Pan ◽  
X. Q. Zuo
Keyword(s):  
Friction Stir ◽  
Bulge Testing ◽  
Hydraulic Bulge
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