Longitudinal and transverse strain sensitivity of nichrome films

1990 ◽  
Vol 7 (1-2) ◽  
pp. L1-L4 ◽  
Author(s):  
M.A. Angadi ◽  
R. Whiting
Keyword(s):  
Transverse Strain ◽  
Strain Sensitivity

scholarly journals Granular metal–carbon nanocomposites as piezoresistive sensor films – Part 2: Modeling longitudinal and transverse strain sensitivity

2018 ◽  
Vol 7 (1) ◽  
pp. 69-78 ◽  
Author(s):  
Silvan Schwebke ◽  
Ulf Werner ◽  
Günter Schultes
Keyword(s):  
Electron Transport ◽  
Large Strain ◽  
Local Strain ◽  
Carbon Matrix ◽  
Morphological Characterization ◽  
Transverse Strain ◽  
Strain Sensitivity ◽  
Sensor Material ◽  
Piezoresistive Sensor ◽  
Disordered Films

Abstract. Granular and columnar nickel–carbon composites may exhibit large strain sensitivity, which makes them an interesting sensor material. Based on experimental results and morphological characterization of the material, we develop a model of the electron transport in the film and use it to explain its piezoresistive effect. First we describe a model for the electron transport from particle to particle. The model is then applied in Monte Carlo simulations of the resistance and strain properties of the disordered films that give a first explanation of film properties. The simulations give insights into the origin of the transverse sensitivity and show the influence of various parameters such as particle separation and geometric disorder. An important influence towards larger strain sensitivity is local strain enhancement due to different elastic moduli of metal particles and carbon matrix.

Longitudinal and transverse strain sensitivity of embedded carbon fibre sensors

2012 ◽  
Vol 47 (2) ◽  
pp. 155-167 ◽  
Author(s):  
Christian Christner ◽  
Alexander Horoschenkoff ◽  
Helmut Rapp
Keyword(s):  
Carbon Fibre ◽  
Transverse Strain ◽  
Strain Sensitivity
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