Effect of structural modification on electro-mechanical behaviour of piezoelectric material under applied stress: an experimental study

2021 ◽  
Vol 585 (1) ◽  
pp. 151-162
Author(s):  
Prateek Asthana ◽  
Gargi Khanna
Keyword(s):  
Experimental Study ◽  
Piezoelectric Material ◽  
Applied Stress ◽  
Mechanical Behaviour ◽  
Structural Modification

The tensile behaviour of biaxial and triaxial braided fabrics

2016 ◽  
Vol 47 (8) ◽  
pp. 2184-2204 ◽  
Author(s):  
Duchamp Boris ◽  
Legrand Xavier ◽  
Soulat Damien
Keyword(s):  
Mechanical Properties ◽  
Experimental Study ◽  
Mechanical Behaviour ◽  
Tensile Tests ◽  
Uniaxial Tensile ◽  
Tensile Behaviour ◽  
Linear Mass ◽  
Double Peak ◽  
Specific Behaviour ◽  
Braiding Angle

The tensile behaviour of braid reinforcement is classically described by the behaviour of composite elaborated from these reinforcements. Few studies concern the tensile behaviour of braided fabrics. In this paper biaxial and triaxial braids are manufactured on a braiding loom. The evolution of key parameters as linear mass and braiding angle in function of process parameters is presented. Braid reinforcements are characterized in uniaxial tensile. The mechanical behaviour is analysed and compared in function of the braiding angle, but also different kinds of braid are considered. A specific behaviour called “double-peak” is identified for triaxial braids which have a higher braiding angle. The evolution of the braiding angle measured during tensile tests gives a comprehension on the mechanical behaviour of dry braids. Associated with this experimental study, an analytical model is also proposed, to predict mechanical properties of braid reinforcements.

Experimental study on hardening characteristics and loading rate dependent mechanical behaviour of gypsum mixed sand

2020 ◽  
Vol 262 ◽  
pp. 119992 ◽  
Author(s):  
Zain Maqsood ◽  
Junichi Koseki ◽  
Md. Kamrul Ahsan ◽  
Masum Shaikh ◽  
Hiroyuki Kyokawa
Keyword(s):  
Experimental Study ◽  
Mechanical Behaviour ◽  
Loading Rate ◽  
Rate Dependent

scholarly journals Mechanical behaviour of a prototype orthodontic retraction spring: a numerical-experimental study

2011 ◽  
Vol 35 (4) ◽  
pp. 414-420 ◽  
Author(s):  
M. A. Ferreira ◽  
R. Assumpcao ◽  
M. A. Luersen ◽  
P. C. Borges
Keyword(s):  
Experimental Study ◽  
Mechanical Behaviour

An Experimental Study of Properties of Ultrathin Si Layer with Bonded Si/SiO2 Interface

2013 ◽  
Vol 854 ◽  
pp. 3-10
Author(s):  
O.V. Naumova ◽  
B. Fomin ◽  
V.P. Popov ◽  
Victor Strelchuk ◽  
A. Nikolenko ◽  
...  
Keyword(s):  
Experimental Study ◽  
Raman Spectroscopy ◽  
Structural Properties ◽  
Electron Density ◽  
Electron Mobility ◽  
Structural Modification ◽  
Silicon On Insulator ◽  
Float Zone ◽  
Bonded Interface ◽  
Ultrathin Soi

Properties of Si/buried oxide (BOX) systems with bonded interface in silicon-on-insulator (SOI) wafers were studied in this paper. Results show impact of the starting Si material - Czochralski (Cz) or float-zone (Fz) grown silicon on the electron mobility (μe) and BOX charge behavior in ultrathin SOI layers. In particular, there were found: 1) the μe ~ Ne-0.3 dependencies at the electron density Ne in the range of 4х (1011-1012) cm-2 in accumulation Cz-SOI layers with the μe degradation when Si thickness decreases from 20 to 9 nm, and 2) the ~ Ne-0.6 behavior of mobility with no degradation in Fz-SOI layers. Raman spectroscopy shows the structural modification of Cz-SOI layers. An origin of degradation of the electrical and structural properties for ultrathin SOI layer is discussed.

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