Wave propagation due to impact through layered polymer composites

2014 ◽  
Vol 115 ◽  
pp. 1-11 ◽  
Author(s):  
P. Alagappan ◽  
K.R. Rajagopal ◽  
A.R. Srinivasa
Keyword(s):  
Wave Propagation ◽  
Polymer Composites ◽  
Layered Polymer Composites

scholarly journals Transition Time of Ultrasonic Wave as a Tool of Quality Evaluation of Layered Polymer Composites

2017 ◽  
Vol 42 (3) ◽  
pp. 499-506 ◽  
Author(s):  
Małgorzata Szymiczek
Keyword(s):  
Polymer Composites ◽  
Ultrasonic Wave ◽  
Quality Evaluation ◽  
Bending Strength ◽  
Physical Nature ◽  
Ultrasonic Waves ◽  
Transition Time ◽  
Material Structure ◽  
Sound Waves ◽  
Layered Polymer Composites

AbstractObservation of behaviour phenomena of ultrasonic waves in an object allows for quality assessment, identification and location of discontinuity. Physical nature of acoustic processes is based on propagation of mechanical waves constituting a disturbance of equilibrium of the state of material. The acoustic process identified by selected characteristics can be a source of information about state of material, its structure, and properties, which is particularly important for systems exhibiting anisotropy properties, and such are layered polymer composites. They are special materials because their properties depend greatly on the manufacturing technology. Therefore, while conducting acoustic tests which use the influence of elastic properties and homogeneity of material structure for propagation of sound waves the adopted method of measuring characteristics which identifies propagation of ultrasonic wave phenomenon is of particular importance. The aim of the work was quality evaluation of layered polymer composites made by winding and press moulding by the method of echo and C-scan, using head Phased Array. Composites have been tested by thermal and fatigue degradation. Quality evaluation has been made based on the transition time of the ultrasonic wave and the bending strength.

scholarly journals Identification of structural defects in composite materials by the thermal imaging non-destructive testing method

2019 ◽  
Vol 298 ◽  
pp. 00119
Author(s):  
Andrey Kokurov ◽  
Igor Odintsev ◽  
Boris Chichigin ◽  
Dmitry Subbotin
Keyword(s):  
Composite Materials ◽  
Polymer Composites ◽  
Thermal Imaging ◽  
Structural Defects ◽  
Non Destructive Testing ◽  
Destructive Testing ◽  
Testing Method ◽  
Non Destructive ◽  
Layered Polymer Composites

The article discusses the practical aspects of applying the thermal imaging non-destructive testing method of layered polymer composites. The specific purpose of the work is to demonstrate the possibilities of detecting in material and geometric identification of initial defects such as debonding.

Learning from Natural Nacre: Constructing Layered Polymer Composites with High Thermal Conductivity

2017 ◽  
Vol 9 (38) ◽  
pp. 33001-33010 ◽  
Author(s):  
Guiran Pan ◽  
Yimin Yao ◽  
Xiaoliang Zeng ◽  
Jiajia Sun ◽  
Jiantao Hu ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Polymer Composites ◽  
High Thermal Conductivity ◽  
Layered Polymer Composites

Nanotube liquid crystal elastomers: photomechanical response and flexible energy conversion of layered polymer composites

2014 ◽  
Vol 25 (35) ◽  
pp. 355501 ◽  
Author(s):  
Xiaoming Fan ◽  
Benjamin C King ◽  
James Loomis ◽  
Eva M Campo ◽  
John Hegseth ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Energy Conversion ◽  
Polymer Composites ◽  
Liquid Crystal Elastomers ◽  
Layered Polymer Composites

Properties of multi-layered polymer composites with Vectran fiber reinforcement

2021 ◽  
Vol 256 ◽  
pp. 113045
Author(s):  
Andrzej Komorek ◽  
Robert Szczepaniak ◽  
Pawel Przybylek ◽  
Aneta Krzyzak ◽  
Jan Godzimirski ◽  
...  
Keyword(s):  
Polymer Composites ◽  
Fiber Reinforcement ◽  
Layered Polymer Composites
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