STRAIN STATE MONITORING OF THE STRUCTURAL STATE FROM POLYMER MATRIX COMPOSITE MATERIAL BASED ON FIBER-OPTIC SENSORS (review)

2019 ◽  
pp. 88-98
Author(s):  
I.A. Ruzakov ◽  
Keyword(s):  
Composite Material ◽  
Matrix Composite ◽  
Polymer Matrix ◽  
Structural State ◽  
Strain State ◽  
Fiber Optic ◽  
Fiber Optic Sensors ◽  
Polymer Matrix Composite ◽  
State Monitoring

Application of fiber optic sensors for elevated temperature testing of polymer matrix composite materials

2011 ◽  
Vol 18 (1-2) ◽  
pp. 109-116
Author(s):  
John Montesano ◽  
Marina Selezneva ◽  
Cheung Poon ◽  
Zouheir Fawaz ◽  
Kamran Behdinan
Keyword(s):  
Elevated Temperature ◽  
Composite Materials ◽  
Matrix Composite ◽  
Polymer Matrix ◽  
Optical Sensors ◽  
Fiber Optic ◽  
Fiber Optic Sensors ◽  
Polymer Matrix Composite ◽  
Test Protocol ◽  
Temperature Applications

AbstractAdvanced polymer matrix composite (PMC) materials have been more frequently employed for aerospace applications due to their light weight and high strength. Fiber-reinforced PMC materials are also being considered as potential candidates for elevated temperature applications such as supersonic vehicle airframes and propulsion system components. A new generation of high glass-transition temperature polymers has enabled this development to materialize. Clearly, there is a requirement to better understand the mechanical behaviour of this class of composite materials. In this study, polyimide-coated fiber optic sensors are employed to continuously monitor strain in a woven carbon fiber bismaleimide (BMI) matrix laminate subjected to tensile static and fatigue loading at elevated temperatures. A unique experimental test protocol is utilized to investigate the capability of the optical sensors to monitor strain and track stiffness degradation of the composite material. An advanced interrogation system and an optical spectrum analyzer are utilized to track the variation in the optical fiber wavelength and the wavelength spectrum for correlation with strain gage measurements. Isothermal tensile static and fatigue tests at room temperature, 105°C, 160°C and 205°C suggest that these optical sensors are capable of continuously monitoring strain and tracking the stiffness loss of a highly compliant PMC specimen during cyclic loading. The results illustrate that employing optical sensors for elevated temperature applications has significant advantages when compared to conventional strain gages.

Effect of water absorption on the properties of wood in polymer concrete composite material

10.12737/4523 ◽  
2014 ◽  
Vol 4 (2) ◽  
pp. 177-182 ◽  
Author(s):  
Стородубцева ◽  
Tamara Storodubtseva ◽  
Томилин ◽  
Andrey Tomilin
Keyword(s):  
Composite Material ◽  
Water Absorption ◽  
Matrix Composite ◽  
Polymer Matrix ◽  
Mechanical Characteristics ◽  
Synergistic Effects ◽  
Polymer Matrix Composite ◽  
Polymer Concrete ◽  
Reinforcing Fillers ◽  
Crystallization Reaction

The dependences of the main mechanical characteristics of polymer-matrix composite material on the content of the structure-forming components are examined: modifying fillers, retarder of crystallization reaction and reinforcing fillers, which are injected into the composition first separately, and then simultaneously. The studies revealed the presence of synergistic effects, ensuring the formation of a solid structure of finite composites, as well as hydrophobicity of the structure-forming components of the material.

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