Tensile behavior of woven basalt fiber reinforced composites at high strain rates

2019 ◽  
Vol 76 ◽  
pp. 207-221 ◽  
Author(s):  
Ahmed Elmahdy ◽  
Patricia Verleysen
Keyword(s):  
High Strain ◽  
Basalt Fiber ◽  
Tensile Behavior ◽  
Fiber Reinforced Composites ◽  
Strain Rates ◽  
Reinforced Composites ◽  
Fiber Reinforced ◽  
High Strain Rates

Dynamic Behavior of Fiber Reinforced Composites Under Multiaxial Compression

1999 ◽  
Author(s):  
Kenji Oguni ◽  
G. Ravichandran
Keyword(s):  
Failure Mode ◽  
Kink Band ◽  
Fiber Reinforced Composites ◽  
Fiber Direction ◽  
Strain Rates ◽  
Reinforced Composites ◽  
Fiber Reinforced ◽  
Band Formation ◽  
Multiaxial Compression ◽  
Axial Splitting

Abstract Results from an experimental investigation on the mechanical behavior of a unidirectional reinforced polymer composite with 50% volume fraction E-glass/vinylester under uniaxial and proportional multiaxial compression are presented. Specimens are loaded in the fiber direction using a servo-hydraulic material testing system for low strain rates and a Kolsky (split Hopkinson) pressure bar for high strain rates, up to 3000 s−1. The results indicate that the compressive strength of the composite increases with increasing levels of confinement and increasing strain rates. Post-test optical and scanning electron microscopy is used to identify the failure modes. The failure mode that is observed in unconfined specimen is axial splitting followed by fiber kink band formation. At high levels of confinement, the failure mode transitions from axial splitting to kink band formation and fiber failure. Also, a new energy based analytic model for studying axial splitting phenomenon in unidirectional fiber-reinforced composites is presented.

Mechanical and Dynamic Properties of Basalt Fiber-Reinforced Composites with Nanoclay Particles

2019 ◽  
Vol 45 (2) ◽  
pp. 1017-1033 ◽  
Author(s):  
Mehmet Bulut ◽  
Ömer Yavuz Bozkurt ◽  
Ahmet Erkliğ ◽  
Hakan Yaykaşlı ◽  
Özkan Özbek
Keyword(s):  
Dynamic Properties ◽  
Basalt Fiber ◽  
Fiber Reinforced Composites ◽  
Reinforced Composites ◽  
Fiber Reinforced

scholarly journals Nondestructive Inspection of Thin Basalt Fiber Reinforced Composites Using Combined Terahertz Imaging and Infrared Thermography

2016 ◽  
Vol 2016 ◽  
pp. 1-13 ◽  
Author(s):  
Przemyslaw Lopato ◽  
Grzegorz Psuj ◽  
Barbara Szymanik
Keyword(s):  
Infrared Thermography ◽  
Basalt Fiber ◽  
Nondestructive Inspection ◽  
Fiber Reinforced Composites ◽  
Reinforced Composites ◽  
Fiber Reinforced ◽  
Fusion Algorithm ◽  
Fiber Reinforced Composite ◽  
Dynamic Level ◽  
Reinforced Composite

The inspection of thin basalt fiber reinforced composite materials was carried out using two nondestructive methods: terahertz time domain imaging and infrared thermography. In order to combine the information about the defects arising in examined materials the inspection results were parametrized. In order to acquire more information content, new approximation based features are proposed. Then, a knowledge extraction based multivariate analysis of preselected features’ vector was carried out. Finally, in order to integrate features distributions of representing different dynamic level of information, a multiresolution wavelet based data fusion algorithm was applied. The results are presented and discussed.

Stress-strain behavior of carbon filament yarns under high strain rates

2012 ◽  
Vol 82 (7) ◽  
pp. 685-699 ◽  
Author(s):  
Ayham Younes ◽  
Vignaesh Sankaran ◽  
André Seidel ◽  
Martin Waldmann ◽  
Chokri Cherif ◽  
...  
Keyword(s):  
High Speed ◽  
Test Method ◽  
Fiber Reinforced Composites ◽  
Impact Loads ◽  
Strain Rates ◽  
Reinforced Composites ◽  
Test Results ◽  
Fiber Reinforced ◽  
Carbon Filament ◽  
Extreme Stress

Fiber-reinforced composites used in numerous technical applications have to meet the ever increasing safety requirements. Resistance to extreme stress under high velocity impact loads assumes even greater significance. Previous studies on the behavior of fiber-reinforced composites under impact loads provide little insight about the properties of filament yarns, a basis for many composite applications. Hence this paper focuses on the development of a suitable test method for performing high speed tensile tests on all filament yarn types, and the acquisition and analysis of the test results. This will enable the derivation of material models for their usage in the field of composites applications. Initially, the widely used carbon fiber filament yarns have been tested. The conclusive test results with a reduced yarn clamp mass and high stiffness of the test apparatus indicate that tensile strength and modulus of elasticity of carbon filament yarns increase with higher strain rates.

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