An investigation for the effect of recycled matrix on the properties of textile waste cotton fiber reinforced (T-FRP) composites

2015 ◽  
Vol 38 (7) ◽  
pp. 1231-1240 ◽  
Author(s):  
M. Safa Bodur ◽  
Hasret E. Sonmez ◽  
Mustafa Bakkal
Keyword(s):  
Cotton Fiber ◽  
Fiber Reinforced ◽  
Textile Waste ◽  
Frp Composites ◽  
Waste Cotton Fiber

Effect of Recycled LDPE Matrix on the Properties of Waste Cotton Fiber Reinforced (WCF-R) Composites

2014 ◽  
Vol 3 (1) ◽  
pp. 135-135 ◽  
Author(s):  
M. Safa Bodur ◽  
H. Ece Sonmez ◽  
Ömer Berk Berkalp ◽  
Mustafa Bakkal
Keyword(s):  
Cotton Fiber ◽  
Fiber Reinforced ◽  
Waste Cotton Fiber

Behavior and modeling of post-heated circular concrete specimens repaired with fiber-reinforced polymer composites

2021 ◽  
pp. 136943322110585
Author(s):  
Seyed Mehrdad Elhamnike ◽  
Rasoul Abbaszadeh ◽  
Vahid Razavinasab ◽  
Hadi Ziaadiny
Keyword(s):  
Strain Curve ◽  
Concrete Columns ◽  
Fiber Reinforced Polymer ◽  
Fiber Reinforced ◽  
Stress Strain Curve ◽  
Stress Strain ◽  
Concrete Members ◽  
Frp Composites ◽  
Reinforced Polymer ◽  
Fiber Reinforced Polymer Composites

Exposure of buildings to fire is one of the unexpected events during the life of the structure. The heat from the fire can reduce the strength of structural members, and these damaged members need to be strengthened. Repair and strengthening of concrete members by fiber-reinforced polymer (FRP) composites has been one of the most popular methods in recent years and can be used in fire-damaged concrete members. In this paper, in order to provide further data and information about the behavior of post-heated circular concrete columns confined with FRP composites, 30 cylindrical concrete specimens were prepared and subjected under four exposure temperatures of 300, 500, 700, and 900. Then, specimens were repaired by carbon fiber reinforced polymer composites and tested under axial compression. Results indicate that heating causes the color change, cracks, and weight loss of concrete. Also, with the increase of heating temperature, the shape of stress–strain curve of FRP-retrofitted specimens will change. Therefore, the main parts of the stress–strain curve such as ultimate stress and strain and the elastic modulus will change. Thus, a new stress–strain model is proposed for post-heated circular concrete columns confined by FRP composites. Results indicate that the proposed model is in a good agreement with the experimental data.

scholarly journals NaOH/Urea Swelling Treatment and Hydrothermal Degradation of Waste Cotton Fiber

2020 ◽  
Vol 8 (6) ◽  
pp. 703-713
Author(s):  
Lixia Gao ◽  
Sheng Shi ◽  
Wensheng Hou ◽  
Shuhua Wang ◽  
Zhifeng Yan ◽  
...  
Keyword(s):  
Cotton Fiber ◽  
Hydrothermal Degradation ◽  
Waste Cotton Fiber

Effects of Twist Drill Point Angle on Thrust Force and Delamination Factor in Hybrid Fiber Composites Drilling

2014 ◽  
Vol 564 ◽  
pp. 501-506 ◽  
Author(s):  
Mohd Azuwan Maoinser ◽  
Faiz Ahmad ◽  
Safian Shariff ◽  
Tze Keong Woo
Keyword(s):  
Feed Rate ◽  
Thrust Force ◽  
Polymeric Composite ◽  
Drilling Process ◽  
Twist Drill ◽  
Fiber Reinforced ◽  
Hybrid Fiber ◽  
Frp Composites ◽  
Delamination Factor ◽  
Drill Point

Drill point angle of twist drill has a significant effect on thrust force and delamination factor on drilled holes in fiber reinforced polymer (FRP) composites. In this study, three drill point angle of twist drill; 85°, 118° and 135° were used to drill holes in hybrid fiber reinforced polymeric composite (HFRP). HFRP composites were fabricated using vacuum infusion molding (VIM) technique. The test samples were cured at 90°C for two hours. In drilling process various drill point angle and feed rate were employed to investigate the effect of both parameters on thrust force and delamination factor when drilling the HFRP composite. The results showed that small drill point angle and low feed rate can reduce the thrust force leading to the reduction of damage factor at the holes entrance and exit.

Sign in / Sign up

Export Citation Format

Share Document