Energy-Absorption Behaviors of Glass Fiber Reinforced Plastic (GFRP) Plates with Hemispherical/Corrugated Force-Multipliers

2015 ◽  
Author(s):  
Lakshmanan Palanimuthu ◽  
Anindya Deb ◽  
Pankaj Mallick
Keyword(s):  
Glass Fiber ◽  
Energy Absorption ◽  
Fiber Reinforced ◽  
Glass Fiber Reinforced Plastic ◽  
Fiber Reinforced Plastic ◽  
Glass Fiber Reinforced ◽  
Reinforced Plastic

Drop-weight impact testing for the study of energy absorption in automobile crash boxes made of composite material

2020 ◽  
pp. 146442072095281
Author(s):  
N Nasir Hussain ◽  
Srinivasa Prakash Regalla ◽  
Yendluri V Daseswara Rao ◽  
Tatacipta Dirgantara ◽  
Leonardo Gunawan ◽  
...  
Keyword(s):  
Glass Fiber ◽  
Energy Absorption ◽  
Impact Testing ◽  
Fiber Reinforced ◽  
Glass Fiber Reinforced Plastic ◽  
Fiber Reinforced Plastic ◽  
Drop Weight ◽  
Glass Fiber Reinforced ◽  
Reinforced Plastic ◽  
Weight Impact

There is an ever-increasing demand in the automotive sector to continuously improve the performance and reduce cost through weight reduction in the structure of the vehicle. In the present scenario, it is also necessary to meet the standards set by crash safety regulating authorities in various parts of the world. In automobiles, the crash box is placed in the anterior region to absorb the impact energy in the event of an accident. Glass fiber reinforced plastic crash boxes have a high strength-to-weight ratio and also are good in energy absorption, particularly useful in this scenario. In this paper, the effectiveness of different triggers in combination with various geometries is investigated for Glass fiber reinforced plastic crash boxes using drop-weight impact testing. A trigger is a geometric irregularity introduced in the crash box design to alter the energy as well as force levels by modifying the deformation mode under loading. Comparison of change in force level, absorption of impact energy, specific energy absorption values was performed for composite crash boxes made of various types of cross-sectional geometries along with multiple patterns of triggers. Force versus displacement (F–D) curves are drawn for all the cases of the glass fiber reinforced plastic crash boxes to understand the behavior of each combination formed with various types of geometries and triggers, under impact loading. Strength-to-weight ratio was considered as the deciding factor for the comparisons to know the best and worst cases of the crash boxes made of different cross-sections along with various trigger types. This study provides detailed insights into the drop-weight impact testing procedure including the preparation of specimens, setting up the drop-weight impact test, preparation of specimen clamps, safety precautions involved, data acquisition from the test and its processing.

The Importance of Material Structure in the Laser Cutting of Glass Fiber Reinforced Plastic Composites

1995 ◽  
Vol 117 (1) ◽  
pp. 133-138 ◽  
Author(s):  
G. Caprino ◽  
V. Tagliaferri ◽  
L. Covelli
Keyword(s):  
Experimental Data ◽  
Glass Fiber ◽  
Laser Cutting ◽  
Material Structure ◽  
Fiber Reinforced ◽  
Fiber Volume ◽  
Glass Fiber Reinforced Plastic ◽  
Fiber Reinforced Plastic ◽  
Glass Fiber Reinforced ◽  
Reinforced Plastic

A previously proposed micromechanical formula, aiming to predict the vaporization energy Qv of composite materials as a function of fiber and matrix properties and fiber volume ratio, was assessed. The experimental data, obtained on glass fiber reinforced plastic panels with different fiber contents cut by a medium power CO2 cw laser, were treated according to a procedure previously suggested, in order to evaluate Qv. An excellent agreement was found between experimental and theoretical Qv values. Theory was then used to predict the response to laser cutting of a composite material with a fiber content varying along the thickness. The theoretical predictions indicated that, in this case, the interpretation of the experimental results may be misleading, bringing to errors in the evaluation of the material thermal properties, or in the prediction of the kerf depth. Some experimental data were obtained, confirming the theoretical findings.

scholarly journals Development of walkway blocks with high water permeability using waste glass fiber-reinforced plastic

AIMS Energy ◽  
2018 ◽  
Vol 6 (6) ◽  
pp. 1032-1049 ◽  
Author(s):  
Yusuke Yasuda ◽  
◽  
Hayato Iwasaki ◽  
Kentaro Yasui ◽  
Ayako Tanaka ◽  
...  
Keyword(s):  
Glass Fiber ◽  
Water Permeability ◽  
High Water ◽  
Waste Glass ◽  
Fiber Reinforced ◽  
Glass Fiber Reinforced Plastic ◽  
Fiber Reinforced Plastic ◽  
Glass Fiber Reinforced ◽  
Reinforced Plastic
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