Static and Fatigue Strength of Glass Chopped Strand Mat/Polyester Resin Laminates

2009 ◽  
pp. 64-64-21 ◽  
Author(s):  
MJ Owen
Keyword(s):  
Fatigue Strength ◽  
Polyester Resin ◽  
Chopped Strand Mat

Quasi-Static Indentation Behaviour of Glass Fibre Reinforced Polymer

2014 ◽  
Vol 970 ◽  
pp. 317-319 ◽  
Author(s):  
Syed Mohd Saiful Azwan ◽  
Yahya Mohd Yazid ◽  
Ayob Amran ◽  
Behzad Abdi
Keyword(s):  
Glass Fibre ◽  
Polyester Resin ◽  
Loading Rates ◽  
Reinforced Polymer ◽  
Glass Fibre Reinforced Polymer ◽  
Static Indentation ◽  
Indentation Tests ◽  
Fibre Reinforced Polymer ◽  
Glass Fibre Reinforced ◽  
Chopped Strand Mat

Fibre reinforced polymer (FRP) plates subject to quasi-static indentation loading were studied. The plates were fabricated from three layers of chopped strand mat glass fibre and polyester resin using vacuum infusion process. Indentation tests were conducted on the plates with loading rates of 1 mm/min, 10 mm/min, 100 mm/min and 500 mm/min using a hemispherical tip indenter with diameter 12.5 mm. The plates were clamped in a square fixture with an unsupported space of 100 mm × 100 mm. The loads and deflections at the indented location were measured to give energy absorption-deflection curves. The results showed that the loading rate has a large effect on the indentation behaviour and energy absorbed.

Failure of GRP Pipe Bends Under Out-of-Plane Flexure with and Without Pressure

1993 ◽  
Vol 207 (2) ◽  
pp. 133-141
Author(s):  
R Kitching ◽  
P Myler
Keyword(s):  
Internal Pressure ◽  
Polyester Resin ◽  
Design Procedure ◽  
Out Of Plane ◽  
Failure Loads ◽  
Smooth Pipe ◽  
Plane Bending ◽  
Chopped Strand Mat ◽  
Plane Flexure

Tests to failure have been carried out on six smooth pipe bends constructed by hand lay-up from polyester resin and glass in the form of chopped strand mat. The failure loads under out-of-plane bending only are compared with those where this type of loading is combined with internal pressure. The results are discussed in relation to the design procedure adopted in BS 7159: 1989.

scholarly journals Tensile and Fatigue Behaviour of Glass Fibre Reinforced Polyester Composites

2018 ◽  
Vol 7 (3.17) ◽  
pp. 25
Author(s):  
Roy Hanson Jimit ◽  
Kamarul Ariffin Zakaria ◽  
Omar Bapokutty ◽  
Sivakumar Dhar Malingam
Keyword(s):  
Fatigue Strength ◽  
Glass Fibre ◽  
Composite Structures ◽  
Fatigue Behavior ◽  
Fatigue Behaviour ◽  
International Conference ◽  
Glass Fibre Reinforced ◽  
Chopped Strand Mat ◽  
Glass Fibre Reinforced Composites ◽  
Materials Used

This document contains the formatting information for the papers presented at the International conference on “4th International Conference on Recent Advances in Automotive Engineering & Mobility Research (ReCAR IV)”. The conference would be held at Hotel Bangi-Putrajaya during August 8-10, 2017. Fibreglass composites are one of the materials that can be used in manufacturing of the vehicles part due to their excellent lightweight properties. Composite structures may undergone the fatigue failure when subjected to a certain numbers of cyclic loading, which is normally occurs below the ultimate strength of material. However, there still lack of studies on the effect of fibre orientations on the fatigue strength of glass fibre reinforced composites (GFRC). Therefore, the purpose of this study is to determine which orientation would have the highest fatigue strength. The fibre materials used in this study is unidirectional glass fibre with [0/90]°, [ ±45]° orientation and chopped strand mat (CSM). The composite is fabricated from glass fibre and polyester resin using a hand lay-up technique according to ASTM D3039 for tensile test and ASTM D3479 for fatigue test. The results were presented in the form of S-N curve. The results show that the mechanical properties and fatigue behavior were significantly affected by the fibre orientation of the GFRC  

Dynamic Mechanical Analysis and Thermo-Gravimetric Analysis on Chopped Strand Mat Reinforced with Polyester Resin and Graphite Powder

2018 ◽  
Vol 1148 ◽  
pp. 48-60
Author(s):  
Pala Srinivas Reddy ◽  
T. Victor Babu ◽  
S. Santosh Kumar
Keyword(s):  
Dynamic Mechanical Analysis ◽  
Polyester Resin ◽  
Thermo Gravimetric Analysis ◽  
Graphite Powder ◽  
Mechanical Analysis ◽  
Gravimetric Analysis ◽  
Thermo Gravimetric ◽  
Dynamic Mechanical ◽  
Wide Range ◽  
Chopped Strand Mat

Fiber reinforced plastics have been widely used for manufacturing aircrafts and spacecrafts structural parts because of their high mechanical, physical properties. These are used in manufacturing of structural composites, printed circuit boards and in a wide range of special-purpose products which are included in medical field as well. Within reinforcing materials chopped strand mats are the most frequently used in structural constructions because of their properties such as viscoelasticity, strength and high thermal stability. The present work focuses on mechanical and thermal properties of chopped strand mat reinforced with polyester resin and filler as graphite powder (which has high melting point) in different weight fractions. Evaluation of material properties is tested using Thermo-Gravimetric Analysis and Dynamic Mechanical analysis at a standard temperature ranging between 20°C - 460°C and evaluated. The results show that inclusion of graphite powder in chopped strand mat exhibit better enhancement in results when compared.

Behavior of Fiberglass Polymer Composites under Ballistic Impact and Quasi-Static Punch Shear Tests

2016 ◽  
Vol 881 ◽  
pp. 300-306 ◽  
Author(s):  
Agnys Jony Gomes Fernandes ◽  
Wanderley Ferreira de Amorim Jr. ◽  
Walter Belarmino Filho ◽  
Isac Paiva Guedes ◽  
Andréa Lopes Silva ◽  
...  
Keyword(s):  
Polymer Composites ◽  
Polyester Resin ◽  
Ballistic Impact ◽  
Woven Fabric ◽  
Shear Tests ◽  
Ballistic Performance ◽  
Displacement Behavior ◽  
Chopped Strand Mat ◽  
Materials Used ◽  
Internal Fracture

In the last decades, the composite materials were used in the modern ballistic armor systems. Thus, techniques have been developed to predict its mechanical properties, damage mechanisms and strength associated to ballistic impact penetration. The objective of this work was the ballistic impact and quasi-static punch shear behavior of fiberglass polymer composites. The materials used in the experiments were: woven fabric and chopped strand mat E-glass fiber and polyester resin. The composites submitted to ballistic impact and quasi-static punch shear tests had 1, 5, 10, 15, and 20 layers and 5, 8, 10, 12, 14, 15, and 20 layers, respectively. A quasi-static punch shear fixture test was developed. The best ballistic performance composite was the 10 layers woven fabric. In quasi-static punch shear test, it was possible to analyze the internal fracture of composites, and the load x displacement behavior was observed.

Fracture of glass-reinforced plastic pipes of mixed wall construction under pressure loading

1997 ◽  
Vol 211 (4) ◽  
pp. 223-246 ◽  
Author(s):  
R Kitching ◽  
D R Hose ◽  
R Priestner ◽  
S H Hashemizadeh
Keyword(s):  
Polyester Resin ◽  
Resin Matrix ◽  
Hydraulic Pressure ◽  
Design Codes ◽  
Pressure Loading ◽  
Fracture Patterns ◽  
Reinforced Plastic ◽  
Wall Construction ◽  
Chopped Strand Mat ◽  
Glass Reinforcement

Hand laid-up straight pipes of 250 mm inside pipe diameter, constructed from polyester resin matrix and E-glass reinforcement supplied in two different combinations of chopped strand mat (CSM) and woven rovings (WR) have been tested to destruction under internal hydraulic pressure. Results are compared with those from a similar pipe constructed from CSM only and one constructed by wrapping CSM layers on a PVC (polyvinyl chloride) liner. Failure pressures for the different constructions are compared with each other and with design pressures associated with two design codes. Features of the fracture patterns are noted, following an extensive microscopic examination of the straight pipes.

Searching for the causes why some of the paintings by Mihaly Munkacsy are darkening

1990 ◽  
Vol 48 (2) ◽  
pp. 204-205
Author(s):  
Imre Pozsgai ◽  
Klara Erdöhalmi-Torok
Keyword(s):  
Electron Beam ◽  
Cross Section ◽  
Polyester Resin ◽  
National Gallery ◽  
X Ray ◽  
Art Historians ◽  
Made In ◽  
Grinding And Polishing

The paintings by the great Hungarian master Mihaly Munkacsy (1844-1900) made in an 8-9 years period of his activity are deteriorating. The most conspicuous sign of the deterioration is an intensive darkening. We have made an attempt by electron beam microanalysis to clarify the causes of the darkening. The importance of a study like this is increased by the fact that a similar darkening can be observed on the paintings by Munkacsy’s contemporaries e.g Courbet and Makart. A thick brown mass the so called bitumen used by Munkacsy for grounding and also as a paint is believed by the art historians to cause the darkening.For this study, paint specimens were taken from the following paintings: “Studio”, “Farewell” and the “Portrait of the Master’s Wife”, all of them are the property of the Hungarian National Gallery. The paint samples were embedded in a polyester resin “Poly-Pol PS-230” and after grinding and polishing their cross section was used for x-ray mapping.

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