Gravity Effects on the Density of Laminated Composite due to the Differences in Angle Cured

This research is carried out to study the feasibility of the gravity effects on curing position of the laminated composite structures to enhance the curing space needed. Vertical cured laminate having almost similar properties with common horizontal cured laminate able to save much space in composite industry especially for developing Small and Medium Industry (SMI). Horizontal cured laminates filled up spaces in which SMI lack of. Polyesters and E-glass fibers were used as the raw material in this research. Vacuum bagging technique was used to suck out the excess resin during lay-up to avoid any voids and air inside laminate and cured at different angle position in room temperature for 24 hours. Seven samples of laminated composite were fabricated and cut into specific dimension in accordance to ASTM standard. The aim of the research was to investigate the density property of the thermosetting laminated composite by curing the laminate at different angle using vacuum bagging technique. From the testing, SN6 had the same density value with control sample, SN1 that had value of 1.46 g/cm3.

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Water Absorption and Thickness Swelling of Laminated Composite after Cured at Different Angle

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.465-466.86 ◽

2013 ◽

Vol 465-466 ◽

pp. 86-90 ◽

Cited By ~ 1

Author(s):

Mohd Yuhazri bin Yaakob ◽

T.T.T. Jennise ◽

H. Sihombing ◽

N. Mohamad ◽

S.H. Yahaya ◽

...

Keyword(s):

Water Absorption ◽

Composite Structures ◽

Moisture Absorption ◽

Glass Fibers ◽

Laminated Composite ◽

High Water ◽

Raw Material ◽

Thickness Swelling ◽

Gravity Effects ◽

Materials Used

Moisture absorption is a very important factor in polymers and composite materials used for hull manufacture and stability in marine environment. High water absorption of the material will affects the mechanical properties and stability in composite. This research is carried out to study the feasibility of the gravity effects on curing position of the laminated composite structures to enhance the curing space needed. Vertical cured laminate having almost similar properties with common horizontal cured laminate able to save much space in composite industry. Horizontal cured laminates filled up spaces in which SMI lack of. Polyesters and E-glass fibers were used as the raw material in this research. Vacuum bagging technique was used to suck out the excess resin during lay-up to avoid any voids and air inside laminate and cured at different angle position in room temperature for 24 hours. Seven samples of laminated composite were fabricated and cut into specific dimension in accordance to ASTM standard. This paper will discuss about the investigation on the water absorption and thickness swelling of the thermosetting laminated composite by curing the laminate at different angle using vacuum bagging technique. From the testing, SN6 and SN7 shows to have good water resistant in physical properties.

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Tensile Properties of Angle Cured Laminated Composites Structures under Gravity Effects

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.465-466.101 ◽

2013 ◽

Vol 465-466 ◽

pp. 101-105

Author(s):

Mohd Yuhazri bin Yaakob ◽

T.T.T. Jennise ◽

H. Sihombing ◽

Md Radzai bin Said ◽

U. Nirmal ◽

...

Keyword(s):

Tensile Properties ◽

Composite Structures ◽

Weight Ratio ◽

Laminated Composite ◽

High Strength ◽

Maximum Force ◽

Composites Materials ◽

Laminated Composite Structures ◽

Gravity Effects ◽

Optimum Productivity

As the usage of composites materials are significant in the industries of automobiles, shipping and constructions due to their non-corrosive and high strength to weight ratio. Anyway, the production of composites needed to be increased to meet the demand. At this stage, problem faced by Small and Medium Industries / Entrepreneurs (SMI/E) is the confined and limited space available that restricts the optimum productivity. They commonly cure the composites horizontally that requires ample space and unable to afford for high-end equipment such as mechanical oven and autoclave in the production as a result of high capital cost.This research is carried out to study the feasibility of the gravity effects on curing position of the laminated composite structures to enhance the curing space needed. The aim of the research was to investigate the tensile properties of the thermosetting laminated composite by curing the laminate at different angle using vacuum bagging technique. From the testing, SN 5 which denominated to be 60 ̊ found to have the best tensile properties in term of maximum force exerted and Youngs modulus.

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Gravity Effects of Curing Angle on Laminated Composite Structures: A Review on Novel Study

Advances in Materials Science and Engineering ◽

10.1155/2013/876824 ◽

2013 ◽

Vol 2013 ◽

pp. 1-10 ◽

Cited By ~ 2

Author(s):

T. T. T. Jennise ◽

M. Y. Yuhazri ◽

Haeryip Sihombing ◽

S. H. Yahaya ◽

Umar Nirmal ◽

...

Keyword(s):

Literature Review ◽

Glass Fiber ◽

Composite Structures ◽

Laminated Composite ◽

Scientific Study ◽

Horizontal Position ◽

Confined Space ◽

Laminated Composite Structures ◽

Gravity Effects ◽

Optimum Productivity

Composites manufactured by small and medium industries/entrepreneurs (SMI/E) are conventionally cured in the horizontal position. Hence, the confined space restricts optimum productivity. Besides, SMI/E is unable to allocate high budget for high-end technology such as autoclave and vacuum mechanical oven which limits the development of SMI/E as a result of high capital cost. Through a series of literature review, the review confirmed that there is no similar scientific study has been conducted. Consequently, the review is carried out to facilitate the investigation of the feasibility of a gravity cured glass fiber laminated thermosetting composites via vacuum bagging at angle position from horizontal (0°) to vertical (90°) to enhance the curing space required.

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