Effect of Vibration and Chemical Solution on Mechanical Properties of Fiberglass Reinforced Composites

Voids are inevitable in the fabrication of fiber reinforced composites and have a detrimental impact on mechanical properties of composites. Different void contents were acquired by applying different vacuum bag pressures. Ultrasonic inspection and ablation density method were adopted to measure the ultrasonic characteristic parameters and average porosity, the characterization of voids' distribution, shape and size were carried out through metallographic analysis. Effects of void content on the tensile, flexural and interlaminar shear properties and the ultrasonic characteristic parameters were discussed. The results showed that, as vacuum bag pressure went from -50kPa to -98kPa, the voids content decreased from 4.36 to 0.34, the ultrasonic attenuation coefficient decreased, but the mechanical strengths all increased.

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MECHANICAL PROPERTIES OF ROTATIONALLY MOLDED PET MICROFIBRIL REINFORCED COMPOSITES

International Journal of Modern Physics B ◽

10.1142/s021797920604177x ◽

2006 ◽

Vol 20 (25n27) ◽

pp. 4613-4618 ◽

Cited By ~ 3

Author(s):

R. J. T. LIN ◽

D. BHATTACHARYYA ◽

S. FAKIROV

Keyword(s):

Mechanical Properties ◽

Manufacturing Industry ◽

Polymer Processing ◽

Raw Material ◽

Medium Density ◽

Reinforced Composites ◽

Rotational Molding ◽

Commercial Scale ◽

Strength And Stiffness ◽

Set Up

Being a fast growing plastic manufacturing industry, rotational molding has been using the linear polyethylenes extensively as the raw material. As these materials have shown insufficient mechanical properties for certain applications where strength and stiffness of the products are the main concerns, worldwide rotational molders have expressed a need for stronger and stiffer materials to be available for rotomolding. A possible attractive solution may be the recently developed microfibril reinforced composites (MFCs). Blends of linear medium density polyethylene/polyethylene terephthalate (LMDPE/PET) with an MFC structure are manufactured on a commercial-scale set-up and thereafter used in rotational molding. The samples are characterized morphologically and tested mechanically. The results obtained show that the MFC-concept has good application opportunities in the polymer processing including rotational molding.

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Microstructure and mechanical properties of Al–2Mg alloy base short steel fiber reinforced composites prepared by vortex method

Journal of Materials Science ◽

10.1007/s10853-006-0036-5 ◽

2006 ◽

Vol 41 (15) ◽

pp. 4764-4770 ◽

Cited By ~ 20

Author(s):

D. Mandal ◽

B. K. Dutta ◽

S. C. Panigrahi

Keyword(s):

Mechanical Properties ◽

Steel Fiber ◽

Vortex Method ◽

Fiber Reinforced Composites ◽

Reinforced Composites ◽

Fiber Reinforced ◽

Microstructure And Mechanical Properties ◽

Alloy Base

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Study on Performance of Recycled Aggregate Concrete

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.477.280 ◽

2011 ◽

Vol 477 ◽

pp. 280-289 ◽

Cited By ~ 1

Author(s):

Shao Wei Yao ◽

Zhen Guo Gao ◽

Chang Rui Wang

Keyword(s):

Mechanical Properties ◽

Coarse Aggregate ◽

Physical And Mechanical Properties ◽

Recycled Aggregate Concrete ◽

Recycled Aggregate ◽

Chemical Solution ◽

Aggregate Concrete ◽

Recycled Coarse Aggregate ◽

Natural Aggregate ◽

Strength And Durability

The properties of recycled coarse aggregate and the slump, the physical and mechanical properties and durability of recycled aggregate concrete were studied through tests. The results indicate that the slump, compressive strength and durability of concrete with recycled aggregate are lower than that of concrete with natural aggregate when recycled coarse aggregate fully absorbs water. However, the slump can be similar to that of concrete with natural aggregate. The properties of recycled aggregate concrete can be improved by strengthening the recycled coarse aggregate, and it is also found that the recycled coarse aggregate strengthened by grinding is superior to that soaked by chemical solution.

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