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Effects of alignment of reinforcement material to the properties of Polymer Matrix Composite (PMC) / Aeyzarq Muhammad Hadzreel Mohd Razali

By:

Aeyzarq Muhammad Hadzreel Mohd Razali

Material type: Text

TextPublication details: Kuantan, Pahang : UMP, 2012Description: xiii, 38 p. : ill. ; 30 cm. + 1 CD-ROMISBN:

THE0005840(Local)

Subject(s):

Polymeric composites

Dissertation note: Project paper (Bachelor of Mechanical Engineering (Manufacturing Engineering)) -- Universiti Malaysia Pahang – 2012 Abstract: This thesis investigated the effect of alignment of reinforcement material to the properties of polymer matrix composite (PMC). Tensile test and water absorption test were conducted in order to study the properties of polymer matrix composite (PMC) when the alignment of reinforcement material was varied. For this project, woven roving fiberglass was used as the fiber and unsaturated polyester resins as its matrix material. Hand layup process was used to fabricate the laminated composite. The specimens were divided into four major categories with different alignment and thickness of fiber and matrix which were 5 layers bidirectional, 5 layers multidirectional, 7 layers bidirectional, and 7 layers multidirectional. Tensile test showed that bidirectional alignment was better in term of mechanical properties compared to multidirectional alignment. The 5 layers bidirectional have a higher tensile strength compared to 5 layers multidirectional. While 7 layers bidirectional have a higher tensile strength compared to 7 layers multidirectional. The modulus of elasticity of bidirectional alignment was higher than multidirectional alignment. Bidirectional alignment was better because the external tensile load was equally distributed on all the fibers and transmitted along the axis of the fibers. Whereas in case of multidirectional alignment, fiber axes was non-parallel to load axis, resulting in off axis pulling of fibers and increased stress concentration causing the earlier failure of laminates. Water absorption test showed that multidirectional alignment absorbs more quantity of water compared to bidirectional alignment. Therefore, multidirectional alignment was not suitable for underwater application such as boat, canoe and yacht. It can be conclude that, the properties of PMC is depends on the alignment of reinforcement material.

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Holdings ( 2 )
Title notes ( 3 )

Holdings
Item type	Current library	Call number	Copy number	Status	Date due	Barcode
Final Year Report	UMPLIB PEKAN	TA418.9.C6 A49 2012 rs Bc. (Browse shelf(Opens below))	1	Not for loan		0000076083
Final Year Report	UMPLIB PEKAN	CD 7303 \| TA418.9.C6 A49 2012 rs Bc. (Browse shelf(Opens below))	1	Not for loan		0000076084

Project paper (Bachelor of Mechanical Engineering (Manufacturing Engineering)) -- Universiti Malaysia Pahang – 2012

Bibliography : p. 34

This thesis investigated the effect of alignment of reinforcement material to the properties of polymer matrix composite (PMC). Tensile test and water absorption test were conducted in order to study the properties of polymer matrix composite (PMC) when the alignment of reinforcement material was varied. For this project, woven roving fiberglass was used as the fiber and unsaturated polyester resins as its matrix material. Hand layup process was used to fabricate the laminated composite. The specimens were divided into four major categories with different alignment and thickness of fiber and matrix which were 5 layers bidirectional, 5 layers multidirectional, 7 layers bidirectional, and 7 layers multidirectional. Tensile test showed that bidirectional alignment was better in term of mechanical properties compared to multidirectional alignment. The 5 layers bidirectional have a higher tensile strength compared to 5 layers multidirectional. While 7 layers bidirectional have a higher tensile strength compared to 7 layers multidirectional. The modulus of elasticity of bidirectional alignment was higher than multidirectional alignment. Bidirectional alignment was better because the external tensile load was equally distributed on all the fibers and transmitted along the axis of the fibers. Whereas in case of multidirectional alignment, fiber axes was non-parallel to load axis, resulting in off axis pulling of fibers and increased stress concentration causing the earlier failure of laminates. Water absorption test showed that multidirectional alignment absorbs more quantity of water compared to bidirectional alignment. Therefore, multidirectional alignment was not suitable for underwater application such as boat, canoe and yacht. It can be conclude that, the properties of PMC is depends on the alignment of reinforcement material.