how to increase the tensile strenth of a composite

Effect of fiber orientation and fiber contents on the tensile strength in ...therefore, this study was investigated what affect the fiber content and fiber orientation distribution have on the strength of composites. Fiber-reinforced thermoplastic composites by changing fiber orientation distribution and the fiber content were made. tensile strength ratio of 0 degrees direction of fiber-reinforced composites increased being proportional the fiber content and fiber orientation function as change from isotropy (J = 0) to anisotropy (J = 1). But, tensile strength ratio of 90 ...

Tensile and Impact Properties of Banana Fibre/Glass Fibre Hybrid ...19 Dec 2017 ... Variations in tensile and impact properties of banana fibre reinforced polyester composites caused by the addition of glass fib

Is it possible to enhance the tensile strength of concrete up...addition of steel fibers increases the tensile capacity of plain concrete. however the concrete is not plain at all. It become fiber reinforced concrete. By addition of fiber reinforcement of about 1% you can get 100% more tensile capacity for the concretes having compressive strength values between 40-70 MPa. (Enhanced tensile strength capacities are about 8-10 MPa). Moreover, in recent years development of engineered cementitious composites (ECC) indicated that a cement based ...

Why flexural strength,flexural modulus,tensile strength and...I prepared melt mixing of Polycarbonate/Expandable graphite composite. then did test by universal testing machine for mechanical strength on injection molded sample block prepared by microcompounder. I am doing research in Polycarbonate /Expandable graphite composite. In almost all studies and scientific publications I saw that flexural strength decreases with increase in graphite content in composite. But in my case I found that flexural strength and modulus increased with ...

Effects of Moisture and Temperature on the Tensile Strength of ...23 Oct 1976 ... there may be a slight decrease in strength. (<20%) as the temperature increases from 380 K to 450 K. b) For 90° laminates the increase in temperature from 200 K to 450 K causes a significant decrease in the ultimate tensile strength. the decrease depends both upon the temperature and the moisture content and may be as high as 60 to 90 percent. (2) Moisture Effects a) For 0° and 7r/4 laminates the moisture content of the composite material has only a small effect&nbsp;...

Composites - Strength (2)We can plainly see that the tensile strength of a composite in which the fibres fail at a lower strain that the matrix initially decreases below that of the matrix alone, reaches a minimum and thereafter increase. the is, therefore, a minimum volume fraction, fmin, of fibres that must be added in order for the composite to have a strength at least equal to that of the matrix alone, i.e.,&nbsp;...

Strength of Aligned Fibre Composites - The Design of Composite ...Loading under "constant deflection" - In a conventional tensile test the material being tested is actually stretched, i.e. a slowly increasing displacement is applied to one end of the material, the other end remains fixed in place. What is measured is the resistance that the material is imposing against being stretched. If part of the material breaks, like the matrix in the composite is just about to do, the deflection at that instant does not change. the fibres are still stretched by the same strain&nbsp;...

How can I explain the decrease in tensile strength of a...It depends upon the stiffness of the filler particles. Stiffer particles normally increase Young's modulus, but reduces tensile strength of the composite. Such results are published and explained in various articles. For example, please search the contents of journals "Polymer composites' and 'Polymer Sc. & Engg." Siddheshwar Jagtap. 4 years ago. Siddheshwar Jagtap. S.H. Kelkar and Company Ltd. Uniform dispersion of any filler in polymer matrix is required to get reinforcement in the&nbsp;...

The effect of fibre content on the mechanical properties of hemp and ...the hybrid effect of hemp fibre and basalt fibre on the tensile, flexural and impact strengths was also investigated for various ratio of hemp/basalt fibre loading such as 1:0, 0.95:0.05, 0.82:0.18, 0.68:0.32, 0.52:0.48, 0.35:0.65, 0.18:0.82 and 0:1. total fibre loading of the hybrid composites was 40 vol%. the results showed that the tensile strength and elongation at break increase with increasing fibre loading up to 40 vol% and decrease above this value for hemp fibre reinforced PF&nbsp;...

An efficient way to improve the mechanical properties of ...aBSTRaCT: Enhancement of tensile strength, impact strength, and flexural strength of polypropylene/short glass fiber composites by treating the glass fibers with coupling agent, mixing with maleated polypropylene (MPP) for com- patibilization and adhesion, and with nucleating agent for improvement of polypropylene crystallization was studied. the results showed that both the silane coupling agent and. MPP enhance tensile strength, impact strength, and flexural strength.

If strength increases does elongation also increase? - ResearchGateWhen talking about composites, the usual trade between tensile strength and elongation is that one grows while the other decreases. there are some ways to increase both -like crosslinking-, however this are the exceptions rather than the rule. also remember that when tensile strength and elongation are efectively increased, total toughness is growth, also known as tenacity. 1 Recommendation. 3 years ago. Deleted profile. added an answer. Dear S. arun. Generally, increasing&nbsp;...

Effect of reinforcement type on the mechanical properties of ...pylene have been examined. It is found that significant in- creases in elastic modulus and tensile strength can he obtained by addition of 210 percent by volume of glass fibers. Ceramic whiskers, based on alumina and silicon carbide, also lead to increases in modulus but to decreases in strength and ductility. additional measurements were made with composites pre- pared from two sizes of spherical glass heads and from carbon spheres. For the glass beads, an increase in modulus&nbsp;...

What are the reasons for an increase of elongation at break...May I know if the interfaces between fillers and matrix were strong, how its possible tensile strength decrease and elongation at break increase? I means if there is strong or less interfaces between fillers and matrix, both of the tensile strength and elongation at break of composites should be increase or decrease, respectively? or it can be for example tensile strength increased and elongation at break decreased ? Regarding to interfaces between fillers and matrix, how its possible&nbsp;...

Relation between interfacial shear strength and tensile strength of ...2 apr 2012 ... the dependence of the tensile strength of unidirectional carbon fiber/epoxy resin composite strand on the fiber-matrix interfacial shear strength was investigated. the interfacial shear strength was changed by applying different levels of liquid-phase oxidations to the carbon fibers. the tensile strength of the composite strands did not increase monotonically with increasing interfacial shear strength but showed a maximum at a certain level of the interfacial shear strength&nbsp;...

the effect of different light-curing units on tensile strength and ...the properties of resin-based composites materials are frequently reevaluated because they may be influenced by several factors. It is known that degree of conversion is related to some properties, such as microhardness and intrinsic strength of the material depending on composite resin shade, curing time, light-curing unit, irradiance, emitted light spectrum and increment thickness3,5,8,9,14,17,21,23. On the other hand, incomplete polymerization may increase water sorption and&nbsp;...

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