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The natural fiber is the fibers that have similar properties and function as the synthetic fiber.
Results and Discussion A comparison is made between all specimens with control specimen to show a result on mechanical properties of concrete.
This phenomenon is cause by interruption of concrete properties by additional weight of rachis.
The weight of rachis was influenced the concrete strength properties and also have possibility in interfering with other basic properties of the concrete.
Pearson Prentice Hall. (2009) [2] Shah, S.P. and Rangan in: Fiber Reinforced Concrete Properties.

Scratches reduced fatigue lives by factors up to 22 and LSP restored 74% of pristine life.
The mechanical properties of the substrate material are given in Table 1.
Table 1: Typical mechanical properties of clad 2024-T351 [9] Material Young’s Modulus [MPa] Poisson’s ratio Yield Strength [MPa] Ultimate Tensile Strength [MPa] Elongation at Fracture [%] Al 2024-T351 72000 0.3 360 481 19 Test Sample Design.
The model used linear elastic material properties and stress intensity factors (SIF) were calculated using the modified virtual crack closure technique (VCCT) [12].
Mechanical scribe damage reduced the fatigue life of 2 mm thick 2024-T351 aluminium by factors up to 22 compared to pristine material. 2.

Where the variation of these parameters will affect to the mechanical properties of welds (as response) was the shear strength.
Further analysis of the interaction between the welds properties and Friction Stir welding process parameters to obtain the optimum response, was carried out by applying Response Surface Methodology (RSM).
In sticking torque versus shoulder diameter plot, the product of two opposing factors produces a maximum sticking torque.
The variation of these parameters will affect to the mechanical properties (as the response), i.e. the tensile strength of welds joint.
(1) Where Y is the response, x1, x2, ... , xk,are independent factors from 1 to k, and the function Ф is called the response surface or the response function.

The mechanical properties of aluminium alloy can also be greatly improved by thermomechanical processing.
Therefore, the most reasonable way is to increase conductor’s highest permitted temperature.As a result of all the above factors combined, we developed high strength and heat resistance aluminium alloy 6Z63.
Results and Analysis Effect of drawing processing Different tensile processing has great inference on the properties of the product and the final mechanical properties are shown in Table 2.
(2) Thermo-mechanical treatment technology can greatly increase the mechanical properties of the alloy
Mechanical properties of Al (Sc, Zr) alloys at ambient and elevated temperatures [J].

Where the variation of these parameters will affect to the mechanical properties of welds (as response) was the tensile load.
Further analysis of the interaction between the welds properties and Friction Stir welding process parameters to obtain the optimum response, carried out by applying Response Surface Methodology (RSM).
The variation of these parameters will affect to the mechanical properties (as response), i.e. the tensile strength of welds joint.
In many experimental conditions, it is possible to represent an independent factor in quantitative form as given in equation (1).
Then these factors can be considered as having a functional relationship or response as follows: (1) Between the response Y and x1, x2, ... , xk, factors quantitative k, the function Ф is called the response surface or the response function.

Mechanical properties of two stoichiometric NiAl intermetallic alloys processed by hot hydrostatic extrusion were investigated.
The last way is based on the fact that the mechanical properties of a single crystal of NiAl are very anisotropic in spite of its high symmetry, cubic (B2) structure [4].
Mechanical properties of as-extruded materials.
Mechanical properties of as-annealed materials.
Summary Mechanical properties of the polycrystalline stoichiometric NiAl at room temperature depend strongly on its texture.

Study on the Influence Factors of DWTT for X70 Thick Wall Linepipe Minghua Liang1,a, Hongyan Liu2,b, Xiaodong He1,c 1CNPC Tubular Goods Research Institute，China 2CCDC Changqing General Drilling Company, China aliangmh@cnpc.com.cn, b32559419@qq.com, chexiaodong002@cnpc.com.cn Keywords: DWTT, X70 , Thick Wall Linepipe, Influence Factors Abstract.
The influence factors of DWTT are discussed for X70 thick wall linepipe steel.
The influence factors of DWTT (nonuniformity of the material, ductile-brittle transition temperature, notch type, evaluation method of the fracture surface, machining method and the test equipments) are discussed for X70 thick wall linepipe steel.
Thus, the machining location of the thickness reduced specimens will directly affect the test result.
Different notch types of the specimens can affect the result.

The microstructure of heavy section ductile iron determines its mechanical properties.
There are many factors influence the microstructure, such as chemical composition, cooling rate, liquid treatment and heat treatment[2-5].
For identical conditions, cooling rate plays a significant role in determining the microstructure and hence mechanical properties of heavy section ductile iron [4].
Ductile iron suffers from non-spherical graphite formation due to long time solidification in heavy section castings, which is detrimental to the mechanical properties and restricts its applications[6-9].
On the other hand, the matrix microstructure affects mechanical properties where the softer ferrite gives higher ductility but lower yield strength than pearlite[4].

Effect of Powder Loading and Binder Materials on Mechanical Properties in Iron-ABS Injection Molding Process N.
In this study, the effect of powder loading and binder content on the mechanical properties was investigated experimentally.
Currently, application of FDM required an enhanced and higher mechanical properties toward rapid manufacturing.
Results will be presented for mechanical properties including, tensile, flexural strength and hardness.
Akinci, Mechanical and Morphological Properties of basalt filled Polymer Matrix Composites, Sci.

The Influence of Different Natural Fibers on the Mechanical Properties of Geopolymer Shengjie Zhou1,2,a, Yan Zhang1,2,b, Zihao Feng1,2,c, Fei Bi1,2,d and Liang Fan1,2,e* 1Shandong Transportation Institute, Jinan 250031, Shandong, China 2Shandong Province New Road Materials and Technology Engineering Laboratory, Jinan 250031, Shandong, China azhoushengjie@sdjtky.cn, bzhangyan@sdjtky.cn, cfengzihao@sdjtky.cn, dbifei@sdjtky.cn, efanliang@sdjtky.cn, Keywords: Geopolymer; natural fiber; mechanical strength; water absorption; shrinkage.
Based on the modification of geopolymer, this paper also carried out the research on the effects of different natural fibers such as coconut shell, banana, bamboo fiber, sisal, jute, ramie and sisal on the properties of geopolymer, hoping to modify the geopolymer concrete mechanical properties and provide sufficient reference data.
The additives were selected from seven kinds of natural fibers as the influencing factors.
In terms of mechanical properties, the addition of natural fiber made up for the characteristics of high brittleness of geopolymer materials and easy drying and cracking of the surface.
Low in: Thermal and mechanical properties of cotton fabric-reinforced geopolymer composite.