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External Factors Impact on Basic Properties of Hovercraft Skirt Materials A.K.
The paper presents the results of the impact various external factors have on hovercraft operational properties.
It is shown that the strength properties and adhesion are significantly changed during the operation of the ACV.
On the other hand, information on physical and mechanical properties of the materials along with modeling techniques of ACV dynamics will allow us to put forward specific requirements for the development of materials for prospective ACVs.
[3] Experimental and theoretical investigation of physical and mechanical properties of materials and standard units skirt amphibious hovercrafts baronetage type, Lobachevsky State University, N. 

The Influence of Friction Stir Welding Parameters on Axial Force and Mechanical Properties of AA6061-T6 Using Taguchi Method Chonnikan Wongkasae1, a,*, Adirek Baisukhan2,b,* 1Faculty of Engineering, Chaing Mai University, Chiang Mai, Thailand 2Department of Industrial Engineering, Faculty of Engineering, Chiang Mai University, Thailand achonnikan_w@cmu.ac.th, badirek.b@cmu.ac.th Keywords: Axial force, friction stir welding, aluminnium alloy, Taguchi, mechanical properties.
In this research, a comprehensive investigation is carried out to axial force and mechanical properties of the AA6061-T6 butt joints fabricated using FSW, the study involves the influence of preheat temperature and using Taguchi analysis that the main factors affecting the parameters of the FSW which to be used in this research are rotation speed, welding speed, dwell time and preheat temperature.
Results In this study, two mechanical properties were measured: tensile strength and hardness.
Dumpala: Effects of friction stir welding on corrosion and mechanical properties of AA6063 in sea water, Proc.
Muhayat: Effect of tools rotational speed on the mechanical properties of one-step double-acting friction stir welded aluminum alloy AA6061 hollow pane, Int.

Research on High Temperature Mechanical Properties of Casing in Complex Environment Deep Well Jun Wang1,a 1CNPC Jilin Oil field Oil Production Technology Research Institute, China National Petroleum Corporation, Songyuan 138000, Jilin, China aw-jun@petrochina.com.cn Keywords: Complex deep well, Casing steel, Mechanical properties, Strength reduction coefficient, High temperature Abstract.
Taking an ultra-deep field as an example, the results show that casing mechanical properties decreases with the temperature increasing; in the design process of high temperature well, the temperature effect is needed to consider.
Temperature effect of casing material properties, especially the effect variation on the Q125, V140 high grade steel tube material properties with temperature, needs to be obtained from experimental research.
Based on statistical theory [10], this experiment used five samples at each temperature for the determination of the properties.
[8] Ling Shushen, “Statistical Processing of Test Data and Error Analysis - 8th Chapter”, “Determination of the Least Number of Samples in Mechanical Properties Test”, Physical testing- physical, vol 37, pp. 544–548, January 2001

This review aims to provide an overview of the comparison of differ types of Natural fiber composites, factors that affect the mechanical, thermal and machinabilty of NFCs and their engineering applications. 1.
The main factors affecting mechanical performance of NFCs are, Selection of fiber i.e including type, harvest time, extraction method, aspect ratio, treatment and fiber content, matrix selection, interfacial strength, fiber dispersion, fiber orientation, composite manufacturing process and porosity.
Analysis on Mechanical Properties: Ajith Gopinath, et al [1] made the experiment on mechanical properties of jute fiber reinforced composites with polyester and epoxy resin.
To improve mechanical properties jute was hybridized with glass fiber.
Study on the mechanical properties of epoxy composite using short sisal fiber.

Influence of Ageing on Mechanical Properties of Epoxy Coatings Danuta Kotnarowska1, a, Małgorzata Wojtyniak1, b 1 Radom Technical University, Al.
Introduction Environmental factors, affecting polymeric coatings, induce ageing processes that lead to their destruction, what results in lower durability [1, 2].
Factors that are the most dangerous are aggressive media.
Destruction polymer coatings caused by environmental factors results in deterioration of their mechanical strength and resistance to the action of erosive particles [7, 8].
Deterioration of mechanical properties of epoxy coatings and increase of their surface roughness cause decrease of their erosive wear resistance [9, 10].

The influence of heat input on the tensile strength properties and hardness of the base metal, heat affected and fusion zones were studied.
The results revealed that the mechanical properties of the welds strongly depend on welding conditions and process parameters.
In general, the 6xxx series aluminium alloys are prone to hot cracking, so the correct choice of joint and filler metal are the determinant factors.
The chemical composition and the mechanical properties of used material are given in Tables 1 and 2.
Mechanical, fatigue and microstructural properties of friction stir welded 5083-H111 and 6082-T651 aluminium alloys.

A statistical study has been performed in order to determine the how the factors affect the responses.
The effect of the stoichiometric ratio of mechanical properties was reported [5-6].
Flexural Properties.
The variation of the resin - hardener ratio was also affecting the flexural strength of composites.
Conclusions In this study, factors affecting the mechanical properties of kenaf-Kevlar hybrid composites have been studied.

Analysis of Product Quality Through Mechanical Properties and Determining Optimal Process Parameters of Untreated and Heat-Treated AISI 1050 Alloy during Turning Operation S.P.
Analysis results also revealed that the Feed rate was found to be the most significant factors affecting the roundness of untreated samples, followed by Spindle Speed.
Depth of cut, Insert Corner Radius and Cutting Fluid concentration contribute equally for the Untreated specimens; and spindle speed was found to be the most significant factors affecting the roundness in case of annealed specimens.
Spindle Speed was found to be the most significant factors affecting the MRR, whereas, Feed, Depth of cut, Insert Corner Radius and Cutting Fluid concentration contribute in a decreasing order respectively for both the Untreated and Treated specimen.
Spindle Speed is found to be the most significant factors affecting the power consumption for both annealed and untreated samples, and Feed, Depth of cut, Insert Corner Radius and Cutting Fluid concentration contribute in a decreasing order respectively with Depth of cut and Insert Corner Radius having equal contribution for the Untreated specimen.

After magnesium alloy bone fixation degrades some time, its overall strength will decline, but the remaining strength still needs to ensure bone healing, therefore, it is very important to study how the related factors affect the degradation of magnesium alloys.
Gu [5] studied fatigue corrosion properties of AZ91D and WE43 magnesium alloys in the cyclic loads.
Studies have shown that cyclic loading will accelerate the corrosion rate, and the corrosion rate increases as the load increases.Hazibullah Waizy[6] studied how the corrosion environment affected the mechanical properties of magnesium alloys.
The results showed that after a certain time of corrosion, the mechanical properties decrease significantly.
This study is a basic research on mechanical environment affecting the degradation of the magnesium alloys, which can lay a certain foundation for the further study of magnesium alloys.

The research was study the effect of gas metal arc welding process parameters on mechanical property.
Factors affecting the tensile strength are the most carbon dioxide and 27 voltage were tensile strength 213.43 MPa.
The experimental design of full factorial design to be the main factors effectors affecting significantly.
Factors used in the shielding gas and voltage of the P-Value of factors was 0.000 (<0.005).
Factors affecting the tensile strength are the most carbon dioxide and 27 voltage were tensile strength 213.43 MPa.