Search results

In the understanding of material properties，as a full integration of design and technology and art was realized, construction quality was improved.
The specific design should be done from the following aspects: (A) Combining decoration material choice and detail design All materials have internal and external characteristics, such as morphology, texture, color, mechanical, chemical properties, and so on.
Designers should pay attention to the fine integration of these environmental factors and decoration material selection of the building when designing.
So the local climate is one of the important factors that affect the selection of colors of the building and furnishing materials.

Introduction A systematic study of hydrogen effects on the mechanical behavior of beta titanium alloys as well as the improvement of mechanical properties by using hydrogen as a temporary alloying element within a modified heat treatment called ThermoHydrogen Processing (THP) require an accurate determination of the hydrogen diffusion coefficient DH in the respective titanium alloy [1-3].
The results gained on the mechanical properties of hydrogenated beta titanium alloys are important for the prediction of the applicability range in hydrogen containing environments since hydrogen is known to be detrimental with respect to the mechanical properties of metals and alloys often leading to hydrogen embrittlement [6].
Fuselage parts of modern aircraft are typical applications for Ti 21S due to its high strength and good corrosion properties.
Corresponding activation energies Q and preexponential factors D0 were calculated and are listed in Tables 4 and 5 respectively.
Collings: Materials Properties Handbook: Titanium Alloys, (ASM International, Materialspark, Ohio, USA 1994)

This computational analysis explores the properties of uneven energy gain or loss on the fluid transport properties of a chemically reacting nanofluid with two types of geometries.
The transport properties during primary assumption are (5) The transport properties at the limits of the geometry at any time are (6) when= 1 corresponds to flow over a vertical cone and = = 0 corresponds to flow over a vertical flat plate.
Physically, this phenomenon shows that significantly affects the concentration and related thickness of the concentration boundary layer.
Journal of Mechanical Engineering Science, DOI: 10.1177/0954406217695847
International Journal of Mechanical Sciences,126 (2017) 308-318

Because most of the chitosan based nanofibers are soluble in aqueous solutions and the other properties such as mechanical properties are not suitable for the further applications.
However, most of the nanofibers are soluble in aqueous solutions and the other properties such as mechanical properties are not suitable for the further applications.
The crosslinking time could be chosen to adapt in vivo mechanical properties [66].
The membrane showed good mechanical properties and chemical stability and could be regenerated.
As one of the neurotrophic factors, human nerve growth factor β (NGF-β) has been confirmed to enhance peripheral nerve regeneration and protect neurons from injury [95].

It has been found that the suitable gas-oil separation membrane is the compact high polymer membrane, with the properties of good oil resistance, voltage withstanding capacity, thermostability (80℃) and air permeability [10].
Although the main focus of this thesis is on the influence of ambient temperature upon the consistency between on-line monitoring and off-line analysis, during the test equipment design, factors that can change oil temperature and other conditions are also taken into consideration, thus laying down the foundation for the later studies of the influences of other factors.
The fluoropolymer has the properties of good chemical corrosion resistance capability, wide heating adaption scope, good heating bonding ability and strong shocking and tearing resistance capability.
By altering different factors, the influences of film membrane type, thickness and gas chamber structure on gas-oil separation process can be studied.
Since permeability coefficient is the product of diffusion coefficient and solubility coefficient, it will naturally increase with the rising of temperature, thus affecting permeating process.

The corrosion, corrosion fatigue and fracture failure process of aircraft structure is directly concerned with combined effect of many factors, such as load, material characteristics, corrosive environment and so on.
Subjected to fatigue loading, fatigue cracks nucleate from corrosion pits, which affect the structural integrity, reliability, durability and flight safety of navy aircraft in corrosion environment.
The transition from pit to short crack growth occurs when equivalent stress intensity factor range∆K for pit increases to threshold driving force th∆K [1].
According to stress intensity factor handbook, stress intensity factor range∆K of the deepest point in pit is expressed as [1], 1/21.65 t )1.464φ(1 πa∆σ1.1K ∆K − + = (5) The critical pit size can be found to be 2 maxt th 1.65 ci ∆σ1.1K ∆K π )1.464φ(1 a       + = − (6) Short crack growth stage.
Wu: Handbook of mechanical properties of aircraft structural metals, China aviation industry press, Beijing (1996) [6] R.

Chandrappa 1, a, Joel Hemanth 2, b 1Associate Professor and Research scholar, Department of Mechanical Engineering, Siddaganga Institute of Technology, Tumkur - 572 103, Karnataka, India 2Dean.
However, the properties of Ti and Cu have great differences in crystal structure, melting point, heat conductivity, and linear expansion coefficient.
Therefore, surface treatment and selection of bonding temperature and loading are basically important factors of the diffusion bonding process.
Other factors such as thermal conductivity, thermal expansion, and bonding environment also affect the bonding process, particularly at high bonding temperature. 
Influence of microstructure of Ti-Al based alloy on the mechanical properties at elevated temperature [J].

The main synthesis parameters such as water to the geopolymer solid ratio, alkali to cementitious ratio and molarity of NaOH were varied to understand their individual effect on setting time and the mechanical properties of the resulting geopolymer.
The calcium oxide gives fly ash pozzolanic properties and, relatively shorter setting times.
Fresh and hardened properties of geopolymer concrete are affected by several factors such as alkaline liquid to fly ash ratio, NaOH concentration, the ratio of alkaline solutions, curing conditions, and admixtures [10].
Most of the reports [11,12,13] on the properties of geopolymer concrete were based on low-calcium fly ash.
[2] J.G.S.D. van Jaarsveld, Effect of the alkali metal activator on the properties of fly ash-based geopolymers, Ind.

"Fiber Reinforced Polymers FRP" provide good alternatives to regular reinforcing steel, as their resistance to environmental factors specifies them and provide durability, in addition to their appropriate prices.
The interaction through GFRP sheets and the concrete surface has considered as the key factor for achieving the mechanical flexural property.
The fiber incorporation can effectively improve important properties of concrete like the brittle failure of concrete, can control element sizes and developing crack defects, thus eventually improving mechanical properties, especially durability for concrete structures (5).
Table 2 shows the Materials Properties.
Table 2: Materials Properties Properties of Steel and GFRP used in Beams Item Size [mm] Modulus of Elasticity [MPa] Tensile Strength [MPa] GFRP/ Rebar 18/ diameter 41x103 744 Properties of GFRP Laminates and Resin used in Beams Item Density Modulus of Elasticity [MPa] Tensile Strength [MPa] GFRP/ Laminates 2500 [kg/m3] 72.5x103/ Tensile Modulus 2270 Resin/Sikadur330 1.3 [kg/l] 3400/ Flexural Modulus 30 Properties of Steel used in Beams Item Size [mm] Modulus of Elasticity [MPa] Yield Strength [MPa] Main Steel 16/ diameter 200x103 400 Stirrups 8/ diameter 200x103 360 Experimental Results and Discussion Test results have arranged as shown in Table 3.

The goal of this manuscript is to review the effects of major process parameters on build quality (residual stress, composition changes) & material properties (micro structure)[1].
Many reaches is focused on the process parameters and their influences on the physical, chemical, and mechanical properties of fabricated parts in various additive manufacture process.
Time taken for producing each specimen is noted and factors effecting the time are judged based on their affect on the mechanical properties, part accuracy and production time.
Conclusions From the observations made from time analysis, part accuracy and Surface roughness it is possible that combination of parameters Layer thickness (50 micron), laser intensity level (-8), hatching strategy (45 degree) which are used to produce specimen 4 can produce parts with close dimensional tolerances utilizing optimal amount time.We also can check influence of these parameters on the mechanical properties through various tests thus determining best possible set of parameters to achieve required properties in the parts produced.
Lecture Notes in Mechanical Engineering.