Search results

The thermal effect arisen from absorbing inclusions is the main factor which causes the damage of optical materials or component irradiated by the longer pulse duration laser.
The unsteady heat conduction depends markedly on both the thermal properties of inclusions and the parameters of laser.
Results and discussion The temperature field is affected markedly by laser pulse intensity, laser pulse duration and inclusion size.
Furthermore, the upper three factors vary in different situation, so it’s hard to precisely depict the dependence of thermal effect on these factors in a unified expression.
The evolution of temperature in inclusion and dielectric is affected by pulse duration.

It was difficult to isolate the effect due to the individual factors because the factors which affect the plasticity of soils for the most part act simultaneously[5].
The methodof adding admixtures to the high liquid limit soil could improve the physical and mechanical properties due to the chemical reactions between the soil and the admixtures that lead to the decrease of plasticity index, expansion and shrinkage potentials and also the increase of water stability and compressive strength [7].
Plastic limits of Soil 3 Conclusion From the results obtained the following can be concluded: (i) The geopolymerization process had influenced the values of liquid and plastic limits of those soils (ii) There is high potential the physical and mechanical properties of those soils could be improved by this process References [1] R.
West:Some Factors Affecting The Relation Between The Clay Minerals In Soils And Their Plasticity, Clay Minerals (1966) 6, 179
Chaudhary: Mechanism of geopolymerization and factors influencing its development: a review, J Mater Sci (2007) 42, pp. 729-746

Preface Engineering structure in the of mechanical problem, its essence should belong to the category of the nonlinear, that is, by research of the class structure system of internal corresponding volume and by role of foreign factors is nonlinear of causal relationship, linear assumptions is just actual problem of simplified, as linear problem of basic theory and analysis method of increasingly perfect, nonlinear problem of research will became academia and engineering application research of focus content.
Because the mechanical properties of the concrete is affected by many factors, such as water cement ratio, sand particle gradation, aggregate strength, so, it is difficult to accurately reinforced concrete structure of internal force analysis.
ABAQUS reinforced concrete nonlinear analysis Reinforced concrete structure nonlinear factors mainly divided into three groups [1]: the material nonlinearity, geometry nonlinear, nonlinear boundary conditions.
Material nonlinearity refers to the steel and concrete two materials in the structure stress analysis process, not only should consider its elastic properties that linear phase, also want to consider its plastic performance that is nonlinear phase.
(3) Some other factors may affect analysis results, such as: the convergence of finite element analysis, simulation of the rationality of the parameter selection and finite element, the division of the unit types and amounts, test specimen quality and loading conditions casting.

If a thermal process is applied to eliminate the cold work effect, once again the thermal process modifies the mechanical properties and makes to behave different from the original material
A wide variety of engineering materials are subjected to a large number of mechanical tests to measure their strength or other important properties of interest.
The use of a beam in a four-point bending configuration represents an attractive alternative to define the mechanical properties of the material and to identify the amount of previous loading history induced in a component.
From Figure 2b, it is possible to clearly indentify the amount of strain hardening and Bauschinger effect affecting a component.
Urriolagoitia-Sosa, Analysis of Prior Strain History Effect on Mechanical Properties and Residual Stresses in Beams, PhD Thesis, Oxford Brookes University, 2005, pp. 58-66

Furthermore, quality supervision departments tend to focus on furniture amount of stability, strength, formaldehyde, heavy metals, soft and hard covering areas such as physical and chemical properties of the surface when they check up office furniture and office space.
All the factors above mentioned are all bound up with users’ physiological and psychological experience and affect their health and safety as well as the product purchase and evaluation.
Material Factors Affecting the Performance of Office Chairs.
The muggy phenomenon caused by adpressed parts of the body with seat is a factor to affect comfort level.
According to the related parameters, wool fabrics not only has good heat insulation but also has good moisture absorption properties.

Consolidation and Mechanical Properties of Gas Atomized Al-Si Powder Y.J.
Introduction High strength aluminum alloys have been used for automobile, sport goods, electrics and aerospace applications because of their lightness and good mechanical properties [1].
Their mechanical properties have been improved by addition of alloying elements such as copper, magnesium, zinc and silicon, etc.
The mechanical properties of the Al-Si alloys are dependent on volume fraction and size of primary Si particles.
The UTS mechanical properties of 450MPa were much higher than that of conventional hypoeutectic Al-Si alloys.

The chemical composition and mechanical properties of TMCP steel used are shown in Tables 1 and 2 respectively.
Mechanical properties of TMCP steel Plate used Table 2 Chemical composition of TMCP steel plate used Fig. 1 Shape of CCT fatigue test specimen Fig. 2 Shape of CT fatigue test specimen Fig. 3.
Schematic circulation system of synthetic seawater for fatigue test It has been recognized that the fatigue strength of steel in a corrosion environment is significantly affected by the fatigue loading speed.
That means that other factors, for example, the formation of the rust, electrocoating, stress concentration of the pit at the tip of the crack, corrosive dissolution etc. are thought to be related to the crack propagation behavior in seawater condition.
Fujimoto: Journal of The Society of Naval Architects of Japan, Vol.142 (1977), pp.239-250 [3] Stress Intensity Factors Handbook, Vol. 1, Pergamon Press (1987) [4] T.L.

As a kind of lithographic material, due to its unique optical properties, mechanical properties and chemical properties and the lower cost compared with LIGA technology, SU-8 photoresist technology has been widely used in manufacturing of MEMS sensors and actuators, and attracted more and more attention in MEMS and micro manufacturing field.
Because of being affected by lithography pattern shape and other factors, additional researches will be taken on the development parameters.
TFQ and RLWD under factors in different levels are calculated according to the experimental results.
With the two indicators of graphics quality synthesized, taking the operating factors into account, the optimum process parameters of 300 micron thickness of photoresist is: A3B4C2D1.
Soft bake temperature, which determines the photosensitive properties of rubber, in this experiment, controlled in the range between 80℃ and 95℃.

To-date, research efforts have been mainly focused on electric properties or fracture toughness of piezoelectric materials under fatigue.
The typical material properties are given in Table 1.
Main material properties of PZT-5 The specimens were subjected to a cyclic bipolar electric field together with a static mechanical load.
However, what is the main factor that affects the strength of piezoceramics without initial crack?
It is a known fact that for conventional ceramics, most mechanical properties decrease with increasing porosity.

PEDOT:PSS is a very successful conducting polymer due to its interesting properties like high conductivity, high transmittance in the visible light range, good electrochemical properties, and good thermal stability [15,16].
Optical properties and Raman Spectra of the counter electrode.
Photovoltaic properties of the DSSCs.
Thicker films exhibit better electrochemical properties as compared to thinner films.
However, thicker platinum polymer counter electrode films have reduced transmittance, ultimately affecting their performance in bifacial applications.