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By a laser induced pre-treatment, the material properties are locally changed so that influencing the material flow is possible.
In this process the mechanical properties are locally modified by local heat treatment that causes microstructural changes.
An optimisation of the mechanical properties adapted to the component demands can be obtained, for example, using a CO2 laser.
Other publications on laser induced heating of aluminium alloys have shown that the mechanical properties can be influenced directly by short-time laser heating [2-4].
Experimental results Materials properties, after the bulk and local (laser) heat treatments, were evaluated by microhardness measurements.

Experimental results show that the bridge model can well reflect the mechanical properties of the prototype.
Mechanical properties of organic-glasses specimen were tested.
Comparing with the field monitoring data, the reliable bridge model that can well reflect the actual mechanical properties of the original structural is achieved.
Summary The fact that deterioration is essentially a complex process affected by many factors adds the difficulty to evaluate the present state of the structure.
Experimental research on the effect of constraint of the deck on the mechanical properties of the reinforced concrete arch bridge.

This study evidenced that the Ti6Al4V-SiCf composite produced by roll-bonding exhibits superior mechanical properties with respect the same material prepared by Hot Isostatic Pressing (HIP) owing to the smaller grain size and the higher dislocation density.
The results confirmed that the fibre-matrix interface is substantially stable and the mechanical properties are scarcely affected by the treatments also in the most severe conditions examined by the authors.
a) b) Conclusions The microscructure of Ti6Al4V+SiCf composite produced by RDB shows smaller grains and higher dislocation density with respect to that prepared by HIP; these features guarantee better mechanical properties.
The mechanical properties of RDB composite should be scarcely affected by the treatments also in the most severe conditions (1000 hours), as already observed for HIP composite.
On the basis of present results RDB seems to be advantageous with respect to HIP for producing Ticomposites because the costs are lower and the mechanical properties better.

Introduction There are several different ideas about polypropylene fiber impact on the mechanical properties of concretes, especially the influences on the compressive, axis compressive and splitting tension strength in literatures at home and abroad, and as for the idea that polypropylene fiber can improve the strength of concretes supported by fibers suppliers, it’s considered to be selective generally.
As for the above overviews of some experimental researches, some scholars have their opinions, they think the splitting tension and compressive strength of fiber concretes are affected by many factors, such as kind of aggregates, particle diameter, grading, W/C ratio, specimen size and shaping condition, curing time, test method, and the fiber type, fiber content, fiber length and slenderness ratio, etc.
Therefore, this paper made an experimental research about the influences of polypropylene fibers on mechanical properties of concretes from the angle of the strength grades of concretes.
The specimen were cured under the same conditions (C20 test specimen were cured under the standard conditions，C30 and C40 test specimen were cured in water before testing), until testing at the age of 7, 14, 28 days, the concrete mechanical properties test was took according to Standard for test method of mechanical properties on ordinary concrete GB/T50081-2002.
Influences of polypropylene fibers on mechanical properties of concretes A comparison experiment on polypropylene fiber concretes at a fiber content of 0.9Kg/m3 and ordinary concretes was made.

The Dian Lake peat soil as the research object, through the strengthening treatment, the compressive strength are taken into consideration in comparison with the different curing composition and other factors in performance of solidified soil.
Using the mixed curing agent one and the mixed curing agent two to solidify the peat soil, analysis the influence law of various factors on the compressive strength of the peat soil, and through the regression analysis to establish the strength model considering cement content, curing agent content, building waste residue content and age affect.
Protocol The experiment scheme of the strength of solidified soil’s influencing factors.
Due to the poor engineering properties of peat soil, the effect is often not ideal only to reinforce the peat soil mixed with curing agent and cement.
[7] Enlai Xiong, Yongfen Ruan, Wenlian Liu The research on the mechanical property test and normalized behavior of peat soil in Yunnan Province.

Discuss the amount of initiator, the molar ratio of monomer, reaction temperature, which the influence on the properties of the polymer.
Through the infrared spectrum, thermo-gravimetric analyzer, viscometer, such as instrument on its microstructure and properties were characterized.
Table 1 The factor levels table of orthogonal experiment Factors level A B C D E (NH4)2S2O8(ml) NaHSO3 (ml) Ratio of monomers AMPS:DMAA Reaction time(h) pH value 1 1.3 0.5 3:2 0.8 8.5 2 3.0 1.3 3:1 1.0 10.0 3 4.6 2.6 2:2 1.5 11.0 4 6.9 3.9 2:1 2.0 12.0 By 16 sections orthogonal, we can get the best conditions of polymerization is A3B4C1D3E3 from the average size of the various factors.
Every kind of factors is important influence factors of the novel fluid loss additive, so we should optimize the individual factors to obtain the most economic and effective solution.
[7] Jinku Xie, Xin Zhao, Jinchun Sheng, Xiang Guan, Synthesis and Properties of High Temperature-Resistant Starch Filtrate Reducer for Drilling Fluid.

If the implants being made of magnesium to repair the diseased bone tissue, they are possible to lose the mechanical property before the healing of bone tissue due to the rapid corrosion.
The ‚“ + and – ’’ represent the low and high levels of the factors.
However, this mechanical properties was not only dependent on one factor but it was slightly affected by the combination of variables in the model.
Also, from the response surface regression analysis the final empirical model in terms of coded factors can be obtained.
The statistical design determines the significant factors in HAP coated onto magnesium via cold spray.

The important properties studied are moisture content, total clay content, grain fineness number, and grain shape.
The shape, size, composition, and purity of the sand are important factors to the success of the mold making operation [6, 7].
The size distribution of the sand affects the quality of the castings.
The sand properties was investigated to determine its possible use in the metal casting.
Properties of the sand investigated are grain shape, moisture content, clay content, and grain size and distribution.

The fabric made by fractal fiber has the properties of crease-resistance, wash and wear, non-ironing, conduction of moisture, good mechanical property, no polar light , and it can be dyed under the condition of normal pressure, etc.
There are different mechanical property between cotton fiber and fractal polyester filament.
This affected the strength of the cotton / fractal polyester filament twisted yarn.
Mechanical property includes breaking strength and breaking elongation rate.
It combines good properties of natural fiber with synthetic fiber’s.

Sintering behavior and mechanical properties of the forsterite bodies were evaluated from 1200ºC to 1500°C.
This apparently indicates that mechanical properties were not governed by densification after 1400ºC.
Grain growth was the main factor that affected the improvement of mechanical properties beyond 1400ºC.
The comparison between the mechanical properties of forsterite with cortical bone and HA is shown in Table 1.
Sevostianov, Dependence of the mechanical properties of sintered hydroxyapatite on the sintering temperature, Material Science and Engineering A. 431(2006) 218–227