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Wood has been well-developed in many applications to improve its properties in engineered wood products [3, 4, 8, 9].
So, this study evaluates the dependent qualitative efficient factors that improved the performance of timber products, as follows: - Literature review to document the novel factors leading to the new timber capabilities under the efficient significant
So, the study evaluates the dependent qualitative efficient factors that improved the performance of timber products.
The Novel Factors Played a Significant Role to the New Timber Potential in Mechanical Stress Conditions Efficiently Some researcher studied the properties of wood using AFM (Atomic Force Microscope) as a one of smart technology techniques [10, 11, 12, 13].
Where it turns out that there are new attributes due to chemical treatment and characterization of wood such as physical and mechanical properties that may influence of engineering applications in the future.

A detailed survey of parameters affecting the FCG rate of austenitic stainless steel is available [3].
Mechanical Properties Associated with Temperature and Strain Rate The mechanical behaviors of material have significantly affected by temperature and strain rate.
Experimental results from Steichen [9] and Marschall et. al.[10] are available for studying the effect of strain rate on mechanical properties of 304SS.
Conclusions Numerical regression analysis has been carried out to investigate the effect of loading frequency and temperature on fatigue crack growth rate for 304SS by employing the mechanical properties of material.
The mechanical properties of material were used to characterize the influences of loading frequency and/or temperature on FCG rate.

The thickness of plate did not significantly affect the compressive stress distribution around the bolt holes.
The chemical composition and mechanical properties are indicated in Table 1.
Table 1 Chemical compositions and mechanical properties of SM490B steel Chemical composition [wt%] Mechanical property C Si Mn P S σyield [MPa] σultimate [MPa] E [GPa] Elongation [%] 0.16 0.38 1.23 0.012 0.009 368.3 529.2 205.3 23.0 ` For the relaxation test, applied load on the bolts was measured using the strain gage as shown in Fig. 2 (a) for 30 days after loading.
It is, therefore, concluded that the thickness of the base metal does not significantly affect the slip of the bolt-connected plates.
Chang: Journal of Korean Society of Steel Construction, Vol. 9, No. 2 (1997), p.171 [3] S-Y Lee: Factors affecting Mechanical Behavior of High Tension Bolted Joints (Ph.D.

In this study, we optimized the mechanical properties of A380 alloy by optimizing its chemical composition.
These curves (equations) are used to tell the direction in which an element affects a property, but, in some cases, the predicted values deviate from the measured values.
In fact, these formulas are the trend equations and they are used to estimate the results (e.g. properties) when the factors (alloying elements) are within their tested ranges, provided that the effects of the factors are linear and their interactions are negligible.
It has been utilized to develop alloys for high thermal conductivity, as well as for enhancing mechanical properties of alloys.
Alloy compositions and predicted properties.

And then it will affect the subsequent martensitic phase transition, and eventually affect the comprehensive properties of the steel [3-4]. 51CrV4 steel has good mechanical and technological properties, and has been widely used in various fields.
The quenching process was optimized and the austenite grain, microstructure and mechanical properties were analyzed.
Fig. 3 Effect of heating temperature on austenite grain size of test steel The factors affecting the austenite grain size mainly include austenitizing temperature, alloying elements and holding time.
Because it can affect martensitic transformation and further affect the comprehensive properties of steel [12].
Effect of Austenitizing Temperature on Mechanical Properties of Test Steel.

A chemo-damage model for concrete affected by alkali-aggregate reaction (AAR) is presented.
In this work, a chemo-damage model is presented for anisotropic swelling of AAR-affected concrete.
The model combines the AAR kinetics with the plastic-damage model, thus the chemical and mechanical phases are coupled.
The total damage of the material involves the mechanical damage induced by external loads and the AAR damage caused by expansive gels, thus the damage factor is defined as follows: (11) where is the mechanical damage factor.
The analysis is performed with the following mechanical properties: 193 GPa and 0.3 for the steel Young’s modulus and Poisson’s ratio and 37.3 GPa and 0.22 for the concrete Young’s modulus and Poisson’s ratio.

New type of lightweight gypsum-based material Alena Vimmrová Department of Materials Engineering and Chemistry, Faculty of Civil Engineering, Czech Technical University in Prague, Thákurova 7, 166 29 Prague 6, Czech Republic vimmrova@fsv.cvut.cz Keywords: Light weight material, gypsum, aluminum powder, foaming, thermal properties, mechanical properties, water vapor transport properties.
Basic physical, mechanical, thermal and water vapor properties were investigated.
Experimental results and discussion The basic physical and mechanical properties of tested compositions are presented in Table 2.
Table 2: Basic physical and mechanical properties.  
Interlaboratory comparison of hygric properties of porous building materials.

The test is subjected to 3 samples from base metal, weld metal and heat affecting zone (in the final heat-treated state).
Table 1 - Alloying elements of the studied metal and its mechanical properties Alloying elements (mass %) Mechanical properties C Mn Cr Si Ni Cu P S Rm, MPa Rp0.2, MPa A5, % 0,06 1,0 0,21 0,19 0,18 0,17 0,008 0,003 543 365 29 Results and Discussion At room temperature and atmospheric pressure, gas phase hydrogen charging practically does not occur.
The study is carried out in several directions: measurement of mechanical properties at tensile, analysis of subcritical crack expansion depending on time, growth of fatigue crack in the range of pressures and mechanical stresses, etc.
Hydrogen gas in pipeline can lead to embrittlement zones due to several factors: hydrogen volume concentration, pressure, operational temperature and pipe quality.
Effect of low partial hydrogen in a mixture with methane on the mechanical properties of X70 pipeline steel / T.T.

Mechanics Properties of Adapter and Development of User Subroutine Mechanics Properties of Adapter.
Figure 2 shows the test sample of V-sharp adapter, doing the platform test of V-sharp adapter test specimen, the out-of-plane mechanical properties are shown in figure 3.
The mechanical properties of V-sharp adapter exist strong nonlinear in the force to deformation curve for V-sharp adapter.
It is the main factor to influence the mechanics properties of V-sharp adapter; The platform width is mainly affected by rib high, and the rib angle mainly influence platform initial force.
Considering all the factors above, the six working conditions are studied in this paper.

Thermal cycles and cooling rate gradients affect the microstructural properties of the weld, which is responsible for mechanical performance [10].
This approach applied for enhancing the mechanical properties of assemblies produced by friction stir welding, as demonstrated by some authors [16].
The choice of process factors was done according to the main findings described in literature, which indicate the most influencing parameters on welding properties [29-30].
This plasma interacts with the laser radiation, affecting the energy delivery and process dynamics.
Qu: Effect of simulated welding thermal cycle on microstructure and mechanical properties of X90 pipeline steel Mat.