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Focusing on the practice pavement sections using LSAM as base in Hangzhou municipal roads, the effect factors of subgrade modulus, base modulus and base thickness on surface deflection and bending strain in base bottom is analyzed.
Based on the test of the large-stone asphalt macadam base on a road in Hangzhou, it is analyzed that how the subgrade modulus, base modulus, base thickness and thickness of the surface layer affect the mechanical properties of asphalt pavement structure by the software of BISAR3.0.
Table 5-Pavement structure and parameters Layer Location Material Thickness(cm) Modulus(MPa) Passion ratio Surface Upper surface AC-13 4 — 0.25 Middle surface AC-20 5 — 0.25 Bottom surface AC-25 7 — 0.25 Base LSAM 20~40:5 — 0.3 Sub-base Graded broken stone/ Slag 30 30~480:50 0.3 Subgrade — — 10~30:5 0.35 Main Factors Affecting Mechanical Behavior of LSAM Asphalt Pavement 2.1 Analysis of subgrade modulus In the analysis, the structure of pavement consists of 4+5+7cm surface layers, 30cm LSAM asphalt base and 30cm sub-base; while the other parameters remain unchanged, sub-base modulus ranges from 30Mpa to 480Mpa; under each selected sub-base modulus, the subgrade modulus increases from 10MPa to 30MPa.
It figures out how the base thickness affects the structural mechanics indexes of flexible base pavement, and the results are shown in Figure 5 and Figure 6.
Analysis of Influence of Base Structural Parameters on Mechanical Response of Asphalt Concrete Pavement[J].

Very significant feature of spinning is ability to produce components with high mechanical properties and high quality of surface layers.
Very significant feature of spinning is ability to produce components with high mechanical properties and smooth surface finish [3, 4].
Fig. 2 CNC roller paths Two variables, i.e. spindle speed and feed rate were considered as the experimental input factors.
In order to assure the statistical properties the runs were made in randomised order.
Metal spun and deep drawn part´s surface layers properties evaluation.

In extrusion process, the temperature, pressure, and flow channel structure are important factors of the propellant quality.
Compared inlet pressure of Fig.4 (a) with Fig.4 (b) and Fig.4(c), the inlet pressure field distribution changes much earlier in x axis and y axis, it is caused by large compression ratio.Fig.5 (a) shows that, the obvious pressure variation appears at the entrance of the fluid, which is unfavorable to stable extrusion of fluid and will affect the density and mechanical properties of propellant.
In the production process, all the factors must be considered.
Adjusting mold purposefully, tuning other parameters and optimizing process ensure propellant properties and dimensional stability.
[3] Qing-wen Wu,Research on the Rheological Properties of Sing-base Propellant Containing HMX and EC[dissertation]: TaiYan,North University of China,2010(in Chinese) [4] He-sheng LIU, Zhi-gang TU, Yan-ping SUN etc.

Mullite whiskers can be used for metal matrix composite and ceramic matrix composites to enhance the mechanical properties of materials.
Using scanning electron microscopic to observe the morphology of sintered products and EDS to characterize phase composition, and measure the thermal barrier properties of products. 3.
Thus, orthogonal experiments ultimately selectes the addition of fluoride is 10:1.5, 10:2.0 and 10:2.5. 3.3 Orthogonal experiment In conjunction with all the above experiments suggest that the major factors to affect mullite whiskers thermal barrier materials generated are particle size of raw-material, heating rate and the ratio of addition.
Based on these three factors, each of these factors to consider three levels, the orthogonal experimental of three factor and three levels has been done, and the orthogonal experiments are shown in Table 2 and Table 3.
Structureand properties of mullite a review [J].

Studies have shown that preheating temperature is one of the most critical factors affecting the life of the diecasting mould [6].
The main factors affecting hair include: the temperature difference between the mould surface and the ambient air, mould surface emissivity, and mould geometric characteristics.
Studies have shown that the heat transfer coefficient hcontact is mainly affected by factors such as interface temperature, interface pressure, interface roughness, and the types of materials on both sides of the interface [13].
Yu, et al., Influence of Processing Parameters and Heat Treatment on Mechanical Properties of Die-cast AZ91D Alloy, Special Casting & Nonferrous Alloys. 02 (2002) 27-28
Ma, et al., Effects of Processing Parameters on the Mechanical Properties of Die Casting AM50 Mg Alloy, Special Casting & Nonferrous Alloys. 10 (2005) 43-45+6

Therefore, the mechanical properties were improved due to the enhancement of fibre adhesion properties after treatment.
This treatment improves the mechanical properties of the reinforced composite.
Both treatments lead to partially eliminate the non-cellulosic components which could affect the adhesion properties of the composite.
This could explain the enhancement of the mechanical properties at 90 days.
Djelal et al. reported that a partial inhibition of the cement setting has been noted for sawdust-based mortars which affects the mechanical properties of the composite (Djelal et al., 2020).

Polyamides are a versatile family of thermoplastics that have a broad range of properties ranging from relative flexibility to significant stiffness, strength, and toughness.
Major properties such as resistance to chemicals, toughness, thermal stability, good appearance and good processability are key considerations that make nylon suitable for engineering plastics applications.
It affects the properties of machined material very much, because the verified nylon is thermoplastic material.
Fig. 5 The shapes of polyamide APA chips originated at the turning Summary The most important properties of the machining are its versatility and flexibility.
Zelenak et al: Comparison of mechanical properties of surface layers with use of nanoindentation and microindentation tests, Metalurgija (2012) [9] I.

Hence, the dedicated integral micro-porous structures and brittle mechanical properties of GDL and MEA cannot be preserved.
Consequently, the mass, heat, and charge transfer properties are changed [3].
Recently, Kusoglu [8, 9] found the material properties in PEMFC are temperature dependents.
Material Properties.
Table 2 lists the main material properties of components in the FEM model [5].

Introduction Ceramic tool materials have been widely used in dry cutting and high speed machining because of the excellent mechanical properties.
The hot-pressing technology parameters, including fabrication temperature, pressure and duration time, finally govern the mechanical properties of the ceramic tool materials under the condition of the same compositions.
Fabrication temperature and duration time significantly affect the mechanical properties and microstructure of Si3N4 matrix ceramic tool materials [1].
However, it is very difficult to optimize the fabrication parameters for the desirable microstructure and mechanical properties by experiments.
However, those simulation models are not coupled with the fabrication temperature, which is essential to the mechanical properties of ceramic tool materials by the effect of those parameters on the microstructure evolution during fabrication.

Mechanical Behavior of Assembled Steel Dampers with Optimized Shapes Baijie Zhu1,a, Tao Wang1,b* and Lingxin Zhang1,c 1Key Laboratory of Earthquake Engineering and Engineering Vibration, Institute of Engineering Mechanics, CEA, Harbin 150080, China abaijie_zhu@126.com, bwangtao@iem.ac.cn, clingxin_zh@126.com Keywords: Steel shear panel damper; yield stress contour line; shape optimization; assembled damper; mechanical properties Abstract.
The weld work has been significantly reduced and welding heat-affect particularly on the energy dissipater can be ignored.
Different axial force participation factors, i.e., 0, 0.25, 0.5, and 0.75 are considered.
The stress concentration should have a severely negative effect on the low cycle fatigue properties of dampers, and consequently result in the pre-matured failure.
The accuracy of the design formula for the yield strength and initial stiffness is further examined. 4.1 Material properties Steel with a nominal yield strength of 235 MPa, denoted as Q235, is used to fabricate the damper specimens.