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The friction force is mainly affected by the relative velocity of two contact objects.
(a) Different motion velocity (b) Different contact condition (c) Different spring stiffness Fig. 3 Deviation of rotation angle with different factors The contact condition is the second factor that needs to be simulated.
Other factors are set as follows: the spring stiffness is 10 N/mm; the moving distance of ball is 1 mm with the velocity 0.1 mm/s.
It shows that the properties of contact surface are not important to the stability of rotation angle.
The simulation was executed to discover the dynamical performance of gripping motion based on three important factors.

Analysis on Live Load Distribution Factors of Widened Hollow Core Slab Bridges Zhang Lifang1,a*, Wang Ying1,b, Lei Yingge2,c, Chang Yun1,d 1Nanjing University of Aeronautics and Astronautics, China 2Xi’an Highway Institute, China azlf.zj@nuaa.edu.cn, b1059437161@qq.com, c645366821@qq.com, d1843620925@qq.com Keywords: hollow core slab bridges, widening, load distribution factors, span length, connecting stiffness, skew angle.
Zhao Bao-jun and Meng Jiang studied the live load distribution factors of hollow core slabs after widening with hinged and rigid connection by finite element analysis [6,7].
The number before ‘/’ represent the properties of middle slab section and the number after ‘/’ represent the properties of side slab section.
Live Load Distribution Factors for Spread Slab Beam Bridges.
Live-load Distribution Factors for Concrete Box-Girder Bridges.

However, the poor mechanical property has limited its application.
Some earlier studies showed that PSA with higher ratio of 4,4'-DDS segments performed better mechanical properties[3,4], and the thermal stability of the copolymers had little dependence on the copolymer composition[5].
As a result, increasing the ratios of 4,4'-DDS contents in the copolymer is a practical approach to improve the mechanical properties of PSA.
They were typical pseudoplastic fluid, temperature and shear rate affect a lot in their flowing property.
Zhang, Copolymer structure and properties of aromatic polysulfonamides, J.

Properties of laminated glass comprising two or more sheets of glass are greatly affected by the composite action of these panes which is influenced by material properties of used interlayer.
The basic properties of soda lime float glass are stated which specifies the chemical composition, the optical and mechanical properties.
The maximum acting load depends on the properties of used interlayer.
[2] prEN 16613, Glass in building – Laminated glass and laminated safety glass – Determination of interlayer mechanical properties, draft, 2013
[3] Machalická, K., Eliášová, M.: Influence of Various Factors on Mechanical Properties of Adhesive Joint in Glass Structures, In: Challenging Glass 3.

Improvements in the mechanical properties up to 15% SiCp was observed.
A key feature of the FDM process is its potential to fabricate parts with locally controlled properties such as porosity, density and mechanical properties [22].
Both were compared and the differences in solidification time and its affect on metal properties of the casting were reviewed.
The results indicate that the sand grain fineness number and amplitude of vibration were the control factors.
These factors affect both the mean and the variation of the bulk density of the V-process mould.

It was found that the behavior of bolted joints in composite structure is affected by many factors, such as geometry, joint material, clamping–load provided by the bolts, ply orientations, etc.
Accordingly, various researches have been conducted on the analyses of stress distribution, failure prediction, and strength properties of bolted joint both experimentally and numerically.
Factors Affecting Joint Strength Geometric Parameters.
In the analysis, many effects such as clamp-up, secondary bending and through-thickness stress could not be accounted for [44], and also inadequate to represent the true strength properties as the analysis could not take into account the effect of delamination buckling [41].
Bolted composite joint requires a huge task in modulating the different parameters that contribute to the mechanical properties of a comprehensive bolted joint design.

Ensuring proper quality and smoothness of mineral surfaces is important for: - obtaining the required physic - mechanical properties, which has a significant influence on the period of use and the costs connected with it, - keeping the surfaces clean, which reduces the cleaning/maintenance time, - esthetic and architectural aspects.
The factors that can cause raising or lowering the processing efficiency of grinding tools have been presented in the so-called factor analysis (table 1).
The factors that can cause raising or lowering the processing efficiency of grinding tools.
They influence the complex abrasive effect factor that is connected with the properties of the material and its amount, which is dependent on the geometry of the abrasive element.
Graphs of the efficiency distribution of affecting the processed strip L = D [m] by the new working tool with selected solutions of disc abrasive (grinding) elements.

The high piezoresistivity effect and sensitivity to stress are due to compositional and mechanical properties of polymer derived AlSiCN ceramics.
Introduction Polymer-derived silicon-carbon based ceramics with excellent high-temperature properties have a potential application of engineering materials in harsh environment[1-3].
Thus, we assume the electrical properties can also be understood through tunneling-percolation network model which have been suggested to properly describe transport properties of conductor-insulator systems in which tunneling coexist with percolation behaviors [6]. we reported for the first time [7] that polymer-derived SiCN ceramics also have very significant piezoresistive effect with gauge factors ranging from 1000-4000, which is much higher than that of any existing high-temperature materials.
Hence, to some extent,dopants modulate the electrical properties of Si-C-N ceramics[8].
Therefore, in this paper, we present our studies on the piezoresistive effect with Al doping to gain a basic understanding the electrical properties of polymer-derived ceramics.

The glued laminated timber (glulam) mechanical properties may be evaluated through the determination of the key mechanical properties of the lamellae that compose that element.
Even with a controlled manufacturing system and machine stress grading, defects must be assessed by visual inspection specially in the section near the loaded areas, since growth defects factors may have a more substantial effect in the failure development than strength factors such as modulus of elasticity (MOE) and modulus of rupture (MOR) [1].
The mechanical properties of glulam elements are correlated with the properties of the composing lamellae in order to obtain the strength class of the material.
Table 1: Characteristic values of the mechanical properties [MPa] and density [kg/m3] for homogeneous glulam elements [5].
Properties correlation functions were used to obtain the mechanical properties of the glulam elements regarding the properties of the composing lamellae.

Effect of Thermal Aging at Low Temperature on the Mechanical Properties and Corrosion Resistance of LDX 2404 Duplex Stainless Steel R.
It is well known that when duplex stainless steels (DSS) are subjected to temperatures ranging from 300 to 1000 °C they may undergo precipitation of several phases, which can seriously impair their mechanical properties and corrosion resistance.
The present work studied the effect of thermal aging (up to 2000 h) at 475 °C on the corrosion and mechanical properties of the newly developed 2404 DSS.
Their broad applicability is due to their combination of excellent mechanical properties and high corrosion resistance.
The precipitation of these tertiary phases can severely impair the mechanical properties and corrosion resistance of DSS [1-5].