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The fatigue property will affect the life span of the bogie and the travelling crane safety of the vehicles [2~3].
Among the influence factors, residual stress is one of the factors that affect the joint fatigue life [6-7].
The test material is 16MnR, the chemical composition and mechanical properties was shown in Table 1 and Table 2.
Among the three influence factors, the residual stress contributed to fatigue life may be around 16%.
References [1] Lixing Huo: Fracture Properties of Welded Structure and Evaluation.

The mechanical properties of hybrid fibre reinforced HPSCC (HFHPSCC) after heating were better than that of mono-fibre reinforced HPSCC.
The factors of flexural behaviour ffct,L, D f BZ,2, feq,2, D f BZ,3 and feq,3 are calculated based on RILEM TC 162-TDF [14].
[3] DONG X.: Research on Mechanical Properties and Spalling Behaviours of FRHPC Subjected to High Temperature and Fire, Ph.D.
[6] DONG X. and DING Y.: Mechanical properties of SFHPC after high temperatures, Journal of Southwest Jiaotong University (English Edition), 15 (1) (2007) 12-19
Fire Safety Journal, 39 (2004) 89-103. [12] WU B. et al: Effect of High Temperature on Residual Mechanical Properties of Confined and Unconfined High-Strength Concrete.

Mechanical Properties and Crack Propagation.
It is necessary to discuss the factors affecting the Young modulus, the bending strength, the fracture toughness and the fracture work qualitatively.
Lina, Structure and mechanical properties of selected biological materials, J.
Rouxel, Tape casting of Al2O3/ZrO2 laminates: Processing and Mechanical Properties , J.
Zheng, K.H Zhu, Analysis of mechanical properties and SEM for laminated SiC/W composites.

The smaller MgO particle sizes has better mechanical properties for the cutting tools [2].
The properties of the cutting tool, for instance, ZMN cutting tool is harder than ZMM cutting tool, is one of the factors that influenced the wear value to be lowered.
The factors such as micro-structural features, densities and hardness are important properties that greatly influence the wear performance of ZTA-MgO cutting inserts [2].
The factors such and microstructural features, densities and hardness of the cutting tool improve the mechanical and wear performance [2].
Effect of MgO particle size on the microstructure, mechanical properties and wear performance of ZTA–MgO ceramic cutting inserts, Int.

Metal welded bellows are a spring component of the mechanical seal.
It acts as an abirritation (shock absorber) in the Mechanical seal.
(a) (b) (c) (d) (a) V shape wave (b)U shape wave (c) S shape wave (d) cross section of S shape bellow in practice Fig3 Shapes of the bellow wave The mechanical properties of the metal welded seal are strongly affected by the structures of the wave.
All the other information was obtained locally and the cells communicated each other via diffusion of local factors.
Book .Bellow in mechanical seal。

The different parameters that could affect the natural frequencies are included as factors (aspect ratio, thermal load-to-shear coefficient, ply orientation) to better perform dynamic analysis to have a good understanding of dynamic behavior of composite beams.
The constitutive relations of the laminated beam can be expressed using the generalized Hook’s law as follows [1]: (3) where: (4) And K is the shear correction factor.
The shear correction factor K is taken as 5/6.
To validate the present work, a comparison is made between our results and those taken from Ref. [5] by using the same material and section properties.
Mechanical behavior and structural analysis.

The instrumented nanoindentation technique is widely used to investigate the local mechanical properties of cementitious composites.
It is important to understand the relationship between local mechanical properties and nano-scale system in order to enhance the properties of both cement and concrete.
Hertzian contact or finite element model) to obtain the mechanical properties of the material.
Hence, numerical simulation enables replication of the indentation process in order to gain an understanding of the mechanical properties of the material.
The mechanical properties (E and H) calculated from the models with single phases (homogeneous) are comparable with the experimental findings. 2.

Introduction As can be found in the literature, the miniaturization of forming processes is affected by several different factors [1].
These factors were considered as two of the main influencing factors, because - the ratio dK / s0 affects the strength of the material.
These two maxima are affected in different ways by the influencing factors in the experiments, so that the combined process of deep drawing and ironing is very helpful for the identification of relevant factors.
Fujita: Effect of Specimen Thickness on mechanical Properties of polycrystalline Aggregates with various Grain Sizes, Acta Metallurgica, Vol. 27, pp. 855-862, 1978 [6] S.
Fujita: Effects of Grain Size and Specimen Thickness on Mechanical Properties of Polycrystalline Copper and Copper-Aluminum Alloy, Trans.

The Effect of Layers and Bullet Type on Impact Properties of Glass Fibre Reinforced Polymer (GFRP) Using A Single Stage Gas Gun (SSGG) S.N.A.
The ability of these materials to absorb energy elastically depends on the mechanical properties of the matrix and fibres, the interfacial strength, the velocity of impact and the size of the component [8].
The energy-absorption behaviour of composite materials is affected by a number of factors.
These factors may be classified into composite materials and properties, fabrication conditions, geometry and dimensions of the structural components and test conditions [9].
Summary From the analysis, it can be concluded that number of layer affect the impact properties of GFRP.

The resulting coverings have excellent puncture resistance and acoustic absorbing properties.
Three types of plain woven fabrics—glass fabric, Kevlar fabric and carbon fabric, were supplied by Jinsor-Tech Industrial Corp., Taiwan, and their mechanical properties were listed in Table 1.
Results and Discussion Puncture-Resisting Properties of Wall Covering Composites Figure. 1.
The density and fineness of compound fabrics affect the flow resistance[4], which is responsiblefor difference acoustic absorbing property of compound fabrics.
Although C-CF has the highest absorption coefficient, its thickness is two factors of improvement for others.