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Projectile shape and mechanical properties of target material play very important role in perforating.
Bending deformation energy is caused by the global deformation of thin target and localized failure deformation energy is caused by compression and shear, which are the most important factors in analysis of energy dissipation.
As shown in Fig.6, the decelerations are affected by geometric characteristics of projectile, that is, shank diameter and CRH, and striking velocity.
So the shank diameter is the more important factor than CRH in the optimization design of projectiles.
Cellular Solids: Structure and Properties.

Balancing biological and mechanical properties by controlling porosity, pore size, shape and distribution is a vital demand in biomedical applications [6, 7].
Material properties were assigned to bone and implant as presented in Table 1.
Table 1 The mechanical properties for both natural bone and prostheses' components.
Mechanical properties of open-cell rhombic dodecahedron titanium alloy lattice structure manufactured using electron beam melting under dynamic loading.
Pre-clinical evaluation of the mechanical properties of a low stiffness cement injectable hip stem.

Introduction The effect of stress on impurity solubility is one of the simplest examples of a mechanical effect on the phase diagram of a material system.
It influences mechanical properties such as ductility [1] and crack evolution [2], electronic properties such as carrier density in semiconductors [3], and other phenomena, such as superconductivity [4].
SIMS and Hall effect measurements were used to characterise volume activation and electrical properties within the layer.
The correspondence with the results found in the studies of Bennett et al. and of Sugii et al. suggests that both equilibrium and metastable solubility are similarly affected by strain.
Likewise the large improvement factors for sheet B activation in sSiGe of ~5.4 and ~3.8 compare reasonably well with the theoretically predicted solubility enhancement factor.

This kind of model can effectively describe mechanical properties of incompressible material for hyper-elastic rubber under large deformation.
Initial position of crack and prediction of dangerous surface Owing to the special properties of rubber material, the deformation of rubber shock absorbers in the applications mainly reflected in the deformation of the rubber spring, and the deformation of metal parts is smaller.
Along with the load gradually increase, the self-contact of structure liable to happen, and the maximum strain which is beyond the scope of material properties lead to the result that the analysis is not convergence and the analysis force to terminate.
Based on the above analysis result, the region of rubber shock absorbers where the maximum main stress appear will be vulnerable to damage location in the process of actual using .There are many factors which affect the fatigue life of rubber components, such as the process of mechanical loading, vulcanization system, different reinforcement systems, work environment, different evaluation methods etc, and the actual destruction reason of the rubber shock absorber may be due to the compounded result of multiple loads.
Due to hyper-elastic properties of the rubber, it does not produce the plastic deformation.

The crystallization process of MgO-Al2O3-SiO2 glass-ceramics was investigated with X-ray diffraction (XRD), scanning electron microscopy (SEM), and other techniques; the discussion of breaking strength, thermal expansion coefficient and relevant properties at different sintering temperatures was also presented.
Introduction The substrate is the core component of computer hard disk, so its performance will directly affect the quality of hard disks.
The traditional NiP/Al substrate for the hard disk is difficult to meet the requirements of the development of new technologies considering the factors of strength, thermal properties, and surface properties.
Among a variety of glass-ceramics systems, the MgO-Al2O3-SiO2 material, which is mainly composed of cordierite crystal phase, reveals the relatively low dielectric constant and thermal expansion coefficient, high mechanical strength, and good electrical insulation properties.
This paper aims at investigating the preparation and properties of the MgO-Al2O3-SiO2 glass-ceramic with a view to obtaining practical materials for the hard disk substrates. 2.

Simulation and Optimization of the Camshaft Production Line Based on Petri Net Hongjun WANGa, Ting DONGb, Jing ZHANGc, Haiyan WANGd School of Mechanical and electrical Engineering, Beijing Information Science & Technology University, Beijing, China a wanghj86@163.com, bdjdongting@163.com, cfresh35@163.com, d asmylady@163.com Keywords: Camshaft production line; Simulation optimization; Petri net; eM-Plant.
The production line productivity and characteristic are affected by many practical factors of the workshop.
According to the properties of hierarchical modeling of eM-Plant, the simulation modal was established by using hierarchical modeling and setup methods of different objects.

Mining pipeline’s vibration can cause the pipeline leak, burst, fatigue damage, etc., which will affect the stability and reliability of pipeline systems, deteriorate working conditions and undermine system security, and even cause serious accidents and property damage [2].
For the pipeline to the lifting nodules, such as a special study of small vertical cantilever pipe vibration, it ignores the factors of the pipeline’s fluid impact, but we consider the frequency of the structure of the pipeline itself, or consider only the tube fluid and the pipe coupling.
Natural frequencies have been obtained under three conditions that stand for three coupling (internal fluid-pipe-outer fluid), two coupling and no coupling between fluid and pipe, then discuss relate difference on natural frequencies of lifting pipeline because various factors of transportation parameters and solid coupling effect result in.
At the same time, impact factor of natural frequencies in the same order also reduced, namely the greater the concentration of internal fluid of pipeline is, the more obvious difference of natural frequencies of pipeline considering effects on fluid-solid coupling and not considering coupling is; (3) impact factors in the different order are not the same, so that they can not be dealt with simply times.
[4] Han-IR Yoon，In-Soo Son，Sung-Jun Ahn．Free Vibration Analysis of Euler-Bernoulli Beam with Double Cracks [J]．Journal of Mechanical Science and Technology, 2007，（21）：476-485

Sled motorcycle model design is a comprehensive design gathering mechanical engineering, ergonomics, aerodynamics and color design.
Sled motorcycle, a winter entertainment tool, has had great popularity with people in recent years, and it has dual-property, both material goods and art works.
Sled motorcycle aerodynamics research When sled motorcycle runs in air, air will exert a force to on its surface and the force will directly affect motorcycle sled’s performance.
Research results of Volkswagen AG suggest that an ideal shape with low drag coefficient looks like a dolphin, which is shown in Fig. 2, and its power factor is as high as CD = 0.06.
Color balance and stability should be combined with balance and stability factors of model shape to gain the overall’s balance image and stabilization effect

Thermoelastic martensitic transformation is a mechanical process as well as a phase transformation which may occur in response to either thermal or mechanical conditions.
For functional use in superelastic or shape memory application, the properties of shape memory alloys can be optimized by cold working, heat treatment or combination of both [3,10].
Dislocations and Ni-rich precipitates that are present in the material due to cold working and heat treatment process will affect the properties of Ti-Ni shape memory alloys.
From the above explanation, it is seen that the formation of Ti3Ni4 during ageing is a factor that greatly affects the formation of R phase.
Additional ageing time affects the amount and size of the Ti3Ni4 precipitates.

It is expected that the coagulant might be influenced the wet spinnability which is important because it affects strongly the mechanical properties of wet spun filament [5].
Recent reports have indicated that antimicrobial properties of AgNPs are significantly affected by their nanoscale dimensions [14, 15].
Mechanical properties of bio-fibers were measured using a micro 50 (Shirley, England) at a crossbar rate of 10.1 mm/min.
However with changing the spinning condition, the mechanical properties can be improved.
Among the various parameters that can be affected the spinning condition, this study is investigated the effect of coagulant types in mechanical properties of undrawn bio-fibers.