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Riveting connection is extensively applied in aircraft structures, and riveting quality is an important factor affecting safety and fatigue performance of aircraft.
The riveting die angle apparently exerts an influence on the material flow, which further affects the stress and strain distribution.
The laminate material is the TC4 (Ti–6Al–4V) titanium alloy, which is widely utilized in aerospace and other weight critical applications due to its superior properties, such as high specific strength, etc [8,9].
The rivet is fabricated from TC16 (Ti-3Al-5Mo-4.5V) alloy, which is a kind of martensite strengthening (α + β) titanium alloy with good mechanical and processing properties, such as hot deformability, machine workability and corrosion resistance.
Due to the properties of low heat conductivity and high adiabatic shearing sensitivity, ASBs, an important thermoviscoplastic instability mode in metals processed at high strain rates, are easily observed in titanium and its alloys [12].

Introduction Cavitation erosion is a major failure form of fluid machineries, which seriously affects the work reliability, efficiency and lifetime.
Scientists has done a lot of works with regard to cavitation erosion mechanism[1], analysis of cavitation flow field[2], cavitation-erosion resistance of materials[3], cavitation erosion factors[4], and bubble dynamics[5], etc.
The magnetostriction apparatus is widely used as an important measure to determine the cavitation-erosion resistance properties of materials and explore the cavitation erosion mechanism.
To resolve the problem, considering the vibration with a very small amplitude, a spring-base smoothing method for all cell types with the spring constant factor of 0 was employed to update the grids in this case.
Yu, Journal of Mechanical Engineering. 47 (2011) 167-173.

Due to constant exposure to high torque and loads toughness, compressive durability and light weight of joint parts are crucial factors for biped walking humanoid robot parts.
When polymer transmission parts are used for the manufacture of humanoid robot joint, wear becomes an important factor in terms of transmission error (backlash) between the input and output axes, ex. between the motor and the robot’s leg joint.
Joints with poor transmission accuracy or failing elements significantly affect the robot’s performance, regardless of the control system quality.
With its excellent friction and wear properties, high impact durability, high corrosion resistance, low specific gravity, high melting temperature of 340˚C, glass transition temperature of 143˚C and heat deflection temperature of 195˚C, PEEK composite is superior to other polymers.
This results show that PEEK bush roughness as tribological property is strongly related to the backlash as mechanical performance.

Introduction The increasing need to use the technological properties of materials with special reports are increasing use the thermal spray coatings [1].
The application of coatings is widely used in industry as a way to prevent wear of mechanical components [1].
It is among the different types of wear that affect the performance of different industrial processes.
The mechanical behavior was assessed via measures of micro-indentation hardness, using a microhardness tester (Futuretech – Model.
This resulted in greater mass loss, although this material offers greater mechanical strength.

Mechanical properties and construction of the forming mechanism of these types were verified under the static load.
Design and construction phase for cable domes is more, complex conditions, multiple factors.
Errors lead to the final molding of the prestressed values ​​and ideals of deviation, the mechanical properties of the structure have been changed to some extent.
Wind tunnel test model needs scale, whose environmental factors to be considered was not comprehensive enough.
Air temperature model study, structure and component temperature study, high temperature mechanical properties of the overall structure study, the whole stability study and fire resistance study for cable dome structure are necessary.

Modification of Biomaterials Applications of Natural Extracellular Matrix      Natural extracellular matrix not only provides structural support, but also mediates cell anchoring and behavior of growth factors and signal peptides.
All of the spatial structures of the extracellular matrix, the ultrastructure, surface morphology, density and the biochemical properties determine its mechanical properties, reactivity to cells and subsequent tissue construction.
Biomaterial Functional Modification by Protein or Peptide     Biomaterial functional modification by proteins or peptides should consider both the type of biomaterial as well as the, properties of the proteins or peptides.
[42] Bunting S., Moncada S., Vane J.R.: Antithrombotic properties of vascular endothelium.
[50] Avci-Adali M., Paul A., Ziemer G., et al: New strategies for in vivo tissue engineering by mimicry of homing factors for self-endothelialization of blood contacting materials.

Thus, the structure of boxes is an important element affecting the resistance capacity of boxes [1]
The changing of relative humidity affects the moisture content of box [3], and the moisture content of boards affects the contraction and expansion of paper boards
Reserch on Associated Factors with Structure Strength of Corrugated Cartons[J].
Influence of Enviromental Humidity on Mechanics Properties of Corrugated Fibreboard［J］.
Changes of Mechanical Properties of Corrugated Box during Storage［J］.

Introduction In order to overcome the brittleness of the intermetallic compounds at room temperature and increase its toughness, multilayer material is obtained by the overlapping of metals and intermetallic compounds by a certain ratio of layer spacing and layer thickness, the small interlayer spacing and multi-interface effects can make the properties of this material having layered structure be superior to the corresponding monomer[1,2].
For multilaminate materials, its interface is an important factor on its structure and performance.
The groove angle of the interface also affects the stability of the interface between the layered materials.
Conclusions For the Ti / TiAl multilaminate material prepared by a process of physical vapor deposition with electron beam, after high-temperature annealing, its microstructure shows a degraded state, with the increment of annealing temperature, because the diffusion of Al element to Ti layer aggravates, the content of an orderly phase reduces; holes formation is affected by the two factors of the stress changes caused by the temperature and Kirkendall effect during diffusion process; the grain growth is affected by the temperature and time, and it will lead to the roughening and even disappearing of the interface.
Microstructure and mechanical properties of laser melting deposited γ-TiAl intermetallic alloys.

Luis1,b 1 Mechanical, Energetics and Materials Engineering Dept. - Manufacturing Engineering Section Public University of Navarre, Campus de Arrosadia s/n, 31006.
This process is a new technique used to obtain an improvement in the mechanical properties, such as higher yield stress, higher ultimate tension, more ductility, higher elongation, etc, of the processed materials.
These improvements on the mechanical properties are based in the metallographic grain refinement, as a consequence of the plastic strain accumulation inside the material [2].
This study is interesting in order to know the accumulated strain, because it would be one of the principal factors that affects in the posterior heat treatment.
Puertas, Mechanical behaviour of an Al-Mg alloy processed by ECAE, The 21st international manufacturing conference IMC 21,2004, Vol. 1, p.167-174, Ed.

Slurry flow visualisation of chemical mechanical polishing based on a computational fluid dynamics model Y.B.
The contact mechanics models assumed that the wafer and pad were in direct contact during the polishing process and the material removal rate was mainly influenced by the polishing pressure, pad and wafer physical properties and their interactions [5].
However, the increase of the pad rotational speed significantly affected the velocity vector field, referring to Figs. 3 (a), (d) and (e).
This can be explained by the Preston material removal model which is related to the polishing pressure, relative velocity of the pad and wafer and a constant that accounts for the other factors such as the interactions effect or chemicals [13].
Tanaka: Transactions of the Japan Society of Mechanical Engineers, Part B, Vol. 73 (2007), p1806