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Introduction Toughness is one of important mechanical properties in structural applications of thermosets and has been an issue for improvement since 1970s [1].
When a cracked solid contains residual compressive stresses around micro-spheres as illustrated in Fig. 1, however, it is also affected and then manifested as non-linearity.
A crosshead speed of 10 mm/min was adopted for tests of the flexural properties and 0.5 mm/min for mode I fracture tests at a room temperature of 21°C.
Mechanical properties of ME and MEH epoxy systems.
Specific EXPANCEL fracture energy Flexural strength Elasticity modulus (phr) GIC (kJ/m 2) (MPa) (GPa) ME MEH ME MEH ME MEH 0 0.31 0.64 130.65 131.04 1.42 1.50 5 1.61 116.08 1.25 10 1.06 1.96 67.16 102.52 1.60 1.11 15 2.61 90.27 1.10 20 1.99 4.29 62.24 34.78 1.21 0.85 25 2.89 43.36 0.95 30 1.59 3.89 63.34 24.67 1.07 0.69 35 3.31 29.74 0.67 40 1.80 3.30 62.53 29.22 1.09 0.65 45 3.36 23.28 0.56 50 1.08 2.89 55.20 22.58 0.92 0.54 Results and Discussions Some mechanical properties for both ME and MEH series are given in Table 1.

Ageing mechanisms / factors affecting the lifetime behaviour of glass-ceramic-to-metal seals Many factors need to be taken into consideration in the successful design and manufacture of high quality glass-ceramic-to-metal seals if an adequate lifetime behaviour is to be achieved [1].
In the case of glass sealants partial crystallization during operation will lead to a change in thermal expansion characteristics or mechanical properties which may be detrimental to cell operation [44].
Similarly, for glass-ceramics, a change in crystalline morphology and the formation of voids during operation, as shown in Figure 7, may also affect the long-term properties [19].
Other factors affecting seal quality include of course the surface cleanliness of the starting materials and the amount of water dissolved in the starting glass.
Liu, Effects of crystallization on the high-temperature mechanical properties of a glass sealant for solid oxide fuel cell, J.

Introduction Titanium and titanium alloy has many excellent properties, such as: high strength, strong corrosion resistance, heat resistance, and good low temperature performance.
Because of the difference between the physical and chemical properties of titanium and steel, such as melting point, linear expansion coefficient, direct bonding of titanium to steel will produce a lot of intermetallic compounds at the interface, adversely affecting the bonding strength.
However, diffusion bonding is a good way to join dissimilar metals, it makes smaller macroscopic deformation, and will not cause damage to the mechanical properties of the base metal, however, the microstructure changes near the interface, the bonding strength is controlled by interface microstructure[2].
In addition to the diffusion temperature, another important factor influencing the microstructure and mechanical properties of joint is heat preservation time.
Fig. 11 Effect of diffusion temperature on shear strength Fig. 12 Effect of holding time on shear strength Conclusions The effect of diffusion bonding parameters on microstructure and mechanical properties of joints are studied.

Introduction Researches think that motivity is the most important factor of aviation development.
There will be incipient fault of flight safety if only some mechanical properities are developed but working condition mechanical and damage failure behavior of usage environment are lack.
In the course of item manage the main affect factor is usually technology venture.
Microscopic structure, composition, physical property are verified in laboratory, material preparing process is verified, material key property is confirmed. 4 Material property affect factors are studied in laboratory environment, material standard and process procedure of pilot-scale are formed primary The affect factors, usually defects, normal mechanical property and key property of material are studied, the fatigue damage behavior of typical test component or simulation component is studied, inspection and evaluation method of material are studied, material standard and process procedure are formed primary 5 Typical component is manufactured and verified in typical simulation environment Stability of material batch is verified; typical component passes simulation verification; The key property of material and typical component under typical simulation environment is studied. 6 Process of component is stable, component passes test verification of model machine or function verification
of material are confirmed 2 The affect rules of various elements are confirmed 3 The parameters of preparation process of material in the condition of pilot-scale are confirmed. 4 The common defects, type and influence to material property are represented. 5 Custom mechanical property(for example, σｂ, σ0.2, δ, φ, αk, E)of different batch are tested in laboratory environment 6 Key property of test component of different batch are tested in laboratory environment 7 Mechanical basic property of pilot-scale or semiautomation reach typical environment request 8 Material inspection characteristic is studied and the method of inspection and evaluation are given 9 The damage failure behavior of laboratory environment is studied. 10 Key preparation process is confirmed, parameters of preparation process of typical test component or simulate component are verified, test component or simulate component are made. 11 Key preparation process is assessed in the condition of laboratory environment 12

However, it cannot be removed after high temperature sintering, which will affect the thermal properties of the material.
Because most inorganic binders will not volatilize during high temperature treatment, there will be too much residue in the preform, which greatly affects the thermal and mechanical properties of the final product.
Infiltration temperature is an important factor affecting the interfacial reaction between SiC and Al.
Effect of SiC particle surface adsorbate on the preparation and mechanical properties of aluminum matrix composites.
Microstructure and thermo-mechanical properties of SiCp/Al composites prepared by pressureless infiltration.

A difference was found in changes in the stress intensity factor (KIC) and the compressive strength (fc) of concretes depending on nature of the surface roughness of the aggregates tested.
On the macrostructure level, the cement matrix – aggregate grains connection (ITZ) can be distinguished, which is a weak place in concrete and determines its physical and mechanical properties [1,2].
The article presents research and analysis limited to the mechanical adhesion.
Samples with dimensions of 4x8x36 cm with a 3 cm gap were used to determine the stress intensity factor (KIC) (I model of cracking according to RILEM).
And also it is affected by the shape of the grain surface and the coefficient of sphericity, which affects the grains packing in concrete, and the rheology of a concrete mix.

But the poor bond performance between inorganic filler and organic polymer material matrix has become a bottleneck[2] to restrict the improvement of bone scaffold mechanical properties.
The artificial bone scaffold pore size and mechanical properties can be adjusted by changing the binding layer thickness.
The mechanical properties of the materials are listed in Table 1.
Therefore, the Young's modulus of HA artificial bone scaffold reach the maximum and the mechanical properties is optimized when the adhesive layer thickness is .
This also shows that HA artificial bone scaffold's mechanical properties can be changed by adjusting the thickness of adhesive layer.

The revised criterion is adopted by API 1106 and CSA Z662 but different additional safety factors are added respectively [8,9].
The mechanical parameters can be calculated including stress, strain, stress intensity factor, J-integration, etc. can be calculated by utilizing finite element software such as ABAQUS and ANSYS.
Material properties Material mechanical properties include strength and fracture toughness data.
Welded joints are highly inhomogeneous in both microstructural and mechanical properties.
So the properties of the parent material, the weld metal, and the heat-affected zone (HAZ) need to be tested respectively.

Their excellent properties range from high temperature mechanical strength, toughness to resistance to degradation in oxidizing and corrosive environment.
The effects of alloying elements on microstructure, mechanical properties, thermal stability and processing characteristics of alloy are important factors.
In addition to that the modification on the content of Al and Ti developes the optimum mechanical properties of the alloy.
Another factor on the improvement of the mechanical properties and thermal stability is the addition of Co up to about 9 wt%.
Extensive studies demonstrated that this alloy has shown superior tensile and stress rupture properties to alloy 718 and comparable properties to Waspaloy at the temperature up to 704°C [11].

Residual stress of work piece surface is affected by both thermal and mechanical effects.
In the 1st report1), we have proposed a new technique for eddy current sensor to avoid misdetection caused by the dispersion of material properties of work pieces, and its effectiveness was confirmed.
It is well known that tensile residual stress is one of the most critical factors to reduce the fatigue strength of the work piece.
Figure 4 Schematic view of multi frequency measurement Figure 3 Influence of dispersion of material properties Multi Frequency Measurement and Disturbance Reduction Techniques.
From these results, we can state that machining heat was not enough to change the metallographic structure of each work piece, and the residual stress was strongly affected by the mechanical effect in this examination.