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Chen et al. [6, 7] discussed the critical stress intensity factor in modes I and II fracture resulted from specimen propagation with various V angles and processing methods and found the critical stress intensity factor in mode I fracture being affected by the depth of the same V angle that could be the failure criteria.
As the structure with the wedge angle under mechanical or thermal loading, the stress at the apex of the wedge structure can appear the infinity.
Table 2 shows the material properties for PMMA and CFRP.
Yang, Stresses near the edge of bonded dissimilar materials described by two stress intensity factors, Int.
Munz, Stress singularities in a dissimilar materials joint with edge tractions under mechanical and thermal loadings, Int.

Therefore, it is necessary to study the mechanical characteristics of the crack tip near the interface.
No mater in what kind of structure, the interfacial behaviors of materials have great influence on the composite structure's mechanical properties.
The characteristics around the interface severely affect the interfacial mechanical behaviors.
Whereas the steel property is different with that of concrete, we get 22 22σ σ + − ≠ .
Stress Intensity Factor.

Graphene infusion enhances conductivity and mechanical properties, altering microstructure and inducing twin boundaries in copper grains.
Table 1 displays the electrical and mechanical properties of Cu, GrCu, AgCu wire.
Relatively, GrCu wire established extraordinary performances in mechanical properties, attributing from the formation of twin structure.
This grain refining improves the mechanical properties, however, reduces the electrical properties due to hindering of electron trespass.
Both factors collectively impacts wire durability and the resistant to deformation and stress, augmenting the mechanical strength of copper wire as illustrated in Fig. 4(b).

Guo2, b 1 School of Mechanical Engineering, Shandong University, P.
In actual practice, there are many factors which affect the surface roughness, i. e., tool variables, workpiece variables, cutting conditions, and so on.
The factors and levels were assigned in Table 1 according to the finish conditions for high-speed milling hardened H13 steel.
The work material was thoroughly hardened and tempered to 50 ± 1HRC, whose normal chemical composition and mechanical properties are given in Tables 3 and 4, respectively.
In this present work, the purpose of ANOVA is to investigate the significant factors affecting the performance measures and to facilitate the optimization of the machining process.

The thermomechanical properties are measured from Dynamic Mechanical Thermal Analysis (DMTA) while the dielectric properties are measured from Vector Network Analyser (VNA).
At certain temperatures there is a change in mechanical properties.
It is expected that incorporation of hybrd fillers will affect the thermomechanical and dielectric properties, compared to adding just single filler alone.
[3] Abenojar, J., et al., Erosion-wear, mechanical and thermal properties of silica filled epoxy nanocomposites.
Mishra, Synthesis, mechanical and thermal properties of carbon black/epoxy composites.

It is found that the presence of Al2O3 nano particle led to significant improve in mechanical properties, especially at addition of 0.5 Vf% Al2O3.
The porosity level tend to increase with increasing of Al2O3 and caused decrement in mechanical properties.
Ductility is an important factor, since the particle that used is very hard and brittle so the combination between two materials will improve the properties of aluminium.
The addition of alumina particles increases mechanical properties of matrix, especially at addition of 0.5 % Vf Al2O3.
Furthermore, alumina particles also impede the dislocation movement that improve mechanical properties of the composite.

Sprayed Alumina (Al2O3) coatings have the potential for improving the mechanical properties depending on the enhancements of physical properties resulting from the microstructure characteristics [9-11].
The data cover a wide range of parameters, including mechanical and thermo-physical properties, and similar and dissimilar ceramics contacts.
It affects the coating morphology and the mechanical properties of the coating (see fig 5). 4.
These factors include the experimental friction coefficient, contact pressure, sliding velocity, and material properties.
By considering multiple factors that can affect the temperature of contact, our model can help to optimize the thermal spray parameters and improve the performance of tribological systems. 4.

The degree of twist or torque in the yarn affects the final fabric properties; twist liveliness, or residual torque of a twisted yarn, is the most prominent and fundamental factor contributing to fabric skewness and surface unevenness of denim fabric.
The technique proposed a yarn torque reduction device on the conventional ring spinning system, by which yarn structure is modified and yarn twist is reduced to a great extent, without affecting the strength.
In addition, the mechanical properties of denim fabric produced by this torque-free spinning technique are similar to conventional denim fabric.
The factors and levels used in the orthogonal analysis were shown in Table 2 and nine test runs were required as shown in Table 3 [5, 6].
The optimum condition for enzyme treatment on denim fabric could be obtained by means of the orthogonal analysis which provides a convenient way of determining the optimum condition and level of importance of different factors in a treatment process [7, 8].

The mechanical properties obtained from smooth flat samples of the BM, in accordance with ASTM E 8M, were about: 740 MPa for yielding stress (0.2% offset); 809 MPa for ultimate strength; 669 MPa for rupture stress; 8.5% for elongation (in 25 mm length), 0.91 for yielding stress/ultimate strength ratio and 65 HRA hardness in the “as-received” condition.
Weld geometry factors.
Table 2 presents the main geometric factors affecting the fatigue resistance of a welded joint.
Table 2: Geometric factors of the weld bead.
Ph.D Thesis in Mechanical Engineering.

These changes are accompanied by improvement in properties of processed metals such as fatigue and fracture toughness.
Their impact on mechanical properties is also discussed.
However, some other mechanical properties, e.g. fracture toughness, fatigue etc. still need to be thoroughly investigated.
The mean size of particles is only slightly affected by HE.
Table 2 lists the stereological parameters such as E(deq), CV(deq), shape factors and CV(Av).