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Introduction Composites present a range of advantageous properties, including – but not limited to – their light weight and excellent mechanical characteristics, that make them a sought-after material for the construction of aircraft structures [1,2,3].
As such, an array of factors in addition to the ones identified in the presented study can influence the specific results.
Gopal, in: Advanced Composite Materials for Aerospace Engineering – Processing, Properties, and Applications, edited by S.
Gibson: Fire Properties of Polymer Composite Materials (Springer, The Netherlands 2006)
[19] ASTM International: ASTM D3039/D3039M – 17: Standard Test Method for Tensile Properties of Polymer Matrix Composite Materials (2017)

Important of Durability and Stability Properties.
Lowering the temperature operational of SOFC application was main issues to increase the performance, mechanical properties and durability, reduce the manufacturing cost and prolong the SOFC components [6].
Porosity is one of the factors which determine the polarization resistance of the cathode due to depends on firing temperature.
Fig. 2, Electrode model, and reaction [1] Factors Influence Durability and Stability.
Materials usage and fabrication process are such a main factors due to successful development of high durability and stability SOFC.

The method obtaining local wear-resistant elements based on carbides, their introduction into the gasified casting, as well as the study the structure and properties the materials obtained are described in this article.
In this case, the phenomenon wettability of dispersed particles by a metallic melt is an inherent factor [6-8].
Cutting the castings was carried out to study the microstructure and mechanical properties.
This fact allows us to conclude that the method by which sample No. 1 was obtained is effective to create a gradient of properties in the local regions metal.
Jones: Grain boundaries: Their Character, Characterisation and Influence on Properties (Institute of Materials.

Composites based on graphene have shown improved mechanical strength, electronic conductivity, and electrochemical properties [4-6].
The obtained nanocomposites present markedly improved crystallinity, rate of crystallization, mechanical properties, electrical conductivity and fire resistance.
The properties are dependent on the dispersion and loading content of graphene, showing percolation threshold at 0.08 wt%.
Graphene reinforces the nanocomposites but cuts down the interactions among the polymer matrix, which leads to reduced mechanical properties.
However, the major drawback affecting the practical applications of SnO2 is its poor cycling performance caused by volume expansion during the charge-discharge process.

The goal of this manuscript is to review the effects of major process parameters on build quality (residual stress, composition changes) & material properties (micro structure)[1].
Many reaches is focused on the process parameters and their influences on the physical, chemical, and mechanical properties of fabricated parts in various additive manufacture process.
Time taken for producing each specimen is noted and factors effecting the time are judged based on their affect on the mechanical properties, part accuracy and production time.
Conclusions From the observations made from time analysis, part accuracy and Surface roughness it is possible that combination of parameters Layer thickness (50 micron), laser intensity level (-8), hatching strategy (45 degree) which are used to produce specimen 4 can produce parts with close dimensional tolerances utilizing optimal amount time.We also can check influence of these parameters on the mechanical properties through various tests thus determining best possible set of parameters to achieve required properties in the parts produced.
Lecture Notes in Mechanical Engineering.

Therefore, results from this study could potentially highlight an additional factor to consider, particularly focusing on the properties of the polymer matrix.
Yogesha, “Study on Mechanical Properties of Natural - Glass Fibre Reinforced Polymer Hybrid Composites: A Review,” Materials Today: Proceedings, vol. 2, no. 4, pp. 2959-2967, 2015
Basak, “A Review on Mechanical Properties of Natural Fibre Reinforced Polymer Composites under Various Strain Rates,” Journal of Composites Science, vol. 5, no. 5, pp. 130, 2021
Leman, “Mechanical properties of thermoplastic starch/oil palm empty fruit bunch biocomposite film,” in Proceedings of Green Design and Manufacture 2020, 2021
Tran, “Characteristics of oil palm empty fruit bunch fiber and mechanical properties of its unidirectional composites,” Polymer Composites, vol. 40, no. 3, pp. 1158-1164, 2019

By the material mechanics, the allowable stress is , and is yield limit for the chosen material, is the fatigue factor of safety, so the safety factor under maximum load and bending conditions is 3.5, its value is in a safe range.
Frame design using topology optimization Topology optimization techniques [7-8] is an emerging optimization design method, the goal is to improve the mechanical properties of the structure or to reduce the weight of the structure, and seek the optimal distribution in the form of structural materials.
Mechanical Design, 2007, 24 (6): 52-54 [6] Zhongxiong Hao.
Mechanical design and manufacturing, 2007 (7): 75-76 [7] A.
Mechanical design and manufacturing, 2007 (3): 138-139

With Yichang-Wanzhou Railway project being taken into account, this article systematically analyzes the control factors of geological hazard in tunnel construction including stratum, lithology, fold, rupture and groundwater seepage,etc, establishes hazard assessment index system, and induces the underlying principle and methods of index assignment.
During construction, the karst water inrush geological hazard is a critical factor that affects construction safety.
Analysis of geological controlling factors (1)Layer thickness Most of typical karsts in Qiyueshan, Yesanguan tunnels develop in medium thick or thick carbonate rocks.
Fracture structure directly affects karst development with different mechanical properties.

The latter’s properties rely on cohesion and plasticity criteria (Burroughs, 2001; Hall, et al., 2012) to be suitable for construction.
By the contrast, more weighed up factors witnessed in a rammed soil mixture point to workability and the binding issue.
A particular concept concerns dry density (Ciancio et al., 2014; Jaquin et al., 2009), which is affected by many factors; most importantly, compaction, the binding force of the soil minerals, the relative proportions measured between the soil particles and the aggregates (Burroughs, 2001) and, eventually, the water content, not exceeding 11% wet state upon compaction (Bui et al., 2014).
Effect of stabilisation on mechanical properties, moisture buffering and water durability of hypercompacted earth.
Mechanical properties of rammed earth with respect to clay mixture composition.

Introduction The differential settlement of ground in horizontal and vertical section is made prevalent in Subgrade Engineering by the factors such as the random difference of properties of soil (natural and artificial treatment) and differences between various types for foundation treatment and structure forms [1-3].
As theoretical values are not able to consider that the factors such as material property, the fiction and loss of additional stress are during the transmission within material.
Because calculated values are based on Boussinesq solution which are not able to consider the fundamental solution of material property.
Some experimentally based fundamental results on the mechanical behavior of granular materials.
Factors affecting stress cell measurements in soil.