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The factors considered in this paper include hole shape, number, size and location.
Stress values, effects of each factor and interactions between factors are discussed in the paper.
Porosity affects the mechanical properties, for example Young's modulus drastically decreases with an increase in porosity.
Nakajima, Investigation of the mechanical properties of lotus-type porous carbon steel made by Continuous Zone Melting Technique, Mat.
Lucas, Mechanical properties of plant underground storage organs and implications for dietary models of early hominines, Evol Biol, 35 (2008) 159-175

However, there are more underlying factors to be considered for GFRP to be the alternative to metallic structures.
Understanding of the manufacturing process is important to determine the factors affecting the FWM performance like winding angle, material combination, geometric features, stacking sequence, the pretension of fire and the amount of resin on impregnation of fiber [1].
The failure mechanisms associated with the GFRP composite pipes was described within the properties considered and scope of the comprehensive study.
Complementary factors such as ultimate strength of pipes, type of supports, correction factors for thermal expansion, among others.
This advanced material is selected due to its superior mechanical properties and to overcome the corrosion issue of the metallic tubular structures.

One of the contributing factors to structural or functional failure of coatings is a mismatch of material properties between the coating and substrate at the coating/substrate interface.
Introduction Functionally graded materials (FGMs) are heterogeneous composite materials with gradual variation of the constituents (e.g. metallic and ceramic) from one surface of the material to the other which results in continuously varying material properties [1].
FGMs have a number of advantages that make them attractive in potential applications, such as a potential reduction of in-plane and transverse through-the-thickness stresses, an improved residual stress distribution, enhanced thermal properties, higher fracture toughness, and reduced stress intensity factors [2].
From the modelling point of view, FGMs represent a challenge since continuous variation of material properties leads to significant analytical and numerical difficulties.
The input file is consisting of the defined geometry, type of material properties, applied forces and boundary conditions.

Nevertheless, the chemical composition of marble, containing CaCO3 and SiO2, contributes positively to the mechanical properties of the concrete.
Properties of marble powder (MP) 3.1.
Mechanical Properties Table 4 presents the mechanical properties of previous research studies that have investigated the inclusion of MP as a replacement material in concrete and mortar, summarizing key findings from the literature review on the subject.
Using up to 15% MP as a substitute for Portland cement improved mechanical properties.
Kalaiyarrasi, Mechanical and durability properties of self-compacting concrete with marble fine aggregate.

The materials used are AA 8011 and AA 6061.The factors compared in this process are the weld quality, different welding feed and rotation speed.
This is mainly due to the presence of mechanical properties which are superior to plasma arc welding. 1.
Defect free welds with superior mechanical properties have been made in a variety of aluminum alloys.
Okitsu (2013) ‘Microstructure and mechanical properties of dissimilar Al alloy/steel joints prepared by a flat spot friction stir welding technique’, Vol.47, PP. 350–357
Chen(2013) ‘Microstructural evolution and mechanical properties of dissimilar Al–Cu joints produced by friction stir welding’, Vol.51, PP. 466–473

There are many factors affecting the seamline stress and resulting in the crack, and the influencing factor and the relevant influence parameters vary along the environment and condition.
It can ensure the long-term and reliable mechanical properties and realize the operating safeties of the bridge after broaden
The uncertain parameter affecting the seamline stress is complex.
To make reasonable design method, it is necessary to study these factors.
The factors influencing the performance of the seamline are various and influence with each other.

Hydrogen degrades the mechanical properties of most structural metal materials, especially steel.
The mechanical properties were determined by the notch impact test.
Hydrogen has a negative effect on the mechanical properties of steels, and hydrogen embrittlement (HE) occurs.
The effect of saturation time on the mechanical properties of the material was monitored using a notch bend test.
Laureys, et al., Use of existing steel pipeline infrastructure for gaseous hydrogen storage and transport: A review of factors affecting hydrogen induced degradation.

However, it suffers from several deficiencies like severe hot crack tendency and relatively low mechanical properties as compared to aluminum alloys.
The corresponding room temperature tensile properties of the alloys were also tested.
The results indicate that trace Cu addition could dramatically improve the casting properties and tensile performance of the ZK60 alloy.
The increased number density of the main strengthening β1΄ rods could be ascribed to the following two main factors: (1) Higher solute concentration can be attained in the aged ZK60-Cu alloy due to the elevated solute solubility at a higher solution temperature.
Conclusions The addition of trace Cu (0.5 wt.%) could effectively improve the casting properties of the alloy ZK60.

Based on the powerful data processing capabilities of GIS, the risk of sand inrush caused by multiple factors are analyzed quantitatively, and sand inrush risk zoning map was also analyzed eventually.
Sand inrushing mechanism and influencing factors is different from mine water hazard, to be treated as an independent mine geological disasters.
The calculation results of safety pillars in mining Coal Seam 2 Hierarchical name The width of waterproof pillar /m The width of coal pillars for quicksand /m 21 Hsh1≥36.24±4.0 Hs1≥19.59±1.5 22 Hsh2≥39.40±4.0 Hs2≥22.24±1.5 23 Hsh3≥40.63±4.0 Hs3≥23.53±1.5 24 Hsh4≥41.29±4.0 Hs4≥24.3±1.5 Risk Evaluation of Sand Inrush of GIS Mining sand inrush is affected by the compound impact of mining, engineering geology and hydrogeology, and many other factors arising from the complexity of nonlinear engineering geological process performance, water-bearing unconsolidated strata under the conditions caused by the collapse of the sand factor[5,6] is expressed as follows eq.(5): （5） : the cumulative mining thick overburden failure is highly expected results, the roof mudstone content, aquifer water abundance, the water-bearing unconsolidated strata thickness, water-head height, the thickness of
According to Overburden failure height, the safety of coal and rock pillars height, and protective layer thickness calculated results as a safety threshold, Comprehensive analysis of drilling information, the various factors to establish the research required for the graphics library and property database, each express a thematic content for the layer, to quantify the factors in GIS, spatial registration, overlay analysis, and in a different color grayscale graphics on the expression values or property changes [8,9].
(In Chinese) [7] Xiang YF: A mechanical model for the water inrush of collapse pillars.

Introduction To describe a forging process with the aim of linking fatigue life approach to microstructure, numerous process influence factors must be considered through the whole hot-forging process.
For hot-forged superalloy 718 components, especially at elevated temperatures, the derivation of dynamic fatigue strength based on static properties is in common not possible.
Main output of this step is a table containing geometric shape properties of each detected particle.
A selected number of independent geometric particle properties are used for further processing [6].
The strain fatigue life was calculated for each element as achieved by the Deform®-output of the user-defined microstructural element properties.