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Online since: October 2014
Authors: Marcin Kluczyk, Bogdan Szturomski, Andrzej Grządziela
The essence of the problem is not the methodology of calculation but knowledge of damping coefficients, the influence of different types of seabed, effects of waving and other factors in the model of detonation.
Stiffness matrix K reflects the material properties of the element and geometry.
The nature and mechanism of the explosion is determined by numerous parameters, which include: • material properties (physical, chemical stability, heat of combustion, etc
Folęga, The study of the dynamic properties of some structural components of harmonic drive, Journal of Vibroengineering, 15(4) (2013) 2096-2102
Węgrzyn, The influence of nickel and nitrogen on impact toughness properties of low alloy basic electrode steel deposits.
Stiffness matrix K reflects the material properties of the element and geometry.
The nature and mechanism of the explosion is determined by numerous parameters, which include: • material properties (physical, chemical stability, heat of combustion, etc
Folęga, The study of the dynamic properties of some structural components of harmonic drive, Journal of Vibroengineering, 15(4) (2013) 2096-2102
Węgrzyn, The influence of nickel and nitrogen on impact toughness properties of low alloy basic electrode steel deposits.
Online since: March 2007
Authors: Kiyotomo Nakata, Kazuhiko Kamo, Masatoshi Sato
The mechanical property tests, such as tensile, impact, side bend and hardness,
were carried out after the repair-welding.
From the results of mechanical properties, the weld metal of low alloy steel could be welded up to a He concentration of 12.9 appm, while the base metal could be done up to only 1.7 appm He.
Mechanical property of repair weld joint was investigated with test specimens according with Figure 4.
Appropriate repair welding conditions for irradiated material show in Table 7 so that repair weld joint is free from cracks and serious porosities and have mechanical properties of which satisfy with criteria of rule.
But a lot of porosities occurred and damaged mechanical property in case of 60 years' irradiation (He 9.7-10.1appm)
From the results of mechanical properties, the weld metal of low alloy steel could be welded up to a He concentration of 12.9 appm, while the base metal could be done up to only 1.7 appm He.
Mechanical property of repair weld joint was investigated with test specimens according with Figure 4.
Appropriate repair welding conditions for irradiated material show in Table 7 so that repair weld joint is free from cracks and serious porosities and have mechanical properties of which satisfy with criteria of rule.
But a lot of porosities occurred and damaged mechanical property in case of 60 years' irradiation (He 9.7-10.1appm)
Online since: July 2013
Authors: J. Paulo Davim, Nikolaos M. Vaxevanidis, Aggelos Koutsomichalis, John Kechagias, Nikolaos A. Fountas, Ioannis Ntziantzias
The thermal and mechanical properties of the test material are summarized in Table 2.
Identification of process parameters In general, factors affecting quality objectives in turning are feed-rate, spindle speed, cutting speed, depth of cut, geometrical and mechanical properties of the material, configurations of the machine tool and cutting tool, cutting fluid, rigidity and machine tool stability, etc.
Main effects plots represent the state of influence of the factors on the responses.
In contrast, in several cases the lines show a strong tendency to interbreed while being extended, confirming the existence of significant interactions among the factors affecting cutting forces; therefore these interactions should be taken into account when formulating the corresponding response models.
Fig. 11: Influence of factors of stochastic models on the responses of cutting force component 5.2.
Identification of process parameters In general, factors affecting quality objectives in turning are feed-rate, spindle speed, cutting speed, depth of cut, geometrical and mechanical properties of the material, configurations of the machine tool and cutting tool, cutting fluid, rigidity and machine tool stability, etc.
Main effects plots represent the state of influence of the factors on the responses.
In contrast, in several cases the lines show a strong tendency to interbreed while being extended, confirming the existence of significant interactions among the factors affecting cutting forces; therefore these interactions should be taken into account when formulating the corresponding response models.
Fig. 11: Influence of factors of stochastic models on the responses of cutting force component 5.2.
Online since: June 2021
Authors: Feng Wang, Dan Peng, Qiu Hong Mu, Jin Hui Li, Shuo Zhang, Wei Ju
The effects of feeding order on properties of cured silicone resin were studied in detail.
Table 3 presented the mechanical properties of cured block copolymers prepared by three strategies.
It could be found that even if the proportion of D and T in the structure was the same, there was a significant difference in the mechanical properties because of the different feeding order.
Table 3 showed the changes of the mechanical properties and Mc of cured copolymer before and after radiation.
Fig. 4 SEM images of the cross section of the silicone resin before (a) and after (b, 1500kGy) radiation Conclusions The structure, mechanical properties, Tg and initial thermal decomposition temperature of cured block polysiloxane were greatly affected by the feeding order of phenylsesquioxane and silanol end-capped PDMS.
Table 3 presented the mechanical properties of cured block copolymers prepared by three strategies.
It could be found that even if the proportion of D and T in the structure was the same, there was a significant difference in the mechanical properties because of the different feeding order.
Table 3 showed the changes of the mechanical properties and Mc of cured copolymer before and after radiation.
Fig. 4 SEM images of the cross section of the silicone resin before (a) and after (b, 1500kGy) radiation Conclusions The structure, mechanical properties, Tg and initial thermal decomposition temperature of cured block polysiloxane were greatly affected by the feeding order of phenylsesquioxane and silanol end-capped PDMS.
Online since: May 2014
Authors: Ridtirud Charoenchai, Prinya Chindaprasirt
This research focuses on the effects of using both types of fly ashes on mechanical properties of geopolymer.
Starting off as by-products, but once combined with silicate solution or an alkaline hydroxide, they become useful geopolymer materials.The class and source of fly ash will affect geopolymerization reaction, dissolution behaviour, reactivity, and final physical and mechanical properties of the final products.
Addition of calcium compounds as a fly ash substitute improved mechanical properties in the ambient temperature-cured samples while weakening those properties in the elevated temperature-cured samples[3] Improving properties of geopolymer materials without relying on any materials other than the two fly ashes means that we can eliminate the need of additonal mixers, and truly and effectively utilize the residual fly ash.
The phases, positively affecting the compressive strength, can be raised using hydration without relying on heat to accelerate the reaction.
Temuujin, A. van Riessen, R.Williams, Influence of calcium compounds on the mechanical properties of fly ash geopolymer pastes, Journal of Hazardous Materials. 167 (2009) 82–88
Starting off as by-products, but once combined with silicate solution or an alkaline hydroxide, they become useful geopolymer materials.The class and source of fly ash will affect geopolymerization reaction, dissolution behaviour, reactivity, and final physical and mechanical properties of the final products.
Addition of calcium compounds as a fly ash substitute improved mechanical properties in the ambient temperature-cured samples while weakening those properties in the elevated temperature-cured samples[3] Improving properties of geopolymer materials without relying on any materials other than the two fly ashes means that we can eliminate the need of additonal mixers, and truly and effectively utilize the residual fly ash.
The phases, positively affecting the compressive strength, can be raised using hydration without relying on heat to accelerate the reaction.
Temuujin, A. van Riessen, R.Williams, Influence of calcium compounds on the mechanical properties of fly ash geopolymer pastes, Journal of Hazardous Materials. 167 (2009) 82–88
Online since: November 2013
Authors: Dong Wang, Chun Lei Feng, Jie Chen
Tensioning System Factors.
Anchorage Factors.
Other Factors.
Other factors mainly include the anchoring the soil creep and group anchor effect and external factors, but because of the uncertainty of the rock mass, it is hard to quantify.
Due to the creep properties of soil, soil anchor cable's anchorage segment creep can also cause stress of the anchor cable losses, especially in poor mechanical properties of soil.
Anchorage Factors.
Other Factors.
Other factors mainly include the anchoring the soil creep and group anchor effect and external factors, but because of the uncertainty of the rock mass, it is hard to quantify.
Due to the creep properties of soil, soil anchor cable's anchorage segment creep can also cause stress of the anchor cable losses, especially in poor mechanical properties of soil.
Online since: October 2014
Authors: Frank Kern, Rainer Gadow
By variation of the composite recipes a multitude of compositions can be produced which have mechanical properties tailored for individual applications.
Rate constants k were twice as high for ATZ15P, nucleation factors were also affected.
In Materials with TZP-matrix the stabilizer chosen also strongly effects mechanical properties.
Hoffmann, Relationship between microstructure and mechanical properties of silicon nitride ceramics”, Pure & Appl.
Yuan, In situ formation of LaAl11O18 rodlike particles in ZTA ceramics and effect on the mechanical properties, Ceram.
Rate constants k were twice as high for ATZ15P, nucleation factors were also affected.
In Materials with TZP-matrix the stabilizer chosen also strongly effects mechanical properties.
Hoffmann, Relationship between microstructure and mechanical properties of silicon nitride ceramics”, Pure & Appl.
Yuan, In situ formation of LaAl11O18 rodlike particles in ZTA ceramics and effect on the mechanical properties, Ceram.
Online since: December 2010
Authors: Jing Qiu, Rui Li Shen, Huai Guang Li, Xun Zhang
To take further research on mechanical properties and behavior of this type of structure, the proposed preliminary design of a cable-stayed suspension bridge with a main span of 1800m is analyzed.
These factors make the structure competitive for the extra long-span bridge design [4, 5].
Study the effect of structural parameters on structural static and dynamic properties As a composite structure, all the structural parameters of the cable-stayed bridge and suspension bridge may affect the static and dynamic properties of this structure.
The rational value of suspension-to-span ratio can be obtained based on all the factors taken into consideration, which include the layout of structure, mechanical properties, economic efficiency etc.
To select a suspension-to-span ratio, the following factors should be taken into account: the layout of the structure, mechanical behaviors, economic efficiency, etc.
These factors make the structure competitive for the extra long-span bridge design [4, 5].
Study the effect of structural parameters on structural static and dynamic properties As a composite structure, all the structural parameters of the cable-stayed bridge and suspension bridge may affect the static and dynamic properties of this structure.
The rational value of suspension-to-span ratio can be obtained based on all the factors taken into consideration, which include the layout of structure, mechanical properties, economic efficiency etc.
To select a suspension-to-span ratio, the following factors should be taken into account: the layout of the structure, mechanical behaviors, economic efficiency, etc.
Online since: February 2012
Authors: Zhi Feng Liu, Ji Bin Jiang, Shou Jin Zeng
From Figure1we know that the evaluation of remanufacturability is a comprehensive evaluation with several hierarchies and many factors.
The connection index is used to evaluate the properties of disassembly and assembly.
The quality assurance index is used to evaluate the properties of detection and test.
The damage repair index is used to evaluate the properties of replacement and repair.
The cleaning index is used to evaluate the cleaning properties.
The connection index is used to evaluate the properties of disassembly and assembly.
The quality assurance index is used to evaluate the properties of detection and test.
The damage repair index is used to evaluate the properties of replacement and repair.
The cleaning index is used to evaluate the cleaning properties.
Online since: November 2025
Authors: Jeremiah C. Millare, Carlo S. Emolaga, Erica Trisha T. Aranas, Juan Carlos Sayurin
Mechanical properties such as tensile and flexural strength and modulus, as well as impact resistance, however, did not exhibit significant improvements, which might also be affected by the variability in the natural fibers and the hand lay-up method.
Statistical analysis of the mechanical properties was carried out by one-way analysis of variance (ANOVA).
Mechanical Properties of the Nito Fiber-Epoxy Composite.
Figure 2 presents the dried Nito fibers, the fabricated Nito fiber/epoxy composite test specimens, and a summary of their corresponding mechanical properties.
The hand lay-up fabrication technique may also contribute to this variability, as it can influence factors such as fiber wetting, void formation, and the occurrence of delamination [14].
Statistical analysis of the mechanical properties was carried out by one-way analysis of variance (ANOVA).
Mechanical Properties of the Nito Fiber-Epoxy Composite.
Figure 2 presents the dried Nito fibers, the fabricated Nito fiber/epoxy composite test specimens, and a summary of their corresponding mechanical properties.
The hand lay-up fabrication technique may also contribute to this variability, as it can influence factors such as fiber wetting, void formation, and the occurrence of delamination [14].