Sort by:
Publication Type:
Open access:
Publication Date:
Periodicals:
Search results
Online since: February 2012
Authors: Jia Shiun Chen, Hsiu Ying Hwang, Nguyen Quoc Nghiem
The mechanical properties and microstructure of sub-zones were studied.
There were many studies made to determine the mechanical properties.
Segger et al. [3] used scale factors to determine stress-strain curve of HAZ and FZ from the tensile strength of base metal.
Tested mechanical properties of SPCC steel.
The quenched specimens were tested to get the mechanical properties.
There were many studies made to determine the mechanical properties.
Segger et al. [3] used scale factors to determine stress-strain curve of HAZ and FZ from the tensile strength of base metal.
Tested mechanical properties of SPCC steel.
The quenched specimens were tested to get the mechanical properties.
Online since: August 2013
Authors: Hong Gang Yang, Hai Jun Yang
In the present paper, the mechanical properties and microstructure of the RFSSW joints of 6061-T6 aluminum alloys were investigated.
And welding time is found to be an important key factor which affects welding quality.
Shen et al. investigated the microstructure and mechanical properties of aluminum alloys joints joined by RFSSW [6].
Influence of rotating speed, plunge depth and welding time on mechanical properties is analyzed.
In RFSSW process, the mechanical properties of the weld are closely associated with welding energy and material flow.
And welding time is found to be an important key factor which affects welding quality.
Shen et al. investigated the microstructure and mechanical properties of aluminum alloys joints joined by RFSSW [6].
Influence of rotating speed, plunge depth and welding time on mechanical properties is analyzed.
In RFSSW process, the mechanical properties of the weld are closely associated with welding energy and material flow.
Online since: June 2014
Authors: Yan Yao, Ling Wang, Peng Du, Yin Cao
As the action mechanisms of various factors affecting concrete durability are different, it is difficult to understand the durability of concrete exposed to multiple factors using only mechanism analysis.
Concrete failure caused by non-mechanical factors is similar to that caused by loading.
This conversion allows us to establish a mechanical model for the durability degradation process of concrete exposed to multiple factors.
Table 3 PHYSICAL PROPERTIES OF CONCRETE AND LOADING STRESS LEVELS DURING FREEZE-THAW CYCLES Name.
By converting the freeze-thaw mechanism into mechanical effects on the concrete and then evaluating the synergistic effects of multiple factors, a multiple-factor damage model was proposed to characterize the relationship between strain and freeze-thaw cycles.
Concrete failure caused by non-mechanical factors is similar to that caused by loading.
This conversion allows us to establish a mechanical model for the durability degradation process of concrete exposed to multiple factors.
Table 3 PHYSICAL PROPERTIES OF CONCRETE AND LOADING STRESS LEVELS DURING FREEZE-THAW CYCLES Name.
By converting the freeze-thaw mechanism into mechanical effects on the concrete and then evaluating the synergistic effects of multiple factors, a multiple-factor damage model was proposed to characterize the relationship between strain and freeze-thaw cycles.
Effect of Direct Rolling of Without-Heating on the Differentiation of Mechanical Properties of Rebar
Online since: December 2022
Authors: Xu Ming Liu, Xin Liu, Bao Yu Song, Jun Sheng Wang, Yang Zhao
It was demonstrated that the DROW process could improve the mechanical properties of the rebar, but the difference in phase content and grain size distribution leads to a large variability in the enhancement of the mechanical properties of rebar rolled in different areas of the billet.
This article focuses on the factors affecting the mechanical properties of HRB400 rebar by the DROW process and gives suggestions for improvement.
Comparison of the mechanical properties of the rebars (a) average yield strength; (b) average tensile strength.
The final results showed the DROW process could effectively improve the mechanical properties of the rebar, but also increased the difference of the mechanical properties of the rebar in the axial direction.
(5) Although the DROW process increases the mechanical properties of the bars, it also increases the difference in the axial mechanical properties of the bars.
This article focuses on the factors affecting the mechanical properties of HRB400 rebar by the DROW process and gives suggestions for improvement.
Comparison of the mechanical properties of the rebars (a) average yield strength; (b) average tensile strength.
The final results showed the DROW process could effectively improve the mechanical properties of the rebar, but also increased the difference of the mechanical properties of the rebar in the axial direction.
(5) Although the DROW process increases the mechanical properties of the bars, it also increases the difference in the axial mechanical properties of the bars.
Online since: March 2020
Authors: Mohamad Ashry Jusoh, Syarifah Norsuhaila Syed Mahmud, You Kok Yeow, Fahmiruddin Esa
The use of blowing agent may affect the properties of the materials and directly alter the performance of resulting product.
The dielectric properties of sample are strongly affected by the structure of the composite.
Average value for dielectric properties of PolyOP with 6% filler loading Composite Dielectric Constant, e’ Loss Factor, e” Loss tangent , d PolyOP1 2.58 0.25 0.09 PolyOP2 2.31 0.09 0.03 The structural properties of composite will not affect because after curing the water will evaporate.
Lee, Effect of the blowing agent on the low-temperature mechanical properties of CO2 and HFC-245-blown glassfiber reinforced polyurethane foams, Compos.
Kim, Mechanical , Morphological , and Thermal Properties of Rigid Polyurethane Foams Blown by Distilled Water, J.
The dielectric properties of sample are strongly affected by the structure of the composite.
Average value for dielectric properties of PolyOP with 6% filler loading Composite Dielectric Constant, e’ Loss Factor, e” Loss tangent , d PolyOP1 2.58 0.25 0.09 PolyOP2 2.31 0.09 0.03 The structural properties of composite will not affect because after curing the water will evaporate.
Lee, Effect of the blowing agent on the low-temperature mechanical properties of CO2 and HFC-245-blown glassfiber reinforced polyurethane foams, Compos.
Kim, Mechanical , Morphological , and Thermal Properties of Rigid Polyurethane Foams Blown by Distilled Water, J.
Online since: July 2015
Authors: Yi Si
In these systems, Zr-based BMGs were extensively studied due to their excellent glass forming ability and mechanical properties.
However, these investigations almost focus on macrodeformation and mechanical properties, while microdeformation, mechanical properties and their affecting factors have little been investigated.
Nonaindention method is a new one of measuring mechanical properties in small region appearing in these years.
In terms of mechanical properties, hardness is increased with increase of anneal temperature, which had been proved in thin ribbons and BMGs[10,11].
(4) The contactedness of interior atomic-arranging, average freedom volumes and ordered structure of Zr-based BMG are the nature factors affecting their deformation and mechanical properties under a nanoindenter.
However, these investigations almost focus on macrodeformation and mechanical properties, while microdeformation, mechanical properties and their affecting factors have little been investigated.
Nonaindention method is a new one of measuring mechanical properties in small region appearing in these years.
In terms of mechanical properties, hardness is increased with increase of anneal temperature, which had been proved in thin ribbons and BMGs[10,11].
(4) The contactedness of interior atomic-arranging, average freedom volumes and ordered structure of Zr-based BMG are the nature factors affecting their deformation and mechanical properties under a nanoindenter.
Online since: December 2012
Authors: Li Na Chen, Rui Chao Xu, Fan Rong Kong
Comparative Study on Mechanical Properties of Jutecell, Cotton and Bamboo Fiber Knitted Fabrics 20
Lina Chen 1, a, Fanrong Kong 1, b, Ruichao Xu1,c
1 Department of Textile Engineering, Henan Institute of Engineering, Zhengzhou 450007, P.R.China
alina0305@126.com, bkongsiru243@163.com, crcxu@163.com
Keywords: Jutecell, cotton, bamboo fiber, mechanical properties.
The Tab.1 shows that the specification parameters of three types of fabric make little difference, at the time of testing the mechanical properties of them, they can be regarded as the same specifications.
Factors influencing the abrasion resistance of fabrics include: fiber characteristics, such as fiber length, fineness and cross-section shape; yarn properties, moderate yarn twist , uniform evenness.
The process of fabric pilling can be broadly divided into of rising, struggling into a hair-ball, shedding three stages; the pilling properties of the fabric can affect the garment's appearance and durability.
Conclusions The mechanical properties of jutecell fibers are the best, followed by bamboo fibers, and cotton is the worst.
The Tab.1 shows that the specification parameters of three types of fabric make little difference, at the time of testing the mechanical properties of them, they can be regarded as the same specifications.
Factors influencing the abrasion resistance of fabrics include: fiber characteristics, such as fiber length, fineness and cross-section shape; yarn properties, moderate yarn twist , uniform evenness.
The process of fabric pilling can be broadly divided into of rising, struggling into a hair-ball, shedding three stages; the pilling properties of the fabric can affect the garment's appearance and durability.
Conclusions The mechanical properties of jutecell fibers are the best, followed by bamboo fibers, and cotton is the worst.
Online since: July 2007
Authors: Yi Wang, Xing Dong Zhang, Hong Song Fan, Zhong Wei Gu, Xian Tao Wen, Yu Mei Xiao
The results show that the evaporation rate of the solvents is
the most important factor affecting the final properties of the scaffolds.
In this article, we addressed one important factor in the molding processing-the solvent used, to investigate its effects on the structure and mechanical properties of the as received scaffolds.
Mechanical testing.
Average particle size of PLA, HA dissolved in different organic solvents Solvents Average particle size of PLA (nm) Average particle size of HA (nm) dichloromethane acetone chloroform 1,4-dioxane 368 273 2219 397 513 2354 925 708 There are three main factors affecting pores-generating process in our method, solvent evaporation and particle leaching help make micro pores while the foaming gas provides larger and interconnected ones.
The results suggest that the final properties of scaffolds are more affected by evaporation rate of the solvents.
In this article, we addressed one important factor in the molding processing-the solvent used, to investigate its effects on the structure and mechanical properties of the as received scaffolds.
Mechanical testing.
Average particle size of PLA, HA dissolved in different organic solvents Solvents Average particle size of PLA (nm) Average particle size of HA (nm) dichloromethane acetone chloroform 1,4-dioxane 368 273 2219 397 513 2354 925 708 There are three main factors affecting pores-generating process in our method, solvent evaporation and particle leaching help make micro pores while the foaming gas provides larger and interconnected ones.
The results suggest that the final properties of scaffolds are more affected by evaporation rate of the solvents.
Online since: May 2020
Authors: Svetlana Perepelkina, Karina Makhmudova, Pavel Kovalenko
Petersburg, Russia
asvetlana.yu.perepelkina@gmail.com, bkarinaria@yandex.ru, ckovalenko_p.p@mail.ru
Keywords: tensile test, mechanical properties of PLA, filling factor, 3D printing, fused deposition modeling.
Mechanical properties of 3D printed parts depend on various parameters and settings of 3D printing, such as layers’ thickness and height, shell thickness, filling factor, etc. [13-18].
Mechanical properties of 3D printed parts were investigated by Bellini et al. [19].
Es-Said et al. investigated the influence of layer orientation on the mechanical properties for the 3D printed parts [21].
The filling factors were 20%, 40%, 60%, 80% and 100%.
Mechanical properties of 3D printed parts depend on various parameters and settings of 3D printing, such as layers’ thickness and height, shell thickness, filling factor, etc. [13-18].
Mechanical properties of 3D printed parts were investigated by Bellini et al. [19].
Es-Said et al. investigated the influence of layer orientation on the mechanical properties for the 3D printed parts [21].
The filling factors were 20%, 40%, 60%, 80% and 100%.
Online since: October 2009
Authors: You Tang Li, Zhi Yuan Rui, Chang Feng Yan
There are many factors to
affect the fatigue life of component.
Influencing Factors of Fatigue Life and Mechanical Model Influencing Factors of Fatigue Life of Shaft.
There are many factors to affect the fatigue life of shaft with a circumferential notch.
The other class, such as geometrical factors, materials property, environmental conditions and other factors, which show in down line, can not be described by parameters.
Influencing factors to affect the fatigue Life of shaft Materials property Load forms Notched factors Manufacture factors Entironmental conditions Chemical constitution Hardness of material Wearability Loading frequency Loading amplitude Loading course Open angle Depth of notch Tip radius Assemble precision Manufacture precision Corrosion fatigue Heat fatigue Support forms Width of support Span of support Support conditions Dimension of notch Geometrical factors Shape of shaft Position factors Other factors Average stress Move form Lubricate condition Wear Friction and lubricity Fig.1 Influencing factors to affect the fatigue life of shaft Mechanical Model of Shaft for Life Estimation.
Influencing Factors of Fatigue Life and Mechanical Model Influencing Factors of Fatigue Life of Shaft.
There are many factors to affect the fatigue life of shaft with a circumferential notch.
The other class, such as geometrical factors, materials property, environmental conditions and other factors, which show in down line, can not be described by parameters.
Influencing factors to affect the fatigue Life of shaft Materials property Load forms Notched factors Manufacture factors Entironmental conditions Chemical constitution Hardness of material Wearability Loading frequency Loading amplitude Loading course Open angle Depth of notch Tip radius Assemble precision Manufacture precision Corrosion fatigue Heat fatigue Support forms Width of support Span of support Support conditions Dimension of notch Geometrical factors Shape of shaft Position factors Other factors Average stress Move form Lubricate condition Wear Friction and lubricity Fig.1 Influencing factors to affect the fatigue life of shaft Mechanical Model of Shaft for Life Estimation.