Sort by:
Publication Type:
Open access:
Publication Date:
Periodicals:
Search results
Online since: January 2022
Authors: Zainal Arifin Ahmad, Abdul Rashid Jamaludin, Nik Akmar Rejab, Norazharuddin Shah Abdullah
These voids contain sharp corners of its triangular shape struts, and are known to initiate strut failures, which eventually affected the structure mechanical properties [11].
Mechanical Properties The compressive strength of the foams is shown in Fig. 3.
Medalist, The mechanical properties of cellular solids, Metall.
Kuo, Mechanical properties of Al2O3/ZrO2 composites, J.
Hakim, Structural and Mechanical Properties of Zirconia Toughened Alumina (ZTA) Composites, Int.
Mechanical Properties The compressive strength of the foams is shown in Fig. 3.
Medalist, The mechanical properties of cellular solids, Metall.
Kuo, Mechanical properties of Al2O3/ZrO2 composites, J.
Hakim, Structural and Mechanical Properties of Zirconia Toughened Alumina (ZTA) Composites, Int.
Online since: December 2010
Authors: Xing Wang, Fan Wang
Plate-cone reticulated shell has good mechanical behavior, technical economy and architectural appearance.
By analysing the internal force wind load factors of top members in the span direction of different rank’s cones in Figure3 and Figure4, the following can be obtained: 1) Along the span direction, wind load factors of top members change along with the shape factors.
According to the wind load factors of the above model, the wind load factors of this type of model are processed by comparing in this paper, the following wind load factors are recommended: The wind load factor of top member is suggested as 1.5.
Under the wind load, due to wind’s suction, deflection of the shell is reduced, the maximum deflections of the shell decrease to 10.12mm and 12.25mm. 5) The change of plate material has affect only on the local internal force of plate itself, but has little affect on the whole mechanical properties of shell.
The wind load factors of top members along the span direction range from 1.02 to 1.5, the wind load factors are larger where the shape factors are larger.
By analysing the internal force wind load factors of top members in the span direction of different rank’s cones in Figure3 and Figure4, the following can be obtained: 1) Along the span direction, wind load factors of top members change along with the shape factors.
According to the wind load factors of the above model, the wind load factors of this type of model are processed by comparing in this paper, the following wind load factors are recommended: The wind load factor of top member is suggested as 1.5.
Under the wind load, due to wind’s suction, deflection of the shell is reduced, the maximum deflections of the shell decrease to 10.12mm and 12.25mm. 5) The change of plate material has affect only on the local internal force of plate itself, but has little affect on the whole mechanical properties of shell.
The wind load factors of top members along the span direction range from 1.02 to 1.5, the wind load factors are larger where the shape factors are larger.
Online since: March 2021
Authors: Normariah Che Maideen, Salina Budin, Koay Mei Hyie, Nor Azirah Mohd Fohimi
Compared to the fusion welding, the FSW joints is simple, environment friendly energy efficient and usually exhibits superior mechanical properties in terms of strength and toughness [1].
Bayazid et. al. has review some of the findings from FSW research which discuss about processing parameters, microstructure, mechanical properties post weld heat treatment and defects [2].
Stirring tool is one of the important factors that will affect the quality of weldment.
Nelson, A review of friction stir welding of steels: Tool, material flow, microstructure, and properties, J.
Cayiroglu, A review on friction stir welding, parameters, microstructure, mechanical properties, post weld heat treatment and defects, Material Science & Engineering International Journal. 2(4) (2018) 116-126
Bayazid et. al. has review some of the findings from FSW research which discuss about processing parameters, microstructure, mechanical properties post weld heat treatment and defects [2].
Stirring tool is one of the important factors that will affect the quality of weldment.
Nelson, A review of friction stir welding of steels: Tool, material flow, microstructure, and properties, J.
Cayiroglu, A review on friction stir welding, parameters, microstructure, mechanical properties, post weld heat treatment and defects, Material Science & Engineering International Journal. 2(4) (2018) 116-126
Online since: March 2010
Authors: Vicente Tadeu Lopes Buono, Ana Cecília Diniz Viana, Maria Guiomar de Azevedo Bahia
Resistance to bending of NiTi root canal instruments depended on their geometrical shapes and
metallurgical properties, but the cross-sectional configuration can be seen as an important parameter
affecting this property.
Cross-sectional geometry, in particular, has been identified as an important design feature affecting torsion and bending properties [17, 18, 7, 4, 19, 20].
Thus, we verify that bending moments at 45 showed a good linear relationship with D3, but the cross-sectional configuration can be seen as a fundamental parameter affecting this property in all kinds of instruments.
The cross-sectional configuration seems to be the predominant factor affecting the bending properties of rotary K3, PTU and ES instruments.
However, the cross-sectional configuration was found to be the predominant parameter affecting this property in the instruments analyzed.
Cross-sectional geometry, in particular, has been identified as an important design feature affecting torsion and bending properties [17, 18, 7, 4, 19, 20].
Thus, we verify that bending moments at 45 showed a good linear relationship with D3, but the cross-sectional configuration can be seen as a fundamental parameter affecting this property in all kinds of instruments.
The cross-sectional configuration seems to be the predominant factor affecting the bending properties of rotary K3, PTU and ES instruments.
However, the cross-sectional configuration was found to be the predominant parameter affecting this property in the instruments analyzed.
Online since: January 2013
Authors: Wen Tao Liu, Jian Guo Ma, Zhe Zhu, Qiang Zou
Different buffer layers of polyvinly alcohol (PVA) and ZnO thin film are main factors leading to the differences in PL spectrum.
In this paper, ZnOnanobelts are introduced in order to modify the optical properties of the existing glass optical fibers made from silica.
It presents the idea that we plan to study the optical properties of the fiber by studying this developed pattern first.
We can also see from the TG analysis of the picture that the temperature of heat treatment is 600℃, which indicates the complete decomposition of PVA, thus no affects on the properties of ZnOnanobelts.
Then we concern about the technical processes that mainly affect the differences between sample 1 and 2, thus pay more attention on PVA.
In this paper, ZnOnanobelts are introduced in order to modify the optical properties of the existing glass optical fibers made from silica.
It presents the idea that we plan to study the optical properties of the fiber by studying this developed pattern first.
We can also see from the TG analysis of the picture that the temperature of heat treatment is 600℃, which indicates the complete decomposition of PVA, thus no affects on the properties of ZnOnanobelts.
Then we concern about the technical processes that mainly affect the differences between sample 1 and 2, thus pay more attention on PVA.
Online since: October 2011
Authors: Hong Xu
However, because of the adverse working conditions where bolt anchoring system always locate in, many factors such as erosion of underground water, defect of mortar cover and so on usually lead to bolt corrosion, then influence the performance of anchorage system.
Obviously JCR is the principal factor to affect.
In order to surmount the shortcoming above, thought of interface assembly in mechanical industry is adopted in this paper to simulate mortar cover cracking leaded by bolt corrosion.
There are three stages of mortar and rock surrounding affected by bolt corrosion.
An Experitnental studyof bond anchorage properties of bars inconcrete[J].1994, 15 (3):26-36.In Chinese [3] Zhao Yuxi, Jin Weiliang.Test study on bond behavior of corroded steel bars and concrete[J].
Obviously JCR is the principal factor to affect.
In order to surmount the shortcoming above, thought of interface assembly in mechanical industry is adopted in this paper to simulate mortar cover cracking leaded by bolt corrosion.
There are three stages of mortar and rock surrounding affected by bolt corrosion.
An Experitnental studyof bond anchorage properties of bars inconcrete[J].1994, 15 (3):26-36.In Chinese [3] Zhao Yuxi, Jin Weiliang.Test study on bond behavior of corroded steel bars and concrete[J].
Online since: December 2013
Authors: Hong Liu, Yu Wu Zhou, Xi Nan Yu, Lin Wang
Each fracture are encircled with the other fractures, and sometimes also is cut by other groups fractures, there may also be the more low-level fracture distribution in its vicinity, which will affect the crack-tip stress state and change the crack tip stress intensity factor.
Each fracture are encircled with the other fractures, and sometimes also is cut by other groups fractures, there may also be the more low-level fracture distribution in its vicinity, which will affect the crack-tip stress state and change the crack tip stress intensity factor.
However, for a certain position() near the leading edge of fracture, its size depends entirely on the stress intensity factor KI, KII, and KIII.
The stress intensity factor can be solved to adopt single-point displacement equation.
Conclusions (1) The fracture distribution law is an important factor affecting reasonable selection for waterflooding mode, and only fractures developing direction and the lateral pressure displacement law of fracture are known, can the fracture be utilized effectively, defining reasonable injection pressure to delay the directional water channelling, the time and speed of waterflooding, optimizing injection and production well network, and continuously improving the ultimate recovery efficiency of oil field
Each fracture are encircled with the other fractures, and sometimes also is cut by other groups fractures, there may also be the more low-level fracture distribution in its vicinity, which will affect the crack-tip stress state and change the crack tip stress intensity factor.
However, for a certain position() near the leading edge of fracture, its size depends entirely on the stress intensity factor KI, KII, and KIII.
The stress intensity factor can be solved to adopt single-point displacement equation.
Conclusions (1) The fracture distribution law is an important factor affecting reasonable selection for waterflooding mode, and only fractures developing direction and the lateral pressure displacement law of fracture are known, can the fracture be utilized effectively, defining reasonable injection pressure to delay the directional water channelling, the time and speed of waterflooding, optimizing injection and production well network, and continuously improving the ultimate recovery efficiency of oil field
Online since: May 2012
Authors: Wei Wang, Shan Suo Zheng, Pi Ji Hou, Ming Xie
Because of the anchoring properties of reinforcing bar and concrete is far higher than shape steel and concrete, the bond-slip between reinforcing bar and concrete can be ignored, which assumed the calculated deformation of reinforcing bar and concrete is equal to each other.
The result in literature [1] show that the regular of bond-slip is relates to longitudinal factors of SRC component, and the distribution pattern along the height of the cross section based on tests is shown in Fig.5.
In addition,there are other factor affect simulation result, the cross section of concrete should be divided into three areas, and the concrete material of every part should be adjusted.
B-B A-A Fig.6 Dimension of SHPC frame specimen Fig.7 Details of specimen Fig.8 Load curve Table 1 Mechanical properties of steel of test parameter Q235 Q235 A6 B12 flange web flange web HPB235 HRB335 321.0 315.5 319.7 312.4 297.5 384.0 1540 1503 1543 1507 1447 1863 509.9 494.2 491.5 502.5 438.0 557.0 Notes yield stress; yield strain; ultimate strength Application of Proposed Method.
The mechanical properties of steel are shown in Table 1.
The result in literature [1] show that the regular of bond-slip is relates to longitudinal factors of SRC component, and the distribution pattern along the height of the cross section based on tests is shown in Fig.5.
In addition,there are other factor affect simulation result, the cross section of concrete should be divided into three areas, and the concrete material of every part should be adjusted.
B-B A-A Fig.6 Dimension of SHPC frame specimen Fig.7 Details of specimen Fig.8 Load curve Table 1 Mechanical properties of steel of test parameter Q235 Q235 A6 B12 flange web flange web HPB235 HRB335 321.0 315.5 319.7 312.4 297.5 384.0 1540 1503 1543 1507 1447 1863 509.9 494.2 491.5 502.5 438.0 557.0 Notes yield stress; yield strain; ultimate strength Application of Proposed Method.
The mechanical properties of steel are shown in Table 1.
Online since: October 2021
Authors: Nilufar Mamatmusaeva, Umida Tillaeva, Botir Daminov, Saida Saidkhodjaeva, Marat Iskandarov, Andrey Ponomarev, Ivan Kuznecov, Olga Malyugina
As the oral cavity is abundant in blood vessels and nerves, biomaterial negative properties will manifest quickly and obviously.
Biocompatible material: - has the same properties as a bioinert material, and also provides a healing regenerating effect.
All these factors have a negative effect on TMJ and can result in the loss of osseointegration and atrophy of the jawbone tissues. [24].
Thus, the mechanical factor of irritation is in close etiological and pathogenetic connection with the development of focal and diffuse stomatitis.
The mechanical action of the material changes, depending on the material life, variability of its physical and mechanical properties.
Biocompatible material: - has the same properties as a bioinert material, and also provides a healing regenerating effect.
All these factors have a negative effect on TMJ and can result in the loss of osseointegration and atrophy of the jawbone tissues. [24].
Thus, the mechanical factor of irritation is in close etiological and pathogenetic connection with the development of focal and diffuse stomatitis.
The mechanical action of the material changes, depending on the material life, variability of its physical and mechanical properties.
Online since: April 2008
Authors: Ji Hong Tian, Jian Sheng Liu, Hui Qin Chen, Hui Guang Guo
It demands for
high strength, good toughness, uniform mechanical properties, the least residual stress and excellent
resistance to stress corrosion due to bearing wicked working environment.
So the traditional free forging process has become a factor that baffles the development of retaining ring manufacture and must be reformed [2].
The punch is one of the main dies, whose working angle (as shown in Fig. 8) not only affects the value of the forming loading, but the strain distribution of the ring blank.
Chinese journal of mechanical engineering.
Chinese journal of mechanical engineering.
So the traditional free forging process has become a factor that baffles the development of retaining ring manufacture and must be reformed [2].
The punch is one of the main dies, whose working angle (as shown in Fig. 8) not only affects the value of the forming loading, but the strain distribution of the ring blank.
Chinese journal of mechanical engineering.
Chinese journal of mechanical engineering.