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Online since: March 2016
Authors: Deng Zun Yao, Yu Ran Fan, Ting Zhong, Yan Zhou, Xi Xi Zhang
The factors of stress of tie-in girth weld were analyzed.
The results show that uncovered pipe length, tie-in offset and misalignment were the important factors which affect the stress of tie-in girth weld.
The stress of the tie-in girth weld is affected by multiple factors, including but not limited to uncovered pipe length of the two side of tie-in girth weld, tie-in offset and Misalignment of the weld.
So it can be concluded that misalignment is one of the most important factors affecting the stress of tie-in girth weld [8].
By the results of FEA, it is concluded that: (1) Uncovered pipe length, tie-in offset and misalignment are the important factors which affect the stress of tie-in girth weld.
Online since: October 2012
Authors: Li Hua Lv, Chun Yan Wei, Yong Zhu Cui, Zheng Wu, Wang Xiao
According to the factors which affected the properties of the composites, the orthogonal table of L16 (45) was adopted.
Levels of the factors were shown in Table 1.
Factors in order which affected flame-retardant property were: addition of flame-retardants>mass fraction of fibers>length of fibers>molding temperature.
But it had some effects on the mechanical properties of the composites.
Mass fraction of fibers was also an important factor affecting mechanical properties of composites.
Online since: October 2011
Authors: Manimaran Ratnam, Zainal Arifin Ahmad, Ahmad Zahirani Ahmad Azhar, Hasmaliza Mohamad
The mechanical properties and microstructure of zirconia-toughened-alumina ceramic composite doped with nano particle of MgO is investigated.
A number of properties of Al2O3 are closely related to atomic and electronic structures of intrinsic point defect and dopants.
Besides ZTA, magnesium oxide (MgO) has an important effect on mechanical and electrical properties of bulk Al2O3 [5].
Properties such as density and Vickers hardness were measured.
Factors like micro-structural features and densities are important properties that significantly influence the hardness of ZTA–MgO composite.
Online since: October 2024
Authors: Giulia Scampone, Antonio Russo, Roberto Muzzani, Alessio Carminati, Giulio Timelli
agiulia.scampone@phd.unipd.it, bantonio.russo@gruppogaser.com, croberto.muzzani@gruppogaser.com, dalessio.carminati@gruppogaser.com, etimelli@gest.unipd.it Keywords: Anodizing; Al-Si alloy; High pressure diecasting; Microstructure; Surface mechanical properties.
Scratch and wear tests were also performed to investigate the surface mechanical properties after anodizing.
The presence of surface segregation prevents the thickening of the anodic layer, negatively affecting the surface wear resistance due to the reduced oxide thickness.
The limited thickness of the oxide layer formed on the grit-blasted substrate due to the presence of surface segregation negatively affects the surface mechanical properties, particularly the wear resistance.
Fabrizi, The Effects of Microstructure Heterogeneities and Casting Defects on the Mechanical Properties of High-Pressure Die-Cast AlSi9Cu3(Fe) Alloys, Metall.
Online since: September 2007
Authors: Y.H. Fu, Lan Cai, Yun Wang, Z.Y. Xu
It presents the influence of various factors affecting the textured workpiece performance together with the investigations into tribology of textured components.
The topographical surface of textured roll can be transferred into the steel sheet surface, and their mechanical, physical and mechanical properties can be enhanced.
This method has the advantages of high efficiency and improved mechanical properties of the material.
This is mainly carried out by understanding the interrelationship between the various factors affecting the process and identifying the optimal machining condition from the infinite number of combinations.
Chemical and Physical Properties of Laser-Modified Polymers.
Online since: October 2014
Authors: Farizah Adliza Ghazali, Yupiter HP Manurung, Mohamed Ackiel Mohamed
Based on the results, welding current was found to be most effective parameter affecting shear strength and nugget size.
The important changes occur in mechanical and metallurgical properties of the spot welds area during the spot weld process.
The shear strength of lap joint of spot welds is a complex phenomenon which depends on several factors, namely, welding parameters and base metal properties.
The chemical composition and mechanical properties of workpiece is listed in Table 1.
Chemical compositions and mechanical properties.
Online since: December 2009
Authors: Wissem Tebni, M. Boujelbene, E. Bayraktar
A simple and easily understandable model was proposed for predicting the relative importance of different factors (composition of the steels and Electro Discharge Machining processing conditions) in order to obtain an efficient pieces.
Indeed, it is the portion of the base metal that was not melted during brazing, cutting or welding, but whose microstructure and mechanical properties were affected.
The second developed a genetic expression programming (GEP) method and a mathematical relationship has been suggested between the GEP model, surface roughness and parameters affecting it and find that this relationship allows determine roughness values of materials with similar properties very close to the experimental values.
Hence, it is expected that one of the most important factors to affect material hardness is the strain rate effect.
Properties of metal dissolution by electroerosion, Canadian Journal of Analytical sciences and spectroscopy (2003)
Online since: February 2006
Authors: Dan Li, Ying Chun Liang, K. Cheng, T. Sun, Wen Jun Zong
The Factors Influencing on Cutting Edge Radius of Ultra-precision Diamond Cutting Tools in Mechanical Lapping W.J.
The Influencing Factors on Cutting Edge Radius Fig. 3 is the lapping machine tool of diamond cutting tools.
In order to investigate these factors influences, we will analyze them one by one.
Optimal Selections of the Influencing Factors.
On the optimal selections of influencing factors, a perfect diamond tool is lapped in ductile mode.
Online since: February 2011
Authors: Yuan Lung Lai, Jui Pin Hung, Fu Tsai Chiang
This provides a valuable reference to the improvement of the mechanical properties or design of bearing materials in clinical orthopedic application.
At this time the crack will propagate in a non-self manner and hence the propagation of crack will be affected by the stress intensity factors of three crack modes simultaneously.
In clinical practice, the material properties of polyethylene cup are affected by gamma radiation used for sterilization.
As a conclusion, it is believed that the analysis results can provide a valuable reference to the improvement of the mechanical properties or design of bearing materials in clinical orthopedic application.
Bailey: Factors affecting near-threshold fatigue crack propagation behavior of orthopedic grade ultra high molecular eight polyethylene.
Online since: July 2016
Authors: Alexander Scheuermann, Somayeh Behraftar, Joshua Heslin, S. Galindo Torres
Numerical analyses, such as the one presented in this work, will serve to close the knowledge gap concerning the correlation between k, UCS and other material properties of rocks.
Failure load is another parameter which affect UCS and Is (50) (Eq. 1).
This value can be controlled by changing microscopic parameters shown in Table 1 which is changed based on material properties.
In order to estimate UCS, index-to-strength conversion factors are used.
These factors vary depending on rock type.
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