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Online since: June 2019
Authors: Frank Walther, Daniel Hülsbusch, Selim Mrzljak, Nikolai Gelinski, Eugen Schumacher, Stefan Böhm
Results reveal that the fatigue properties primarily depend on the imperfections of the weld seam, which are affected mostly by the discharge current and the surface topography.
The observation of improved weld seams and therefore mechanical properties with higher currents was also made by e.g. [6], but for quasi-static load.
a) b) Fig. 6: Corrosion condition depending properties: (a) maximum force Fmax,f at failure in multiple amplitude tests and (b) lifetime in constant amplitude tests Conclusions and Outlook The presented results give an impression about the variety of factors which influence the resilience of magnetic pulse welded hybrid joints regarding fatigue.
[5] Kwee I., Psyk V., Faes K., Effect of the welding parameters on the structural and mechanical properties of aluminium and copper sheet joints by electromagnetic pulse welding, World Journal of Engineering and Technology, 4 (2016) 538-561
[6] Cui J., Sun T., Geng H., Yuan W., Li G., Zhang X., Effect of surface treatment on the mechanical properties and microstructures of Al-Fe single-lap joint by magnetic pulse welding, The International Journal of Advanced Manufacturing Technology, 98 (2018) 1081-1092
Online since: September 2011
Authors: Pei Chen, Xi Kang Yan, Zhan Wei Li, Jun E Liu
Therefore, in terms of the durability design of structures of buildings in coastal area, the study on the mechanical properties of the structure under short-term corrosive effect has practical significance which can not be ignored.
In this paper the mechanical properties of reinforced concrete beams are studied; the changes of the cracking load and carrying capacity of the components with prolonged corrosion in normal use are elaborated and with the mathematical model of the cracking load an indepth mechanism analysis is made on the result of the test.
Test Results and Analysis on Mechanical Properties of Beams in Bending Distribution and development of cracks The cracks' emergence and development of the beams are different.
Thus it can be seen: the effect of the additional expansion prestress to the cracking load , ultimate load and other mechanical properties of the beams which are corroded by salt fog can not be neglected.
This paper introduces the concept of the additional expansion prestress and establishes a mathematical model of the additional expansion prestress based on which the computational model of the cracking load is deduced, and combine with test data, proves that the important role the additional expansion prestress plays on the mechanical properties of members being corroded.
Online since: September 2011
Authors: Bin Zhao
The Finite Element Method (FEM) was used for axisymmetric indentation to investigate mechanics properties of piezoelectric solids (PZT-5H).
Introduction Piezoelectric materials with special electric and mechanical properties have been used in many areas such as actuators, sensors, and Microelectromechanical systems (MEMS).
All of these researches have proven that the indentation technique, as a tool, can be used to determine certain properties of piezoelectric materials.
Uncoupled Mechanical Case.
It indicates that polarization and the electric potential can affect the indentation load.
Online since: February 2022
Authors: Chen Guang Xu, Jin Jun Tang, Cui Liang
As shown in the Table 1, the mechanical property index of M172 piston aluminum alloy material is that the tensile strength of piston skirt at 25℃ is 280mpa and the elongation is 1%.
The safety factor is calculated according to 1.2, which will cause material damage and failure.
Wu, Effects of annealing temperature on the mechanical properties and sensitization of 5083-H116 aluminum alloy, Proc.
Case, Mechanical Properties of 5000 Series Aluminum Alloys Following Fire Exposure, TMS 2016 145th Annual Meeting& Exhibition, Springer, 2016, pp. 657–664
Tong, Effect of annealing temperature on microstructure, mechanical properties and corrosion behavior of Al-Mg-Mn-Sc-Zr alloy, Appl.
Online since: March 2022
Authors: Rahmayetty Rahmayetty, Wardalia Wardalia, Endarto Yudho Wardhono, Nufus Kanani
Milkfish satay susceptible to be spoiled due to the moisture contents, chemical, and physical factors, however it can impact to the short shelf life.
Blending chitosan (CH) and synthetic polymer with good mechanical properties such as poly (ethylene oxide) (PEO), poly (vinyl alcohol) (PVA), and poly (lactic acid) (PLA) can improve the mechanical properties of blend film [15][16].
Integrate the chitosan (CH) enrich with essential oil blend film and PLA can improve the versatile properties such as mechanical properties and water barrier properties of blend film [21].
Blend film with various essential oil contents were characterized to evaluated the blend film mechanical properties.
Result and Discussion Mechanical Properties Analysis.
Online since: March 2019
Authors: Radim Kopřiva, Petra Petelova, Barbora Maresova, Ondrej Bursik
Introduction The small punch test (SPT) is one of the preferred miniaturized testing methods developed for characterizing selected mechanical properties of materials.
The test does not cover the derivation of basic mechanical properties, but current activities of ASTM Subcommittee E10.02 Behavior and Use of Nuclear Structural Materials go in that direction [14].
Fe [N] Fm [N] um [mm] uf [mm] ESP [J] ETO [J] EPL [J] hf [mm] Chamfer 267.9 1783.6 1.484 1.647 1.819 1.543 1.125 0.159 Radius 222.9 1755.4 1.454 1.702 1.960 1.541 1.370 0.140 One of the other factors that may affect the resulting values is the tightening torque or in other words the boundary conditions.
“Small Punch Tests to Estimate the Mechanical Properties of Steels for Steam Power Plant: II.
“Recent Developments in Small Punch Testing: Tensile Properties and DBTT.”
Online since: December 2024
Authors: Hanna Tantsura, Ivan Belmas, Olena Bilous, Kateryna Antonova, Dmytro Kolosov, Serhii Onyshchenko
This is based on structural parameters and mechanical properties of components of a composite rope and conditions of its interaction with the structure, thereby increasing reliability and operation efficiency of the structure, in particular, the cable-stayed bridge.
Stay ropes are affected by the environment, wires corrode, and wind loads affect them.
The distribution of forces among the cables depends on the specified factors.
Since the mechanical properties and stay rope design are different and regular in orthogonal directions, the stay rope as a composite structure is orthotropic.
A model is created, a method for calculating a stress-strain state of an orthotropic composite tractive element is developed, with comprehensive consideration of its design, mechanical properties of its components, and given conditions for connection to the structure.
Online since: January 2012
Authors: Wei Jun Yang, Peng Wang
Previously, the majority research of strength were about the 28d strength, the study of early age concrete mechanical properties is rarely seen in domestic and foreign, about strength of ceramisite concrete changes with age is even less[1].
Regeneration concretes basic mechanical properties experimental study .Shanghai: Tongji University,2004 [2] Mazhiying.
Steel textile fiber concretes early time mechanical properties law of development experimental study .Beijing: Beijing industrial university,2003 [3] Luocaiyi.
Mixes material concretes early stadium mechanical properties experimental study differently.
Double douped light aggregate concretes mechanical properties experimental study .Xian: Xi'an the university of science and technology,2006 [8] Zhangjianren,Wanghaichen,Yangweijun.
Online since: January 2019
Authors: Rungsinee Canyook, Jessada Wannasin, S. Thanabumrungkul, W. Jumpol, N. Meemongkol
Shrinkage porosity is one of the major issues which affects mechanical properties such as strength and elongation in tilted pour permanent mold.
Shrinkage porosity is one of the major issues which affects mechanical properties such as strength and elongation in tilted pour permanent mold [2].
Gunasegaram at el. [3] have studied the factors that affect shrinkage porosity in permanent mold casting in commercial mass production.
Also, microstructure size and uniformity affect heat treatment times which adds production costs [4].
Online since: July 2014
Authors: Somnath Chattopadhyaya, Saurabh Dewangan
Discussion On Ranking The Sawability Of Rocks Using A Combined Multiple Attribute Decision Making Method Saurabh Dewangan1, a *, Somnath Chattopadhyaya2, b 1, 2Department of Mechanical Engineering, Indian School of Mines, Dhanbad, India asaurabh22490@gmail.com, bsomuismu@gmail.com Keywords: Sawability of rock, AHP, TOPSIS Abstract.
Factors such as Uniaxial Compressive Strength, Mohs Hardness, Quartz Content, Abrasiveness, Brazilian Tensile Strength and Grain Size were considered as affecting attributes to sawability of rocks.
Sawability is affected by controlled and uncontrolled parameters.
A number of researchers studied about the relationship between the sawability and rock properties.
In the present paper, few of the stones (granites) and its properties were taken from above reference to demonstrate and to validate the above stated method.
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