Sort by:
Publication Type:
Open access:
Publication Date:
Periodicals:
Search results
Online since: June 2007
Authors: Tadahiro Kawase, Hiroyuki Shiozaki, Toshitaka Iwauchi
From these results, the roll torque was found to be directly affected by the horizontal forces,
but the rolling force was not affected.
Introduction One of the purposes for the densification of lumber is to improve its mechanical properties, including surface hardness, Young's modulus, and bending strength.
Therefore, it is important to understand the factors that affect T/2RP.
This paper examines horizontal forces F1 and F2 as the influencing factors.
The variation rates of P were not affected by (∆F1 - ∆F2).
Introduction One of the purposes for the densification of lumber is to improve its mechanical properties, including surface hardness, Young's modulus, and bending strength.
Therefore, it is important to understand the factors that affect T/2RP.
This paper examines horizontal forces F1 and F2 as the influencing factors.
The variation rates of P were not affected by (∆F1 - ∆F2).
Online since: August 2017
Authors: Sitthi Duangphet, Damian Szegda, Karnik Tarverdi, Jim Song
Combining inorganic fillers and polymers is a common practice in packaging, not only for reduction of costs, but also for improvements of properties that are important in packaging, such as barrier [4,5] and mechanical properties [6].
The introduction of CaCO3 noticeably improved rheological behavior of PHBV by increasing complex viscosity and enhancing mechanical properties.
Unfortunately, the mechanical properties were inferior when an overloaded amount of filler was used.
GPC was used to determine the molecular weight of PHBV samples since it is an important factor influencing properties and applications of polymers.
Zhang, Structure and mechanical properties of poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV)/clay nanocomposites, J.
The introduction of CaCO3 noticeably improved rheological behavior of PHBV by increasing complex viscosity and enhancing mechanical properties.
Unfortunately, the mechanical properties were inferior when an overloaded amount of filler was used.
GPC was used to determine the molecular weight of PHBV samples since it is an important factor influencing properties and applications of polymers.
Zhang, Structure and mechanical properties of poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV)/clay nanocomposites, J.
Online since: September 2013
Authors: Rafiza Abd Razak, Yahya Zarina, H. Kamarudin, A. Alida, Khairul Nizar Ismail, A.M. Mustafa Al Bakri, Omar A. Abdulkareem
Development and Properties of Low-Calcium Fly Ash-based Geopolymer Concrete.
Microstructure and Properties of Chemically Activated Fly Ash Concrete.
Factors Affecting the Immobilization of Metals in Geopolymerised Fly Ash.
The Effect of Alkali Metal Activator on the Properties of the Fly Ash-based Geopolymers.
Factors affecting the performance of metakaolin geopolymers exposed to elevated temperatures.
Microstructure and Properties of Chemically Activated Fly Ash Concrete.
Factors Affecting the Immobilization of Metals in Geopolymerised Fly Ash.
The Effect of Alkali Metal Activator on the Properties of the Fly Ash-based Geopolymers.
Factors affecting the performance of metakaolin geopolymers exposed to elevated temperatures.
Online since: September 2014
Authors: Vera Murgul, Rustam Usmanov, Ivan Mrdak, Marina Rakočević, Ljiljana Žugić, Nikolay Vatin
Analysis of the influence of dynamic properties of structures on seismic response according to Montenegrin and European regulations.
All these factors affect the dynamic characteristics of the structure, which directly affect the response of the structure during an earthquake.
A linear-elastic dynamic analysis of structures can be described by the following dynamic properties: stiffness, mass and damping.
In fact, by varying the number of floors, the mass changed as well as the stiffness of the elements of the structure, while other factors affecting the seismic response of the structure are considered invariably.
Murgul: Improvement of the energy efficient properties of the houses in the historical area of Saint-Petersburg, Architecton: Proceedings of Higher Education, 4 (40) (2012), pp. 54-62 [10] A.
All these factors affect the dynamic characteristics of the structure, which directly affect the response of the structure during an earthquake.
A linear-elastic dynamic analysis of structures can be described by the following dynamic properties: stiffness, mass and damping.
In fact, by varying the number of floors, the mass changed as well as the stiffness of the elements of the structure, while other factors affecting the seismic response of the structure are considered invariably.
Murgul: Improvement of the energy efficient properties of the houses in the historical area of Saint-Petersburg, Architecton: Proceedings of Higher Education, 4 (40) (2012), pp. 54-62 [10] A.
Online since: May 2013
Authors: Yi Wang, Nan Zheng, Xiao Xia Chen
Introduction
The cut-out of composite structures may cut off the fiber and cause stress concentration, leading to the reduction of loading capacity of components, affecting the service life and the safe abundance of the structure directly, especially for the composite parts in the aeronautic structure.
The analytical method based on an inclusion analogy for determining the thermal residual stresses in an isotropic plate reinforced with a circular orthotropic patch and the explicit formulae for both the elastic properties and the thermal expansion coefficients of the equivalent inclusion is given[4].
Cutting specimens for mechanical tests out of the textile-reinforced composite plates results in a complex non-uniform reinforcement structure at their edges may affect the strength of specimens[5].
The basic material properties of Quasi-Isotropic Graphite Epoxy were presented in Table 1.
The bulking deformation around the cut-out caused by the eccentric bending moment by the physical dimension asymmetric may be the key factor.
The analytical method based on an inclusion analogy for determining the thermal residual stresses in an isotropic plate reinforced with a circular orthotropic patch and the explicit formulae for both the elastic properties and the thermal expansion coefficients of the equivalent inclusion is given[4].
Cutting specimens for mechanical tests out of the textile-reinforced composite plates results in a complex non-uniform reinforcement structure at their edges may affect the strength of specimens[5].
The basic material properties of Quasi-Isotropic Graphite Epoxy were presented in Table 1.
The bulking deformation around the cut-out caused by the eccentric bending moment by the physical dimension asymmetric may be the key factor.
Online since: March 2021
Authors: Juliane Fichtner, Tobias Ulrich, Ines Dani, Philipp Dobeleit, Tobias Stoll, Mary Esther Ascheri
In particular, the powder bed based laser beam melting (LBM) allows a precise spatial energy input to fully melt metal powders to dense structures with mechanical properties comparable to those of conventionally manufactured parts.
To determine the viscoelastic properties an oscillation test, namely the amplitude sweep, was performed.
The larger the difference between the moduli is the more the samples show the properties of a pure fluid and solid, respectively.
UV-vis-NIR Spectroscopy The UV-vis-NIR spectrophotometry was used to characterize the absorption properties of the obtained samples.
DOE of Printing The computational design of experiment was used to acquiring data in a controlled way, obtaining information about the printing processes and also to identify significant factors affecting the process.
To determine the viscoelastic properties an oscillation test, namely the amplitude sweep, was performed.
The larger the difference between the moduli is the more the samples show the properties of a pure fluid and solid, respectively.
UV-vis-NIR Spectroscopy The UV-vis-NIR spectrophotometry was used to characterize the absorption properties of the obtained samples.
DOE of Printing The computational design of experiment was used to acquiring data in a controlled way, obtaining information about the printing processes and also to identify significant factors affecting the process.
Online since: October 2018
Authors: Sianny Surya Putri Kurnia, Dede Taufik, Zulia Hasratiningsih, Veni Takarini
Dental porcelain is one of the indirect restoration material with excellent aesthetic properties,on the other hand porcelain hardness frequently causing excessive wear of antagonist teeth.
Statistic result shows that sintering temperature significantly affected the hardness value of the porcelain (p value < 0.05).
The biocompatibility, durability and strength of porcelain are also contributing factors for porcelain as indirect restoration, unfortunately porcelain still has some shortcomings, including its sufficiently high hardness values [1,2].
From this, we can conclude that sintering temperature affected the self-synthesized porcelain hardness.
Harabi, Sintering and mechanical properties of porcelains prepared from Algerian raw materials, Cerâmica, 57 (2011) 453-460
Statistic result shows that sintering temperature significantly affected the hardness value of the porcelain (p value < 0.05).
The biocompatibility, durability and strength of porcelain are also contributing factors for porcelain as indirect restoration, unfortunately porcelain still has some shortcomings, including its sufficiently high hardness values [1,2].
From this, we can conclude that sintering temperature affected the self-synthesized porcelain hardness.
Harabi, Sintering and mechanical properties of porcelains prepared from Algerian raw materials, Cerâmica, 57 (2011) 453-460
Online since: February 2017
Authors: Norashidah Abd Rahman, Zainorizuan Mohd Jaini, Rahmat Hidayat Muhammed Rum, Siti Amirah Azra Khairuddin, Mohd Naqiuddin Zamri
Several studies have been conducted to determine the mechanical properties and strength of foam concrete.
From the experiment, results showed that S/W ratio affected fracture energy.
Renewed interest in the application of foam concrete as a structural element has led to various studies on the engineering properties, strength, and structural behavior of this material.
This finding significantly affects the fracture energy of foam concrete.
Kunhanndan Nambiar, G Indu Siva Ranjani, A classification of studies on properties of foam concrete, J.
From the experiment, results showed that S/W ratio affected fracture energy.
Renewed interest in the application of foam concrete as a structural element has led to various studies on the engineering properties, strength, and structural behavior of this material.
This finding significantly affects the fracture energy of foam concrete.
Kunhanndan Nambiar, G Indu Siva Ranjani, A classification of studies on properties of foam concrete, J.
Online since: July 2013
Authors: Anish Roy, Vaibhav A. Phadnis, Farrukh Makhdum, Vadim V. Silberschmidt
Introduction
Carbon-epoxy composites are widely used in aerospace, automobile applications due to their superior mechanical and physical properties.
Delamination, a barely visible internal damage (BVID), initiates between the neighbouring plies of CFRP, and decreases a load-carrying capacity of composite parts affecting their overall structural strength.
The drilling force has a direct effect on drilling-induced damage in composites; hence, it is considered to be the primary parameter affecting quality of a drilled hole [13, 14].
The drill was meshed with 35,000 elements, with the smallest element size of 125 μm. 4.2 Drill-workpiece contact and boundary conditions The contact and friction parameters used in the simulation were based on a number of experimental factors involving the cutting speed, feed rate, geometry and surface properties.
The details of this material model and corresponding material properties can be found in our previous paper [21].
Delamination, a barely visible internal damage (BVID), initiates between the neighbouring plies of CFRP, and decreases a load-carrying capacity of composite parts affecting their overall structural strength.
The drilling force has a direct effect on drilling-induced damage in composites; hence, it is considered to be the primary parameter affecting quality of a drilled hole [13, 14].
The drill was meshed with 35,000 elements, with the smallest element size of 125 μm. 4.2 Drill-workpiece contact and boundary conditions The contact and friction parameters used in the simulation were based on a number of experimental factors involving the cutting speed, feed rate, geometry and surface properties.
The details of this material model and corresponding material properties can be found in our previous paper [21].
Online since: April 2012
Authors: C. Isaac Garcia, Anthony J. DeArdo, Chao Fang, Shi Hoon Choi
Hence other structural factors such as precipitation and/or solute drag might become more important in controlling the kinetic behavior of the steel during annealing.
1.
It is well known that, traditionally, the level of stored energy could be measured directly by calorimetry or determined indirectly from the change in some physical or mechanical property of the material such as hardness and electrical resistance.
These factors will be explored in future work. 5.
Materials Science & Engineering A (Structural Materials: Properties, Microstructure and Processing), 2004.
Materials Science & Engineering: A (Structural Materials: Properties, Microstructure and Processing), 2008. 485(Copyright 2008, The Institution of Engineering and Technology): p. 200-9.
It is well known that, traditionally, the level of stored energy could be measured directly by calorimetry or determined indirectly from the change in some physical or mechanical property of the material such as hardness and electrical resistance.
These factors will be explored in future work. 5.
Materials Science & Engineering A (Structural Materials: Properties, Microstructure and Processing), 2004.
Materials Science & Engineering: A (Structural Materials: Properties, Microstructure and Processing), 2008. 485(Copyright 2008, The Institution of Engineering and Technology): p. 200-9.