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Online since: April 2015
Authors: Salmah Husseinsyah, Azimah Ismail, Hakimah Osman
The dispersion and interfacial adhesion between the CS filler and thermoplastic were important factors affecting the tensile properties of composites system.
The addition of MAPE has enhanced tensile properties and interfacial interaction between CS and LDPE biocomposites, as demonstrated in SEM study.
The compatibility problem between natural filler and polyolefin may results in poor filler-matrix adhesion as well as poor mechanical properties.
The good properties of these biocomposites can be obtained by improving the compatibility between these two materials.
Tensile properties for five identical samples of each composition were measured and the average values were reported.
Online since: August 2016
Authors: Johanna Kerschreiter, Johannes W. Stock
In contrast, the impact of the cut edge on the mechanical properties is not yet understood sufficiently.
Table 1: Properties of the CFRP material.
Dynamic open hole tensile testing according to ASME D5766 [2] could be identified as a sensitive indicator of the mechanical edge properties in laser cutting in previous studies [1].
Beneath this temperature the mechanical properties of the rigid composite were determined as a function of the thermal stress.
E.: Peterson's stress concentration factors. 3rd ed.
Online since: May 2006
Authors: André Cardoso, Isabel Macedo, Marta C. Oliveira
A correlation between deformation level and rheological properties could also be observed, which can be very useful in the triage of adhesive batches for specific process parameters window.
Figure 1 - Application of chip onto substrate in FBGA technology PCB substrate, top side Adhesive Chip on adhesive Bottom side Bonding channel Bonding pads The primary factor affecting deformation stability is adhesive variability.
Adhesive basic properties (eg: viscosity, lap shear strength, ionic content) are provided by the supplier for each batch, but no data on deformation performance at chip-apply process is shared.
This DoE considered two control factors (pre-cure cycle and evaporation time at 60 ºC) with 3 levels, and adhesive batch as noise factor.
Besides pre-cure parameters, this is also an important factor affecting process stability.
Online since: January 2006
Authors: Jin Ray Hsu, Chaug Liang Hsu, Cheng Kuo Sung, Chih Chung Hsiao
The atomic level process of the nanostructure formation and the thermo-mechanical effect caused by the factors of the contact area, the adhesion force, and the temperature were clearly shown and discussed.
The relations among the factors of contact area, temperature, and adhesion force w.r.t the material behavior are discussed.
Thus no discernable variations on the system properties were observed beyond natural fluctuations.
In the nanoscale, the temperature effect is increasingly important because the kinetic energy of the atoms is directly affected.
The contact area became a minor factor.
Online since: November 2009
Authors: David G. Morris, Maria A. Muñoz-Morris, Ivan Gutierrez-Urrutia
Experimental Details This overview of factors affecting ductility of ultrafine grained materials prepared by severe plastic deformation will re-examine deformation and fracture in two sets of materials previously studied by the present research group [24-26].
Mechanical properties were evaluated on such heavily deformed materials, both in tension, using cylindrical samples of gauge diameter 3 mm and length 20 mm, and in compression, using cylindrical samples of diameter 3 mm and length 5 mm.
Irrespective of the details of internal stresses generated during the severe plastic deformation by the corresponding dislocation and grain boundary substructures, it is clear that stress/strain recovery during unloading, and the orientation of reloading relative to the prior deformation, will play a role in determining the initial flow stress (affecting it by 5-10%, see Fig. 7), as well as the work hardening rate over the first few percent of subsequent plastic deformation (affecting it by as much as a factor of 2, see Fig. 7).
Summary: Factors Influencing Uniform Deformation and Tensile Ductility of Ultrafine Grained Materials This review of the factors affecting the tensile plastic deformation response of ultrafine grained materials prepared by severe plastic deformation has emphasized several points which are not generally considered when examining the mechanical behaviour of these novel materials.
Firstly, the factors that influence the amount of uniform plastic strain, to the maximum stress, and those that influence the tensile ductility, are not the same.
Online since: April 2025
Authors: Zeeshan Ullah, Muhammad Khurram Rashid, Saima Shafi Ur Rehman, Maryam Sadia
This results in denser concrete with superior mechanical properties [2].
The primary advantages of high-strength concrete include many economic factors as well as the requirements for a practical solution in today’s material science.
The production process and nature of silica fume significantly influence its chemical and physical properties, which in turn affect its performance in concrete.
Traditionally, small changes in properties such as concrete mix design, curing, and other factors of normal-strength concrete result in only minor variations in strength and other characteristics.
Silica fume, being a highly reactive pozzolan, was chosen for its ability to significantly enhance the mechanical properties and durability of concrete [15].
Online since: June 2020
Authors: Mallarapu Gopi Krishna, K. Krishna Mohan Reddy, Ch. Kishore Reddy, P. Karthik
These AMCs are as potential as they processed very much able in their mechanical and physical properties viz., tensile strength, strain, hardness, wear and fatigue.
Hence, the effective factors which are the cause for their output, like, type of reinforcement, amount of reinforcement, size of particulate of reinforcement, temperature and pressure etc., were also scrutinized retrospectively.
Comparison of properties of Monolithic materials with Composite Material Name Density g/cc Modulus Gpa Strength MPa 4340 steel 8.0 200 1760 7475 Aluminium 2.7 70 570 Al-5% SiC 2.6 140 1500 The mechanical properties like tool wear and surface roughness of Aluminium matrix composite greatly influenced by factors like feed rate, cutting speed, percentage volume of particulate, etc., and among them the feed rate is the factor which has higher effect on surface roughness, next is cutting speed and then percentage volume fraction of particulate.
Al-Al2O3 MMCs having good mechanical and wear properties for using in crank bearing and motor block in order to improve the anti-wear properties [23].
Among several confronts, influence of reinforcement type majorly effects on the mechanical properties and its corresponding applications.
Online since: December 2009
Authors: Ehab El-Danaf, Magdy M. El Rayes, Mahmoud S. Soliman
The effects of varying the welding parameters namely welding speed [56, 90 and 140 mm/min] and tool rotational speed [850 and 1070 rpm] on the mechanical and microstructural properties were studied.
Minimizing the weld heat-affected zones reduces concerns about property gradients across the weld joints.
Therefore, it is imperative to gain better understanding of friction stir welded- commercial purity 1050 Aluminium Alloy through characterising the microstructural and the mechanical properties of the resulting joints and through studying the effect of varying welding conditions such as tool rotational speed and work piece welding speed on these properties.
Tensile tests were performed in order to evaluate the static properties of the welded joints and also the as-received base metal.
One of the determining factors that control the nugget grain size is the tool rotational speed by itself and the ratio of tool rotational speed to the welding speed.
Online since: June 2013
Authors: Santirat Nansaarng, Prachya Peasura, Narasak Duangsrikaew
Many experiments involve the study of the effects of two factor is an interaction between the factors.
The research was studied effect post weld heat treatment related mechanical properties and ferrite content of duplex stainless steels UNS31803 grade.
Factors used in the type of PWHT temperature and PWHT time with the P-Value of factors was 0.000 (<0.005).
The factors that result in PWHT temperature of 750°C and PWHT time for 8 hour.
Structure and properties of the heat-affected zone of duplex steels welded joints.
Online since: May 2015
Authors: Antonín Kříž
As shown in the following section on the surface integrity, these are not all the factors affecting the behaviour of the part.
The purpose of surface integrity analysis is to obtain a comprehensive description of the state of surface, as there are many factors affecting the resulting properties of a component.
These factors operate simultaneously.
External factors: Mechanical (in-service stress) Chemical (corrosion) Physical (radiation, stray currents and others) Combination of multiple factors (stress corrosion, electrochemical corrosion and even manufacturing processes, such as chip removal, heat treatment, forming) Internal factors: Residual stresses Surface morphology (roughness) Material and mechanical properties of the surface (hardness, effects of hardening, state of microstructure, surface treatment, such as films and coatings).
Material Characteristics and Mechanical Properties of Surface The previous results confirmed that the numerical values can be distorted by a number of other factors.
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