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Online since: June 2014
Authors: Celalettin Karadogan, Deniz Duran, Izzet Ozdemir
Analysed parameters are including, but not limited to: material flow, die filling, press loads, final product geometry, die service life investigation and product properties after forming.
Fig. 1: Double Cup Extrusion Test (DCET) Ghobrial et al. [10] investigated the effect of reduction in area (D2punch/D2container) to the cup height ratio for high and low friction factors.
Schrader et al. [9] studied the geometrical and process parameters affecting the cup height ratio and made proposals to design the test parameters for friction sensitivity.
Other thermo-physical properties, namely Young’s modulus, Poisson’s ratio, thermal expansion coefficient, thermal conductivity and specific heat capacity are calculated as a function of temperature by using a material properties calculation software, JMatPro.
Hansen, Factors Affecting the Double Cup Extrusion Test for Evaluation of Friction in Cold and Warm Forging, CIRP Annals - Manufacturing Technology, Volume 42, Issue 1, 1993, Pages 347-351.
Fig. 1: Double Cup Extrusion Test (DCET) Ghobrial et al. [10] investigated the effect of reduction in area (D2punch/D2container) to the cup height ratio for high and low friction factors.
Schrader et al. [9] studied the geometrical and process parameters affecting the cup height ratio and made proposals to design the test parameters for friction sensitivity.
Other thermo-physical properties, namely Young’s modulus, Poisson’s ratio, thermal expansion coefficient, thermal conductivity and specific heat capacity are calculated as a function of temperature by using a material properties calculation software, JMatPro.
Hansen, Factors Affecting the Double Cup Extrusion Test for Evaluation of Friction in Cold and Warm Forging, CIRP Annals - Manufacturing Technology, Volume 42, Issue 1, 1993, Pages 347-351.
Online since: March 2014
Authors: Jan Tomaštík, Radim Čtvrtlík
It has been reported that mechanical properties of hard dental tissues can exhibit size-dependent character [3].
In tribology the surface morfology is considered as one of the key factors affecting wear.
Summary Micromechanical properties and microtribological properties of human enamel and dentin were investigated.
Both methods have been proved as valuable methods for evaluation of mechanical and tribological properties of hard dental tissues on micro scale.
Balooch, Mechanical properties of human dental enamel on the nanometre scale, Arch.
In tribology the surface morfology is considered as one of the key factors affecting wear.
Summary Micromechanical properties and microtribological properties of human enamel and dentin were investigated.
Both methods have been proved as valuable methods for evaluation of mechanical and tribological properties of hard dental tissues on micro scale.
Balooch, Mechanical properties of human dental enamel on the nanometre scale, Arch.
Online since: April 2014
Authors: Yu Peng Chen, Wen Hong Tao, Xing Hua Fu, Li Yuan Dong, Hai Tao Yu
The order of the factors affecting 24 h water absorption comes out as hydrophobic agent content (B) > air-entraining agent content (C) > polystyrene particles content (A) > polypropylene monofilament fiber (D).
The order of the factors affecting the softening coefficient comes out as polystyrene particles content (A) > hydrophobic agent content (B) > air-entraining agent content (C) > polypropylene monofilament fiber (D).
Conclusions (1) The order of the factors affecting the dry density of thermal insulation mortar is: polystyrene particles content (A) > air-entraining agent content (C) > hydrophobic agent content (B) > polypropylene monofilament fiber (D).
The order of the factors affecting 24 h water absorption comes out as: hydrophobic agent content (B) > air-entraining agent content (C) > polystyrene particles content (A) > polypropylene monofilament fiber (D).
The order of the factors affecting softening coefficient is: polystyrene content (A) > hydrophobic agent content (B) > air-entraining agent content (C) > polypropylene monofilament fiber (D)
The order of the factors affecting the softening coefficient comes out as polystyrene particles content (A) > hydrophobic agent content (B) > air-entraining agent content (C) > polypropylene monofilament fiber (D).
Conclusions (1) The order of the factors affecting the dry density of thermal insulation mortar is: polystyrene particles content (A) > air-entraining agent content (C) > hydrophobic agent content (B) > polypropylene monofilament fiber (D).
The order of the factors affecting 24 h water absorption comes out as: hydrophobic agent content (B) > air-entraining agent content (C) > polystyrene particles content (A) > polypropylene monofilament fiber (D).
The order of the factors affecting softening coefficient is: polystyrene content (A) > hydrophobic agent content (B) > air-entraining agent content (C) > polypropylene monofilament fiber (D)
Online since: May 2012
Authors: Lei Hou, Qi Zhang, Jin Hong Li, Ling Xin Tong
Influence of calcined coal gangue addition on the setting time, mechanical property, mineral phase, and microstructure of MPC had been studied.
Introduction Magnesium phosphate cement (MPC) could be used as rapid repairing materials for pavements, airport runways and bridge decks due to its special properties such as fast setting, high early strength, high volume stability and high bond strength [1,2].
However, there are some factors limit its application, one of these is the higher cost compared to other inorganic repair materials, the addition of mineral admixture, such as coal fly ash, could not only reduce the cost but also improve the performance of MPC [3,4].
Zhang, et al., Properties and applications of magnesia phosphate cement mortar for rapid repair of concrete, Cem.
Yang, Application and influence factors of new super fast setting magnesia-phosphate cement mortar for rapid repair of concrete, Concr, 9 (2000), 49.
Introduction Magnesium phosphate cement (MPC) could be used as rapid repairing materials for pavements, airport runways and bridge decks due to its special properties such as fast setting, high early strength, high volume stability and high bond strength [1,2].
However, there are some factors limit its application, one of these is the higher cost compared to other inorganic repair materials, the addition of mineral admixture, such as coal fly ash, could not only reduce the cost but also improve the performance of MPC [3,4].
Zhang, et al., Properties and applications of magnesia phosphate cement mortar for rapid repair of concrete, Cem.
Yang, Application and influence factors of new super fast setting magnesia-phosphate cement mortar for rapid repair of concrete, Concr, 9 (2000), 49.
Online since: July 2015
Authors: Md Abdul Maleque, Muhammad Hasibul Hasan, M.H.A. Musa, Yeakub Ali Mohammad
The goal is to achieve superior mechanical properties by producing a fine and uniform acicular ferrite microstructure, rather than having a conventional ferrite/pearlite type microstructure.
Once the toughness level is reached, the critical defect size is controlled by the material strength properties and is no longer affected by toughness [10].
Amano et al. [12] have studied the metallurgical welding factors and co-related to local brittle zone formation.
Imai, "General properties of tmcp steels."
Nakano, Metallurgical and welding factors controlling local brittle zone in weld HAZ, Proceedings of the International Offshore Mechanics and Arctic Engineering Symposium, 1989, Vol. 3, pp. 683
Once the toughness level is reached, the critical defect size is controlled by the material strength properties and is no longer affected by toughness [10].
Amano et al. [12] have studied the metallurgical welding factors and co-related to local brittle zone formation.
Imai, "General properties of tmcp steels."
Nakano, Metallurgical and welding factors controlling local brittle zone in weld HAZ, Proceedings of the International Offshore Mechanics and Arctic Engineering Symposium, 1989, Vol. 3, pp. 683
Online since: March 2017
Authors: Mohammad Sukri Mustapa, Izzuddin Bin Zaman, Ida Aryanie Bahrudin, Mohd Ezree Abdullah, Syaiful Azmirul Mohd Rozlan, Nurul Idani Che Berhanuddin
The result of porosity-density indicates that porosity of composites will affect the mechanical properties.
Generally, composite have outstanding features compared to its original material in terms of mechanical properties, chemical properties, physical properties, production, cost, life cycle time, materials handling and appearance [2].
Result and Discussion Mechanical Properties.
Mechanical properties of 2 wt% epoxy/graphene composite.
Some of the factors should be consider which are; the temperature to expand the graphite material, the sonication time and also the type and ratio of modification material used.
Generally, composite have outstanding features compared to its original material in terms of mechanical properties, chemical properties, physical properties, production, cost, life cycle time, materials handling and appearance [2].
Result and Discussion Mechanical Properties.
Mechanical properties of 2 wt% epoxy/graphene composite.
Some of the factors should be consider which are; the temperature to expand the graphite material, the sonication time and also the type and ratio of modification material used.
Online since: March 2009
Authors: Sergiy A. Firstov, Victor F. Gorban, Inna I. Ivanova, Engel P. Pechkovsky
On increase in mechanical properties and resistance to
deformation they settle down in the following sequence: Ti3AlC2/TiC-Ti4AlN3/TiN-Ti3SiC2/TiC.
In these ternary MAX-compounds the best properties of metals and ceramics are combined.
On background of these features of nanolaminates two factors are affecting mainly the behavior at mechanical loading: presence of porosity and presence of the second phase particles.
In other words, mechanical properties and resistance of these materials to mechanical force are reduced.
If the presence of second phase is lower than 20 % (vol.) the primal factor determining the high-temperature mechanical properties is porosity: its increase results in decrease in strength and increase in plasticity.
In these ternary MAX-compounds the best properties of metals and ceramics are combined.
On background of these features of nanolaminates two factors are affecting mainly the behavior at mechanical loading: presence of porosity and presence of the second phase particles.
In other words, mechanical properties and resistance of these materials to mechanical force are reduced.
If the presence of second phase is lower than 20 % (vol.) the primal factor determining the high-temperature mechanical properties is porosity: its increase results in decrease in strength and increase in plasticity.
Online since: September 2015
Authors: Klára Machalická, Martina Eliášová
The reliability of adhesive in the connection during the life time of a structure is affected by many factors, [1], [2], [3], [4].
Five types of adhesives with different mechanical properties were chosen into research, and they were applied in glass-to-metal (steel, stainless steel, aluminum) and glass-to-glass connections.
Secondly, one complex model of the adhesive was created with assumption that, close to adhesive-substrate interface there is a contact zone with tougher mechanical properties than in the rest of adhesive.
Numerical models responding different mechanical properties of adhesives and changes in glue thickness were developed.
Eliášová, Influence of various factors on mechanical properties of adhesive joint in glass structures, In: Challenging Glass 3: Conference on Architectural and Structural Applications of Glass, CGC 2012, pp. 267-279 [4] V.
Five types of adhesives with different mechanical properties were chosen into research, and they were applied in glass-to-metal (steel, stainless steel, aluminum) and glass-to-glass connections.
Secondly, one complex model of the adhesive was created with assumption that, close to adhesive-substrate interface there is a contact zone with tougher mechanical properties than in the rest of adhesive.
Numerical models responding different mechanical properties of adhesives and changes in glue thickness were developed.
Eliášová, Influence of various factors on mechanical properties of adhesive joint in glass structures, In: Challenging Glass 3: Conference on Architectural and Structural Applications of Glass, CGC 2012, pp. 267-279 [4] V.
Online since: December 2011
Authors: Shi Hong Pang, Zhen Zhu Ma, Shu Guang Zang, Ying Chun Ou, Yan Zuo, Li Zhong Liu
The mechanical property of the polyurethane interlayer is an important factor of affecting the response of windshield against bird strike.
It is essential to model the bird with the correct mechanical behavior.
The simulation results show that it is worth to optimize the structures and material properties for a good capacity of impact resistance [9-11].
The polyurethane is a polymer which mechanical properties such as elastic modulus and hardness can be adjusted in order to meet different application requirements [12].
From the calculation results, it is found that the elastic modulus of polyurethane is one of the factors which affect the response of windshields.
It is essential to model the bird with the correct mechanical behavior.
The simulation results show that it is worth to optimize the structures and material properties for a good capacity of impact resistance [9-11].
The polyurethane is a polymer which mechanical properties such as elastic modulus and hardness can be adjusted in order to meet different application requirements [12].
From the calculation results, it is found that the elastic modulus of polyurethane is one of the factors which affect the response of windshields.
Online since: December 2024
Authors: Abdulhakim Shukurea, Péter Zoltán Kovács, János Lukács
The quality of the clinching joint is influenced by many factors, such as the material properties, die geometry, friction, and the state of the process.
The clinching joint can be affected by several factors, such as the tool geometry parameters and the process parameters.
The mechanical properties of the material were measured in University of Miskolc laboratories.
EN AW 5754 Mechanical Properties of Aluminium Alloy.
Ball, ‘Mechanical properties of extensible die clinched joints in titanium sheet materials’, Mater.
The clinching joint can be affected by several factors, such as the tool geometry parameters and the process parameters.
The mechanical properties of the material were measured in University of Miskolc laboratories.
EN AW 5754 Mechanical Properties of Aluminium Alloy.
Ball, ‘Mechanical properties of extensible die clinched joints in titanium sheet materials’, Mater.