Sort by:
Publication Type:
Open access:
Publication Date:
Periodicals:
Search results
Online since: January 2015
Authors: Yan Chen, Yu Can Fu, Xing Wei Zheng, Guo Fu Ying
The degree and the depth of work hardening were significantly affected by the axial depth of cut and feed per tooth.
Especially, to ensure the size of the composite structural components after forming, Invar36 has been used as a material for forming mould in the field of aerospace for it can match the thermal expansion properties of composite material[2-3].
Experimental Procedure Chemical composition and mechanical properties of Invar 36 were shown in Table 1 and Table 2.
Table 1 Chemical composition of Invar36 C P S Si Mn Ni Fe £0.05% £0.02% £0.02% £0.3% £0.6% £35.0%~37.0% Rest Table 2 Mechanical properties of Invar36 Mechanical properties Value Tensile strength (MPa) 590 Yield strength (MPa) 410 Elongation rate (%) 30~45 Hardness (HV) 125~140 Elastic modulus (GPa) 141 All the milling experiments were carried out on a 5-axis milling machine center (MIKRON UCP 710) as shown in Fig. 1(a).
In this work, cutting speed, feed per tooth and axial depth of cutting parameters were set as control factors with three levels respectively and work hardening was set as response factor.
Especially, to ensure the size of the composite structural components after forming, Invar36 has been used as a material for forming mould in the field of aerospace for it can match the thermal expansion properties of composite material[2-3].
Experimental Procedure Chemical composition and mechanical properties of Invar 36 were shown in Table 1 and Table 2.
Table 1 Chemical composition of Invar36 C P S Si Mn Ni Fe £0.05% £0.02% £0.02% £0.3% £0.6% £35.0%~37.0% Rest Table 2 Mechanical properties of Invar36 Mechanical properties Value Tensile strength (MPa) 590 Yield strength (MPa) 410 Elongation rate (%) 30~45 Hardness (HV) 125~140 Elastic modulus (GPa) 141 All the milling experiments were carried out on a 5-axis milling machine center (MIKRON UCP 710) as shown in Fig. 1(a).
In this work, cutting speed, feed per tooth and axial depth of cutting parameters were set as control factors with three levels respectively and work hardening was set as response factor.
Online since: July 2014
Authors: Yang Qiao, Qiu Yue Cui, Tong Hui Liu, Pei Quan Guo
Compared to the previous two generations of powder metallurgy superalloy, FGH97 has a higher creep rupture strength, creep resistance, low crack growth rate and other advantages, it also has excellent mechanical properties in temperature of 650℃~750℃.
In spite of working in complex stress environment and high temperature, FGH97 can maintain excellent low cycle fatigue properties and thermal fatigue properties.
The quality of powder directly affects the properties of the alloy.
The factors of influencing cutting performance is not only tool material but tool geometry parameters, they are directly related to the cutting force, cutting temperature, the quality of the machined surfaced and chip morphology.
The main deflection angle will affect the cutting force, tool wear, chip thickness and so on, they are the main factors to influence the machining precision and surface shape.
In spite of working in complex stress environment and high temperature, FGH97 can maintain excellent low cycle fatigue properties and thermal fatigue properties.
The quality of powder directly affects the properties of the alloy.
The factors of influencing cutting performance is not only tool material but tool geometry parameters, they are directly related to the cutting force, cutting temperature, the quality of the machined surfaced and chip morphology.
The main deflection angle will affect the cutting force, tool wear, chip thickness and so on, they are the main factors to influence the machining precision and surface shape.
Online since: September 2007
Authors: Alessandro Pirondi, Luca Collini, D. Fersini
FCG properties have been
evaluated at the centre and at the side of the weld, respectively.
The results are compared with FCG properties of base materials.
The results are compared with FCG properties of base materials.
Table 1 summarizes basic mechanical properties.
Table 1: mechanical properties of the two materials tested.
The results are compared with FCG properties of base materials.
The results are compared with FCG properties of base materials.
Table 1 summarizes basic mechanical properties.
Table 1: mechanical properties of the two materials tested.
Online since: October 2006
Authors: Ki Sung Kim, Kyung Su Kim, Kyung Ho Lee, Jung Min Kwon, Seong Mo Park, Nak Hoon Lee
The mechanical properties of all the base
metals of the welded component specimens of shipbuilding industries A and AH36 are shown in
Table 1 and 2.
Table 1 Mechanical properties obtained from tensile tests (INHA Univ.2003) [MPa].
The local strain is an important factor affecting fatigue life.
Fig.6 shows the stress and strain concentration factors.
Also FE analysis of a welded joint has difficulty analyzing geometries or properties conditions, and the procedure is complicated.
Table 1 Mechanical properties obtained from tensile tests (INHA Univ.2003) [MPa].
The local strain is an important factor affecting fatigue life.
Fig.6 shows the stress and strain concentration factors.
Also FE analysis of a welded joint has difficulty analyzing geometries or properties conditions, and the procedure is complicated.
Online since: July 2014
Authors: B. Uma Maheswar Gowd, Dilli Babu G, Sivaji Babu K
Delamination depends on many factors like machining parameters (speed, feed etc), cutting tool properties, work piece properties, machine tool vibrations.
Here, for this experimental purpose the predominant factors which affect the delamination were considered.
Mechanical properties evaluation of natural fiber coir composite.
Effects of plasma treatment on mechanical properties of rubber/cellulose fibre composites.
Effect of drilling parameters on the finish and mechanical properties of GFRP composites.
Here, for this experimental purpose the predominant factors which affect the delamination were considered.
Mechanical properties evaluation of natural fiber coir composite.
Effects of plasma treatment on mechanical properties of rubber/cellulose fibre composites.
Effect of drilling parameters on the finish and mechanical properties of GFRP composites.
Online since: September 2014
Authors: Marina V. Polonik, Evgenii V. Murashkin, Olga V. Dudko, Egor E. Rogachev
On the other hand, the residual stresses may serve as a positive factor in the process for shaping blank with predetermined geometrical and mechanical parameters.
There are some experimental parameters affecting the course of the process: the deformation rate, the level of heating, the holding time at high temperature and the cooling time.
All of them can be taken into account in the model by adding the viscosity properties (creep) of elastic-plastic material.
This module allows you to take into account only those material properties that have the greatest impact at this stage of deformation.
Preform adapts to loading only due to manifestations of creep properties.
There are some experimental parameters affecting the course of the process: the deformation rate, the level of heating, the holding time at high temperature and the cooling time.
All of them can be taken into account in the model by adding the viscosity properties (creep) of elastic-plastic material.
This module allows you to take into account only those material properties that have the greatest impact at this stage of deformation.
Preform adapts to loading only due to manifestations of creep properties.
Online since: February 2012
Authors: Pavel Hora, Florian Quetting, Karl Roll
When it comes to stochastic simulations, the respective parameters have to be recalculated according to the scattering of the mechanical material properties like yield or tensile strength.
Monitored material properties affecting strain hardening of metals are listed in delivery specifications and include tensile strength Rp02, yield strength Rm, fracture strain A80 and work hardening exponent n.
Classic methods One strategy is the direct specification of yield curves in dependency to the mechanical material properties yield strength Rm, tensile strength Rp02 and hardening exponent n.
For each material 150 Latin Hypercube samples have been used to represent the real distribution of mechanical material properties identified by quality control.
Summary In this paper, different approaches of incorporating stochastic influence of mechanical material properties scattering into existing virtual models have been discussed.
Monitored material properties affecting strain hardening of metals are listed in delivery specifications and include tensile strength Rp02, yield strength Rm, fracture strain A80 and work hardening exponent n.
Classic methods One strategy is the direct specification of yield curves in dependency to the mechanical material properties yield strength Rm, tensile strength Rp02 and hardening exponent n.
For each material 150 Latin Hypercube samples have been used to represent the real distribution of mechanical material properties identified by quality control.
Summary In this paper, different approaches of incorporating stochastic influence of mechanical material properties scattering into existing virtual models have been discussed.
Online since: September 2016
Authors: Ting Wang, Fu Xiang Wang, Jian Chen, Ming Fei Li, Zheng Qiang Lei
The revised criterion is adopted by API 1106 and CSA Z662 but different additional safety factors are added respectively [8,9].
The mechanical parameters can be calculated including stress, strain, stress intensity factor, J-integration, etc. can be calculated by utilizing finite element software such as ABAQUS and ANSYS.
Material properties Material mechanical properties include strength and fracture toughness data.
Welded joints are highly inhomogeneous in both microstructural and mechanical properties.
So the properties of the parent material, the weld metal, and the heat-affected zone (HAZ) need to be tested respectively.
The mechanical parameters can be calculated including stress, strain, stress intensity factor, J-integration, etc. can be calculated by utilizing finite element software such as ABAQUS and ANSYS.
Material properties Material mechanical properties include strength and fracture toughness data.
Welded joints are highly inhomogeneous in both microstructural and mechanical properties.
So the properties of the parent material, the weld metal, and the heat-affected zone (HAZ) need to be tested respectively.
Online since: August 2013
Authors: Rathanawan Magaraphan, S. Kamthai
Influence of Bagasse Carboxymethyl Cellulose Addition on
the Thermal and Mechanical Properties of PLA Composites
S.
The influence of CMCB content on the thermal and mechanical properties of the biocomposite was studied. 2.
The Tg of all samples from tan δ are almost the same. 3.3 Mechanical properties Table 2 reported the average values and standard deviation of the mechanical properties of the neat PLA and PLA/CMCB composites.
Mechanical properties of PLA/CMCB composites at CMCB different concentrations.
Kristiina, Mechanical properties of cellulose nanofiber (CNF) reinforced polylactic acid (PLA) prepared by twin screw extrusion.
The influence of CMCB content on the thermal and mechanical properties of the biocomposite was studied. 2.
The Tg of all samples from tan δ are almost the same. 3.3 Mechanical properties Table 2 reported the average values and standard deviation of the mechanical properties of the neat PLA and PLA/CMCB composites.
Mechanical properties of PLA/CMCB composites at CMCB different concentrations.
Kristiina, Mechanical properties of cellulose nanofiber (CNF) reinforced polylactic acid (PLA) prepared by twin screw extrusion.
Online since: December 2022
Authors: Farook Nehad Abed
Find the best combination of machining factors yields the lowest RL and highest MRR.
The control factors and their levels are listed in Table 1.
It illustrates how the control factors affect the response factors in statistical analysis.
The IP, it can be inferred, is an influential factor that directly affects both MRR and RL.
Migunov et al., “Dielectric properties of nanometer-thick barium-strontium titanate films,” Tech.
The control factors and their levels are listed in Table 1.
It illustrates how the control factors affect the response factors in statistical analysis.
The IP, it can be inferred, is an influential factor that directly affects both MRR and RL.
Migunov et al., “Dielectric properties of nanometer-thick barium-strontium titanate films,” Tech.