3D Finite Element Simulation for Turning of Hardened 45 Steel

2019 ◽  
Vol 13 (2) ◽  
pp. 181-188
Author(s):  
Meng Liu ◽  
Guohe Li ◽  
Xueli Zhao ◽  
Xiaole Qi ◽  
Shanshan Zhao
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Cutting Force ◽  
Finite Element Simulation ◽  
Orthogonal Experiment ◽  
Element Model ◽  
3D Finite Element ◽  
Element Simulation ◽  
Metal Machining ◽  
Single Factor Experiment

Background: Finite element simulation has become an important method for the mechanism research of metal machining in recent years. Objective: To study the cutting mechanism of hardened 45 steel (45HRC), and improve the processing efficiency and quality. Methods: A 3D oblique finite element model of traditional turning of hardened 45 steel based on ABAQUS was established in this paper. The feasibility of the finite element model was verified by experiment, and the influence of cutting parameters on cutting force was predicted by single factor experiment and orthogonal experiment based on simulation. Finally, the empirical formula of cutting force was fitted by MATLAB. Besides, a lot of patents on 3D finite element simulation for metal machining were studied. Results: The results show that the 3D oblique finite element model can predict three direction cutting force, the 3D chip shape, and other variables of metal machining and the prediction errors of three direction cutting force are 5%, 9.02%, and 8.56%. The results of single factor experiment and orthogonal experiment are in good agreement with similar research, which shows that the model can meet the needs for engineering application. Besides, the empirical formula and the prediction results of cutting force are helpful for the parameters optimization and tool design. Conclusion: A 3D oblique finite element model of traditional turning of hardened 45 steel is established, based on ABAQUS, and the validation is carried out by comparing with experiment.

Finite Element Simulation of Tire-Rim Interface

1989 ◽  
Vol 17 (4) ◽  
pp. 305-325 ◽  
Author(s):  
N. T. Tseng ◽  
R. G. Pelle ◽  
J. P. Chang
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Finite Element Simulation ◽  
Contact Pressure ◽  
Element Model ◽  
Experimental Measurements ◽  
Inflation Pressure ◽  
Interference Fit ◽  
Element Simulation ◽  
Rubber Composite

Abstract A finite element model was developed to simulate the tire-rim interface. Elastomers were modeled by nonlinear incompressible elements, whereas plies were simulated by cord-rubber composite elements. Gap elements were used to simulate the opening between tire and rim at zero inflation pressure. This opening closed when the inflation pressure was increased gradually. The predicted distribution of contact pressure at the tire-rim interface agreed very well with the available experimental measurements. Several variations of the tire-rim interference fit were analyzed.

Research on the Connection Performance of Variable Pitch of Screw Threaded Casing Based on 3D Finite Element Simulation Model

2012 ◽  
Vol 215-216 ◽  
pp. 1105-1110 ◽  
Author(s):  
Xiong Guo ◽  
Lv Long Zou ◽  
Bing Lu ◽  
Shi Liang Zhang ◽  
Xing Ren Su ◽  
...  
Keyword(s):  
Finite Element ◽  
Stress Distribution ◽  
Finite Element Simulation ◽  
Element Model ◽  
Static Structure ◽  
3D Finite Element ◽  
Variable Pitch ◽  
Element Simulation ◽  
Ansys Workbench

The connection performance of the large taper, multi-thread, variable pitch of screw threaded casing is researched by 3D finite element simulation on ANSYS Workbench. The 3D finite element model is created precisely. The stress distribution on the teeth of three kind variable pitch of screw threaded structure is studied by using the static structure of the contact analysis module. Contrasting stress distribution of the variable pitch of screw with of the equal pitch of screw under the same working condition, it is validated that design principle for the variable pitch of screw connection is correct. The influence of changes in the amount of variable pitch of screw to the whole stress distribution on teeth is discussed. The results show that the force distribution on the teeth of the variable pitch of screw connection is more uniform than equal pitch of screw, and will improve the overall carrying capacity. This study has its practical value to improve the connective performance of the threaded casing and enhance the product quality of threaded casing.

The Analysis of the Stiffness about the School Bus Based on Hyper Mesh

2014 ◽  
Vol 912-914 ◽  
pp. 806-809
Author(s):  
Ming Feng Zheng ◽  
Yue Chen ◽  
Ya Lin Yan
Keyword(s):  
Finite Element ◽  
Stress Concentration ◽  
Finite Element Model ◽  
Finite Element Simulation ◽  
Local Structure ◽  
Element Model ◽  
School Bus ◽  
Element Simulation ◽  
As Stress

Established a finite element model of the school bus based on the Hyper Mesh, take a finite element simulation about the various parts of the school bus parameters such as stress, displacement and deformation under 5 conditions. Through the analysis of the school bus to identify conditions displacement of stress more concentrated area as well as in operation, by optimizing improve the local structure of these regions,improve the stress concentration and safety.

Collapse Accidents Analysis and Finite Element Simulation of Fastener-Style Steel Tubular High-Formwork-Support

2011 ◽  
Vol 94-96 ◽  
pp. 1818-1823
Author(s):  
Guang Sheng Bian ◽  
Qiang Jia ◽  
An Ying Chen ◽  
Fang Gu
Keyword(s):  
Finite Element ◽  
Stability Analysis ◽  
Finite Element Model ◽  
Finite Element Simulation ◽  
Element Model ◽  
Collapse Mechanism ◽  
Analytical Results ◽  
Element Simulation ◽  
The Finite Element Model ◽  
Technical Measures

There were four collapse accidents of fastener-style steel tubular formwork support being investigated in the article. The collapse mechanism was researched. According to the collapse accidents, the finite element model was established. The whole stability analysis was done. The analytical results were the same with the conditions of accidents. The collapse mechanism was verified. According to the collapse mechanism, the security technical measures of high formwork support were put forward.

A Review on the Finite Element Modeling of the Particle Reinforced Metal Matrix Composites in Cutting Process

2020 ◽  
Vol 14 (1) ◽  
pp. 39-55
Author(s):  
Xiaole Qi ◽  
Guohe Li ◽  
Qi Zhang ◽  
Fei Sun
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Finite Element Model ◽  
Finite Element Simulation ◽  
Metal Matrix Composites ◽  
Metal Matrix ◽  
Element Model ◽  
Matrix Composites ◽  
Element Simulation ◽  
Element Method

Background:: Particle Reinforced Metal Matrix Composites (PRMMCs) are widely used because of the higher specific strength, better dimensional stability, lower thermal expansion coefficient, better wear and corrosion resistance. However, the existence of reinforcing particles makes it hard to machine. The main manifestations are as follows: severe tool wear, easy generation of debris tumors in processing, and many defects on the machined surface, etc. These seriously limit its wider application. The Finite Element Method (FEM) has been widely applied in the research of PRMMCs machining according to recent patents, which can improve the efficiency and reduce the cost of research. Therefore, it is necessary to carry out a deep research for the processing technology of PRMMCs. Methods:: In this paper, the latest research progress of finite element simulation of cutting PRMMCs was summarized. The key technologies of finite element simulation, including constitutive model, geometric model, friction model between chip and tool, fracture criterion and mesh generation, are comprehensively analyzed and summarized. The application in the specific processing methods was discussed, such as turning, milling, grinding, ultrasonic vibration grinding and drilling. The existing problems and development direction of the simulation of PRMMCs cutting are also given. Besides, a lot of patents on finite element simulation for PRMMCs machining were studied. Results:: Finite element model for the actual composition determines the accuracy of finite element simulation. Through the secondary development of finite element software, a more realistic finite element model of Particle reinforced metal matrix composites can be established. Conclusion:: Finite Element Method (FEM) provides a new approach for the study of mechanism of Particle reinforced metal matrix composites machining. Quantitative analysis and prediction of micro- details in cutting can be realized.

A novel approach to determining piezoelectric properties of nanogenerators based on PVDF nanofibers using iterative finite element simulation for walking energy harvesting

2020 ◽  
pp. 152808372092649 ◽  
Author(s):  
Mohammad Kashfi ◽  
Parisa Fakhri ◽  
Babak Amini ◽  
Neda Yavari ◽  
Bahram Rashidi ◽  
...  
Keyword(s):  
Finite Element ◽  
Energy Harvesting ◽  
Finite Element Model ◽  
Finite Element Simulation ◽  
Energy Harvester ◽  
Piezoelectric Properties ◽  
Element Model ◽  
Piezoelectric Response ◽  
Maximum Efficiency ◽  
Element Simulation

This study presents the experimental characterization and finite element investigation of a piezoelectric nanogenerator based on electrospun poly(vinylidene difluoride) (PVDF) nanofibers walking energy harvesting applications. The piezoelectric response of nanogenerator device was experimentally evaluated under low frequency cyclic impacts using PiezoTester. The impact test was then simulated and the obtained experimental applied force-time curve is implemented into the finite element model as the impactor external force. Based on mentioned procedure, a novel iterative finite element simulation was then introduced to determine the piezoelectric properties of PVDF nanofibers to avoid any redundant experiments. The experimental voltage-time was compared with voltage time obtained from optimized finite element model and a reasonable agreement was achieved between the numerical and experimental curves. Thereinafter, as a case study, a PVDF nanofibers nanogenerator integrated foam (PNIF) was simulated to use as an energy harvester in the shoe insole. The validated finite element model was then constructed to optimize the PNIF elasticity modulus to reach the maximum efficiency of energy harvester during human walking. The results showed that the best efficiency of the energy harvesting is achieved for 211.27 kPa PNIF modulus, which can generate 15.1 V. These results lead to the establishment of engineering design rules in the industrial scale for wearable power harvesting devices in the footwear industry.

Finite Element Simulation of Track Shoe and Ground Adhesion

2014 ◽  
Vol 644-650 ◽  
pp. 402-405
Author(s):  
Cong Bin Yang ◽  
Liang Gu ◽  
Qiang Li
Keyword(s):  
Finite Element ◽  
Constitutive Model ◽  
Boundary Conditions ◽  
Finite Element Model ◽  
Finite Element Modeling ◽  
Finite Element Simulation ◽  
Element Model ◽  
Elastic Model ◽  
Element Simulation ◽  
Coulomb Model

Soil constitutive model was established based on elastic model and Mohr-Coulomb model. Simplified common form track shoe was determined for finite element modeling. Loading and boundary conditions were determined based on the actual driving conditions of the vehicle. Meshing was based tetrahedron. Finite element model was compared with experiment to verify the validity.

3-D Flow Field Simulation for Extruding Part of Mixing-Extruding Machine

2010 ◽  
Vol 44-47 ◽  
pp. 122-126
Author(s):  
Chuan Sheng Wang ◽  
Shan Hu Li ◽  
Ping Fu ◽  
Chun Lei Lü
Keyword(s):  
Finite Element ◽  
Flow Field ◽  
Finite Element Model ◽  
Finite Element Simulation ◽  
Element Model ◽  
Double Cone ◽  
Flow Field Simulation ◽  
Single Screw ◽  
Field Simulation ◽  
Element Simulation

The physical, mathematical and finite element model of the extruding part of mixing-extruding machine was established to carry on the finite element simulation of the extrusion part flow field. Results showed that the double cone screw have better mixing and feeding properties than single screw.

Finite Element Simulation and Respond Surface Optimization on Stretch Bending of Square Tube Aluminum Profile

2011 ◽  
Vol 365 ◽  
pp. 28-32 ◽  
Author(s):  
Ke Feng Liang ◽  
Ze Zhong Chen ◽  
Shui Miao Wang ◽  
Jie Zheng
Keyword(s):  
Finite Element ◽  
Finite Element Simulation ◽  
Cross Section ◽  
Orthogonal Experiment ◽  
Element Model ◽  
Stretch Bending ◽  
Aluminum Profile ◽  
Element Simulation ◽  
Characteristic Points ◽  
Bending Radius

With the adoption of ABAQUS/Explicit as the simulation platform, a 3D finite element model has been established to simulate the stretch bending of square tube aluminum profile which is used as the door frame of fork lifter. Four characteristic points are put forward to evaluate the distortion of cross section during deformation, and the influence to distortion of cross section from some key parameters, such as bending radius and thickness of profile, is analyzed. An orthogonal experiment is designed to evaluate the influence to deformation from other forming parameters, including preload, fill rally and filling pressure which occurred in the stretch bending process. Then neural network based response surface method and genetic algorithm are used to optimize the parameters mentioned above. Finite element simulation proved that the optimized result is valuable to reduce the distortion of cross section of profile and improve formability.

Mechanics Model and Finite Element Simulation of High Speed Orthogonal Cutting of Titanium Alloy

2010 ◽  
Vol 139-141 ◽  
pp. 1101-1104
Author(s):  
Yong Yang ◽  
Yu Ling Wang ◽  
Chang He Li
Keyword(s):  
Finite Element ◽  
Titanium Alloy ◽  
Finite Element Model ◽  
Finite Element Simulation ◽  
High Speed ◽  
Orthogonal Cutting ◽  
Element Model ◽  
Simulation Accuracy ◽  
Element Simulation ◽  
Titanium Alloy Ti6al4v

Though a lot of research works have been done, some key technologies of finite element simulation have not been resolved completely. A detailed finite element model of high speed orthogonal cutting of titanium alloy Ti6Al4V is developed. Several mechanics models of cutting process, such as material constitutive model, chip separation model and chip damage model, are implemented to improve finite element simulation accuracy. The chip shape and cutting force agree well with experimental results, which show the finite element model developed in this study is reasonable. Using this finite element model, chip formation process of titanium alloy Ti6Al4V is simulated. Results indicate that the material between the shear bands is only weakly deformed, and the deformation is stronger on the tool side of the chip. This work will be a base for process parameter optimization, tool’s optimization selection and design during high speed cutting of difficult-to-cut titanium alloy.

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