Simulation of Tensile Test of the 1/2Y Welded Joint Made of Ultra High Strength Steel

2012 ◽  
Vol 726 ◽  
pp. 110-117 ◽  
Author(s):  
Jarosław Galkiewicz
Keyword(s):  
Numerical Simulation ◽  
Finite Element Method ◽  
Finite Element ◽  
Detailed Analysis ◽  
High Strength Steel ◽  
Welded Joint ◽  
Constitutive Relations ◽  
High Strength ◽  
Ultra High Strength Steel ◽  
Simulation Results

The detailed analysis of the tensile properties of the 1/2Y welded joint made of ultra-high strength steel S 960 QC was carried out. The analysis concerned various parts of welded joint and has been carried out with the help of both experiment and numerical simulation. Results were compared with the data measured using the ARAMIS system. The purpose of the analysis was to provide the constitutive relations for detailed analysis of the welded joint by finite element method.

Research on the Numerical Simulation of Hot Stamping for High Strength Steel

2014 ◽  
Vol 898 ◽  
pp. 136-139
Author(s):  
Chang Feng Men ◽  
Wen Wen Du ◽  
Cui Hong Han
Keyword(s):  
Numerical Simulation ◽  
Finite Element ◽  
High Strength Steel ◽  
Hot Stamping ◽  
High Strength ◽  
Nonlinear Finite Element ◽  
Weight Percentage ◽  
Finite Element Software ◽  
Simulation Results ◽  
Die Temperature

In order to research on the hot stamping property of high strength steel, the stamping forming of USIBOR1500P is simulated by the nonlinear finite element software Dynaform and Ansys/ls-dyna. The initial data simulated on USIBOR1500P is obtained by the hot tensile test. The simulation results show that the martensite weight percentage and Vickers hardness are in inverse proportion to stamping speed and initial die temperature.

A study of azimuthal electromagnetic wave LWD based on self-adaptive hp finite element method

2018 ◽  
Vol 32 (34n36) ◽  
pp. 1840073
Author(s):  
Hui Li ◽  
Yi-Bo Jiang ◽  
Jian-Wen Cai
Keyword(s):  
Numerical Simulation ◽  
Finite Element Method ◽  
Finite Element ◽  
Electromagnetic Wave ◽  
Real Time ◽  
Simulation Results ◽  
Peak Value ◽  
Element Method ◽  
Self Adaptive ◽  
Hp Finite Element

Azimuthal electromagnetic wave logging-while-drilling (LWD) technology can detect weak electromagnetic wave signal and realize real-time resistivity imaging. It has great values to reduce drilling cost and increase drilling rate. In this paper, self-adaptive hp finite element method (FEM) has been used to study the azimuthal resistivity LWD responses in different conditions. Numerical simulation results show that amplitude attenuation and phase shift of directional electromagnetic wave signals are closely related to induced magnetic field and azimuthal angle. The peak value and polarity of geological guidance signals can be used to distinguish reservoir interface and achieve real-time geosteering drilling. Numerical simulation results also show the accuracy of the self-adaptive hp FEM and provide physical interpretation of peak value and polarity of the geological guidance signals.

The Numerical Simulation of Effective Elastic Response for WC-Co Cemented Carbide

2015 ◽  
Vol 1096 ◽  
pp. 417-421
Author(s):  
Pei Luan Li ◽  
Zi Qian Huang
Keyword(s):  
Numerical Simulation ◽  
Finite Element Method ◽  
Finite Element ◽  
Theoretical Model ◽  
Material Properties ◽  
Cemented Carbide ◽  
Elastic Response ◽  
The Finite Element Method ◽  
Simulation Results ◽  
Element Method

By the use of finite element method, this paper predicts the effects of the shapes of reinforcements with different ductility (Co) on the effective elastic response for WC-Co cemented carbide. This paper conducts a comparative study on the material properties obtained through theoretical model, numerical simulation and experimental observations. Simulation results indicate that the finite element method is more sophisticated than the theoretical prediction.

Numerical Simulation on Hydrogen Dispersion in Automobiles due to Storage Cylinder Failure

2011 ◽  
Author(s):  
Yan-Lei Liu ◽  
Jin-Yang Zheng ◽  
Shu-Xin Han ◽  
Yong-Zhi Zhao
Keyword(s):  
Numerical Simulation ◽  
Finite Element Method ◽  
Finite Element ◽  
Numerical Model ◽  
Hydrogen Sensor ◽  
High Concentration ◽  
Concentration Region ◽  
Species Transport ◽  
Safety Design ◽  
Simulation Results

A numerical model for dispersion of hydrogen in hydrogen powered automobiles was established basing on finite element method with species transport and reaction module of FLUENT. And corresponding numerical simulations were done in order to analysis the dispersion of hydrogen due to leakage from different position of the storage cylinder on the automobiles. Also, the distribution of the hazard region due to hydrogen dispersion was obtained. The simulation results show that the baffle above the cylinder can accumulate the hydrogen. Therefore, the high concentration region of hydrogen exists near the baffle. The study can provide reference for hydrogen sensor placement and safety design of hydrogen powered automobiles.

GPU Accelerated Finite Element Simulation for Ultra-High Strength Steel Quenching

2013 ◽  
Vol 842 ◽  
pp. 337-340
Author(s):  
Chao Wang ◽  
Bin Zhu ◽  
Liang Wang ◽  
Yi Lin Wang ◽  
Yi Sheng Zhang
Keyword(s):  
Finite Element ◽  
Latent Heat ◽  
High Strength Steel ◽  
Thermal Contact ◽  
Hot Stamping ◽  
High Strength ◽  
Heat Processing ◽  
Processing Unit ◽  
Ultra High Strength Steel ◽  
Quenching Process

During the hot stamping of ultra-high strength steel (UHSS), the quenching effect of the mold on the sheet plays an important role to achieve the transition from austenite to martensite. Thus a finite element model for the quenching process of UHSS is established in this paper. The key points of the model include contact thermal conduction and the latent heat processing of phase transforming. Finite element program has been developed to calculate the temperature field of the UHSS quenching process, and temperature measurement device was used to get the temperature-time curve of the mold and the sheet to validate the calculation results. It can be concluded that the latent heat and thermal contact resistance have a critical influence on the temperature filed of the sheet during the hot stamping process. Finally, the parallel computation technology based on GPU(Graphics processing unit) was adopted to accelerate the calculation.

Numerical Simulation and Experimental Research on Multi-Position Progressive Stamping Process of Automotive Structural Part

2012 ◽  
Vol 271-272 ◽  
pp. 1366-1371
Author(s):  
Qin Xiang Xia ◽  
Teng Xu ◽  
Guang Ming Wei ◽  
Fu Yuan Ye
Keyword(s):  
Numerical Simulation ◽  
Finite Element ◽  
Experimental Research ◽  
High Strength ◽  
Component Part ◽  
Progressive Die ◽  
Structural Part ◽  
Fea Simulation ◽  
Finite Element Numerical Simulation ◽  
Simulation Results

Multi-position progressive stamping is widely used in industrial fields, such as electronic, automobile and appliance, etc. Finite element numerical simulation has been an effective method to analyze the deformation of multi-position progressive stamping, the progressive die with 13 positions for the high strength steel automotive soleplate component part was manufactured based on the FEA simulation results obtained by multi-position multi-operation modeling method, and the corresponding progressive stamping experiments were carried out. The experimental results of the forward deep drawing of position 3 were further compared with the simulation ones, the results conform well to each other.

Numerical Simulation on Interface Crack Propagation for Non-Uniform Welded Joint

2012 ◽  
Vol 602-604 ◽  
pp. 2065-2068
Author(s):  
Xiang Hong Zhang ◽  
Can Duo Shen ◽  
Chang Qing Sun
Keyword(s):  
Numerical Simulation ◽  
Finite Element Method ◽  
Finite Element ◽  
Composite Material ◽  
Normal Stress ◽  
Fracture Resistance ◽  
Welded Joint ◽  
The Finite Element Method ◽  
Stress Criterion ◽  
Maximum Normal Stress

Maximum normal stress criterion can be used to determine the cracking angle in the uniform and non-uniform zone. According to this theory, the propagating process of the crack in non-uniform composite material is simulated based on the finite element method. The results show that the crack advances wave-like and basically along the direction perpendicular to the maximum normal stress, which is of great guiding significance for the fracture resistance of such kind of structure.

Numerical Simulation for Precision Roll-Forging of Automobile Front Axle

2012 ◽  
Vol 602-604 ◽  
pp. 1850-1854 ◽  
Author(s):  
Ru Xiong Li ◽  
Song Hua Jiao
Keyword(s):  
Numerical Simulation ◽  
Finite Element Method ◽  
Finite Element ◽  
Front Axle ◽  
Die Design ◽  
Time Curve ◽  
Forging Process ◽  
Simulation Results ◽  
Force Time ◽  
Element Method

Roll forging process for automobile front axle has been simulated by using a rigid viscoplastic finite element method, force-time curve have been obtained and analyzed. On the basis of simulation result, typical characteristics of roll forging process have been explained. It concluded that simulation results could guide the development of roll forging and die design for automobile front axle.

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