scholarly journals Experimental and numerical study on debonding damage propagation of brazed titanium alloy honeycomb under fatigue load

2021 ◽  
Vol 1948 (1) ◽  
pp. 012225
Author(s):  
Ruixiang Bai ◽  
Zhenfei Guo ◽  
Jianchao Zou
Keyword(s):  
Titanium Alloy ◽  
Numerical Study ◽  
Fatigue Load ◽  
Damage Propagation

Numerical Study on Fatigue Property of TC4 Titanium Alloy by Laser Shock Peening

Applied laser ◽  
2013 ◽  
Vol 33 (2) ◽  
pp. 131-138
Author(s):  
杨晶 Yang Jing ◽  
周建忠 Zhou Jianzhong ◽  
黄舒 Huang Shu ◽  
左立党 Zuo Lidang ◽  
季杏露 Ji Xinglu ◽  
...  
Keyword(s):  
Titanium Alloy ◽  
Numerical Study ◽  
Fatigue Property ◽  
Laser Shock Peening ◽  
Laser Shock ◽  
Tc4 Titanium Alloy ◽  
Shock Peening

Energy Efficiency in Thermally Assisted Machining of Titanium Alloy: A Numerical Study

2013 ◽  
Vol 135 (6) ◽  
Author(s):  
J. Ma ◽  
X. Ge ◽  
S. Lei
Keyword(s):  
Energy Efficiency ◽  
Titanium Alloy ◽  
Total Energy ◽  
Numerical Study ◽  
Cutting Speed ◽  
Operating Conditions ◽  
Energy Utilization ◽  
Depth Of Cut ◽  
Workpiece Material ◽  
Cutting Energy

This study investigates the energy utilization and efficiency in thermally assisted machining (TAM) of a titanium alloy using numerical simulation. AdvantEdge finite element method (FEM) is used to conduct the simulation of orthogonal machining of the workpiece. Thermal boundary conditions are specified to approximate laser preheating of the workpiece material. The effects of operating conditions (preheat temperature, cutting speed, depth of cut, and rake angle) on mechanical cutting energy, preheat energy, and energy efficiency are investigated. The results show that preheating the workpiece reduces the cutting energy but increases the total energy in TAM. There is significant potential to maximize total energy efficiency in TAM by optimal design of heating strategies and machining conditions.

Finite Element Analysis of Surface Residual Stress of Titanium Alloy TC4 Based on High Speed Cutting

2012 ◽  
Vol 500 ◽  
pp. 157-162 ◽  
Author(s):  
Zeng Hui Jiang ◽  
Xiao Liang Wang ◽  
Jian Hai Zhang ◽  
Xiao Ye Deng
Keyword(s):  
Residual Stress ◽  
Finite Element ◽  
Titanium Alloy ◽  
High Speed ◽  
Numerical Study ◽  
Cutting Speed ◽  
Cutting Process ◽  
Residual Tensile Stress ◽  
High Speed Cutting ◽  
Cutting Surface

Due to the complex structures of aviation products made of titanium alloy TC4, residual stress can be generated by the high speed cutting process at their surface which has an important influence on their fatigue strength and also service life. Therefore, in this paper, a 3D finite element model is built to analyze the cutting process with different tool parameters and to investigate the residual stress inside the processed surface. By the numerical study, when the cutting speed is 140 m/min, the residual tensile stress can be generated in the inner cutting surface, while the compressive residual stress in the outer cutting surface. Residual compressive stress can be enhanced by choosing the smaller tool rake angle, the bigger tool relief angle and the bigger cutting edge radius properly.

Numerical Study of Laser Cutting of Titanium Alloy (TI-6Al-4V)

2014 ◽  
Vol 592-594 ◽  
pp. 579-583
Author(s):  
Vipin Mittal ◽  
Pawan Sharma ◽  
Vijay Kr. Patel ◽  
Vikas Pandey ◽  
Vinod Kumar
Keyword(s):  
Titanium Alloy ◽  
Laser Cutting ◽  
Numerical Study ◽  
Element Model ◽  
Effective Control ◽  
Work Piece ◽  
Laser Interaction ◽  
Fourier Law ◽  
Ansys Software ◽  
Temperature Dependent

A finite element model has been developed utilizing the commercial ANSYS software to determine the temperature distribution & heat affected zone in laser cutting of titanium alloy (Ti-6%Al-4%V).The main aim of this paper is to determine the temperature reached in the vicinity of the location where the laser interaction with the work piece material takes place. This model is based on Fourier law of heat conduction and Gaussian distribution of laser. Temperature dependent thermal and mechanical properties of material are assumed in this analysis. Result obtained are then analyzed and thermal effect is then understood for the effective control of the process.

A numerical study of a nonlocal model of damage propagation under chemical aggression

2003 ◽  
Vol 14 (4) ◽  
pp. 447-464 ◽  
Author(s):  
R. NATALINI ◽  
C. NITSCH ◽  
G. PONTRELLI ◽  
S. SBARAGLIA
Keyword(s):  
Numerical Study ◽  
Nonlocal Model ◽  
Damage Propagation
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