Finite element modeling of residual stresses in machining induced by cutting using a tool with finite edge radius

2005 ◽  
Vol 47 (10) ◽  
pp. 1611-1628 ◽  
Author(s):  
K.C. Ee ◽  
O.W. Dillon ◽  
I.S. Jawahir
Keyword(s):  
Finite Element ◽  
Residual Stresses ◽  
Finite Element Modeling ◽  
Element Modeling ◽  
Edge Radius

Modeling of Cure-Induced Residual Stresses in 3D Woven Composites of Different Reinforcement Architectures

2013 ◽  
Vol 577-578 ◽  
pp. 253-256 ◽  
Author(s):  
Igor Tsukrov ◽  
Borys Drach ◽  
Harun Bayraktar ◽  
Jon Goering
Keyword(s):  
Residual Stress ◽  
Finite Element ◽  
Residual Stresses ◽  
Finite Element Modeling ◽  
Room Temperature ◽  
Woven Composites ◽  
Element Modeling ◽  
The Matrix ◽  
3D Woven Composites ◽  
Resin Curing

This paper presents finite element modeling effort to predict possible microcracking of the matrix in 3D woven composites during curing. Three different reinforcement architectures are considered: a ply-to-ply weave, a one-by-one and a two-by-two orthogonal through-thickness reinforcement. To realistically reproduce the as-woven geometry of the fabric, the data from the Digital Fabric Mechanics Analyzer software is used as input for finite element modeling. The curing processed is modeled in a simplified way as a uniform drop in temperature from the resin curing to room temperature. The simulations show that the amount of residual stress is strongly influenced by the presence of through-thickness reinforcement.

Three-Dimensional Finite Element Analysis on Precision Cutting for Tool with Nose Radius Considering Tool Edge Radius

2007 ◽  
Vol 10-12 ◽  
pp. 923-927
Author(s):  
Yuan Sheng Zhai ◽  
Ying Chun Liang ◽  
Qing Shun Bai
Keyword(s):  
Finite Element ◽  
Finite Element Modeling ◽  
Cutting Forces ◽  
Three Dimensional ◽  
Maximum Temperature ◽  
Nose Radius ◽  
Element Modeling ◽  
Tool Edge Radius ◽  
Edge Radius ◽  
Tool Edge

The finite element modeling and experimental validation of three-dimensional precision cutting of 3J33 maraging are presented. The commercial software MARC applied for the finite element modeling is studied the effect of tool nose radii considering tool edge radius on the principal cutting forces and the temperature fields. The model employs an updated Lagrangian formulation. The friction between the tool and the chip is assumed to follow a modified Coulomb friction law and the adaptive remeshing technique is using for the formation of chip. The tool edge radius significantly affects the cutting forces and the maximum temperature of the chip. The simulation results for tool with nose radius considering tool edge radius are compared with experimentally measured data and found to be in good agreement.

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