scholarly journals Optimal Structure of Computer Numerical Control Grinding Machine Based on Finite Element Method Simulation and Sensor Technology

2020 ◽  
Vol 32 (5) ◽  
pp. 1633
Author(s):  
Kun-Chieh Wang ◽  
Chi-Hsin Yang ◽  
Long Wu ◽  
Hao Gao
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Finite Element Method Simulation ◽  
Computer Numerical Control ◽  
Numerical Control ◽  
Optimal Structure ◽  
Sensor Technology ◽  
Grinding Machine ◽  
Element Method

scholarly journals Finite Element Method modeling of Additive Manufactured Compressor Wheel

2021 ◽  
Author(s):  
Márton Tamás Birosz ◽  
Mátyás Andó ◽  
Sudhanraj Jeganmohan
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Finite Element Method Simulation ◽  
Element Model ◽  
Tensile Tests ◽  
Raw Material ◽  
Isotropic Hardening ◽  
Compressor Wheel ◽  
Material Extrusion ◽  
Element Method

AbstractDesigning components is a complex task, which depends on the component function, the raw material, and the production technology. In the case of rotating parts with higher RPM, the creep and orientation are essential material properties. The PLA components made with the material extrusion process are more resistant than VeroWhite (material jetting) and behave similarly to weakly cross-linked elastomers. Also, based on the tensile tests, Young’s modulus shows minimal anisotropy. Multilinear isotropic hardening and modified time hardening models are used to create the finite element model. Based on the measurements, the finite element method simulation was identified. The deformation in the compressor wheel during rotation became definable. It was concluded that the strain of the compressor wheel manufactured with material extrusion technology is not significant.

scholarly journals A recommendation of computation of normal streeses in single point incremental forming technology

2014 ◽  
Vol 17 (1) ◽  
pp. 21-28
Author(s):  
Dien Khanh Le ◽  
Nam Thanh Nguyen ◽  
Binh Thien Nguyen
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Incremental Forming ◽  
Single Point ◽  
Finite Element Method Simulation ◽  
Recent Decade ◽  
Work Piece ◽  
Single Point Incremental Forming ◽  
Forming Technology ◽  
Element Method

Single Point Incremental Forming (SPIF) has become popular for metal sheet forming technology in industry in many advanced countries. In the recent decade, there were lots of related studies that have concentrated on this new technology by Finite Element Method as well as by empirical practice. There have had very rare studies by pure analytical theory and almost all these researches were based on the formula of ISEKI. However, we consider that this formula does not reflect yet the mechanics of destruction of the sheet work piece as well as the behavior of the sheet in reality. The main aim of this paper is to examine ISEKI’s formula and to suggest a new analytical computation of three elements of stresses at any random point on the sheet work piece. The suggested formula is carefully verified by the results of Finite Element Method simulation.

Optimization of Osteosynthesis Positioning in Mandibular Body Fracture Management using Numerical Finite Element Method Simulation and Polymeric Model Testing

2021 ◽  
Author(s):  
Omid Daqiq ◽  
Fred W. Wubs ◽  
Ruud R. M. Bos ◽  
Baucke van Minnen
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Mechanical Test ◽  
Body Height ◽  
Finite Element Method Simulation ◽  
Mechanical Tests ◽  
Body Fracture ◽  
Fracture Management ◽  
Mandibular Body ◽  
Element Method

Abstract The study aims to optimise surgical management for mandibular body fractures by application of finite element method (FEM) with verification from polymeric model tests. The study investigates two issues regarding the application of osteosynthesis plates for mandibular body fractures: the effect of miniplate positioning and mandibular body height decrease. Computed tomography (CT) images of cadaveric mandibles with heights of resp. 21, 15, and 10 mm were used to create a FEM-model with a unilateral straight-line fracture, fixated with a standard commercially available 6-hole 2 mm titanium miniplate. Outcomes were compared with a series of mechanical tests with polymeric models fixed in a customized device and loaded with a mechanical test bench. Firstly, the study illustrates that the optimal plate position appears to be the upper border. Secondly, lower mandibular height increases instability and requires a stronger fixation. Thirdly, optimal fracture reduction is essential for gaining stability. In conclusion, FEM and polymeric testing outcomes of unilateral non-comminuted fractures were highly comparable to the current opinions in mandibular fracture treatment. In future, the FEM may be used to predict the treatment of more complex fractures. However, more analysis needs to be conducted to say whether FEM alone is sufficient for fracture analysis.

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