Numerical Studies on Laser Welding Process

2013 ◽  
Vol 440 ◽  
pp. 158-164 ◽  
Author(s):  
Xiao Cong He
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Laser Welding ◽  
Welding Process ◽  
Element Analysis ◽  
Lightweight Structures ◽  
Numerical Studies ◽  
The Finite Element Analysis ◽  
Laser Welding Process ◽  
Selection Of

Laser welding is widely adopted in different industry fields to assemble lightweight structures. Recent research developments relating to finite element analysis of laser welding process is reviewed in this paper. It is concluded that the finite element analysis of laser welding process will allow many different designs to be simulated in order to perform a selection of different system parameters before testing, which would currently take too long to perform or be prohibitively expensive in practice. The main methods used in finite element analysis of laser welding process are discussed and illustrated with brief case studies from the literature.

scholarly journals A Review on Numerical Analysis of RC Flat Slabs Exposed to Fire

2020 ◽  
Vol 27 (1) ◽  
pp. 1-5
Author(s):  
Hanadi Naji ◽  
Nibras Khalid ◽  
Mutaz Medhlom
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Numerical Analysis ◽  
Bending Moment ◽  
Mechanical And Thermal Properties ◽  
Vertical Deflection ◽  
Element Analysis ◽  
Flat Slabs ◽  
Numerical Studies ◽  
The Finite Element Analysis

This paper aims at presenting and discussing the numerical studies performed to estimate the mechanical and thermal behavior of RC flat slabs at elevated temperature and fire. The numerical analysis is carried out using finite element programs by developing models to simulate the performance of the buildings subjected to fire. The mechanical and thermal properties of the materials obtained from the experimental work are involved in the modeling that the outcomes will be more realistic. Many parameters related to fire resistance of the flat slabs have been studied and the finite element analysis results reveal that the width and thickness of the slab, the temperature gradient, the fire direction, the exposure duration and the thermal restraint are important factors that influence the vertical deflection, bending moment and force membrane of the flat slabs exposed to fire. However, the validation of the models is verified by comparing their results to the available experimental date. The finite element modeling contributes in saving cost and time consumed by experiments.

Design of the Lightweight Structure and its Mechanical Properties

2013 ◽  
Vol 461 ◽  
pp. 57-62
Author(s):  
Xiao Ting Jiang ◽  
Ce Guo ◽  
Xiu Yan Cao ◽  
Zhen Yu Lu
Keyword(s):  
Mechanical Properties ◽  
Finite Element Analysis ◽  
Finite Element ◽  
Fiber Material ◽  
Element Analysis ◽  
Static Compression ◽  
Lightweight Structures ◽  
Carbon Fiber Material ◽  
The Finite Element Analysis ◽  
Lightweight Structure

Based on the microstructure of the cross-section of the beetle's elytra, a kind of bio-inspiredlightweight structure was designed and made by the carbon fiber material. The compressive andshear mechanical properties of the lightweight structures were studied with finite element method.In addition, quasi-static compression experiments of the structure samples were carried out. Theexperimental results and the finite element analysis results were compared and analyzed, whichproved the effectiveness of the finite element analysis.

Product Based Material Testing for Hyperelastic Suspension Jounce Bumper Design with FEA

2010 ◽  
Vol 450 ◽  
pp. 119-123 ◽  
Author(s):  
Kemal Çalışkan ◽  
Erhan Ilhan Konukseven (1) ◽  
Y. Samim Ünlüsoy
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Material Model ◽  
Material Testing ◽  
Critical Examination ◽  
Element Analysis ◽  
Hyperelastic Materials ◽  
Testing Procedures ◽  
The Finite Element Analysis ◽  
Selection Of

The basic problem in the finite element analysis of parts made of hyperelastic materials is the identification of mathematical material model coefficients. Furthermore, selection of a suitable mathematical hyperelastic material model may not be straightforward. In this study, a systematic design methodology is presented for hyperelastic suspension jounce bumpers. The presented methodology involves a critical examination of material testing procedures, material model selection, and coefficient identification. The identified material model coefficients are verified through comparison of the finite element analysis results with actual tests.

scholarly journals Ultrasonic Welding of Magnesium–Titanium Dissimilar Metals: A Study on Thermo-mechanical Analyses of Welding Process by Experimentation and Finite Element Method

2019 ◽  
Vol 32 (1) ◽  
Author(s):  
Dewang Zhao ◽  
Daxin Ren ◽  
Kunmin Zhao ◽  
Pan Sun ◽  
Xinglin Guo ◽  
...  
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Titanium Alloy ◽  
Magnesium Alloy ◽  
Welding Process ◽  
Ultrasonic Welding ◽  
Maximum Temperature ◽  
Element Analysis ◽  
The Finite Element Analysis ◽  
Thermal Mechanism

AbstractUltrasonic welding is an effective ways to achieve a non-reactive/immiscible heterogeneous metal connection, such as the connection of magnesium alloy and titanium alloy. But the thermal mechanism of magnesium alloy/titanium alloy ultrasonic welding has not been defined clearly. In this paper, the experimental and the finite element analysis were adopted to study the thermal mechanism during welding. Through the test, the temperature variation law during the welding process is obtained, and the accuracy of the finite element model is verified. The microscopic analysis indicates that at the welding time of 0.5 s, the magnesium alloy in the center of the solder joint is partially melted and generates the liquid phase. Through the finite element analysis, the friction coefficient of the magnesium–titanium ultrasonic welding interface can be considered as an average constant value of 0.28. The maximum temperature at the interface can exceed 600 °C to reach the melting point temperature of the magnesium alloy. The plastic deformation begins after 0.35 s and occurs at the magnesium side at the center of the interface.

Simulation and Analysis of Water Pump Bearing Assembly Based on ANSYS

2014 ◽  
Vol 487 ◽  
pp. 455-459 ◽  
Author(s):  
Yuan Zhang ◽  
Qiang Liu ◽  
Guang Han ◽  
Jian Wang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Maximum Stress ◽  
Element Analysis ◽  
Maximum Deformation ◽  
Assembly Tolerance ◽  
The Press ◽  
The Finite Element Analysis ◽  
Bearing Assembly ◽  
Selection Of

Finite element analysis has been done to analyze pump bearing assembly in interference assembly condition by ANSYS software. The press-in assembly environment has been simulated, and the maximum stress and maximum deformation of inner race have been analyzed. Studies show that with the increase of bearing size, the change law of maximum stress and maximum deformation does not single unidirectionally increase or decrease simply. At the same time, the interference value also influences the change law. So, in the bearing assembly tolerance selection the influence of the interference must be considered fully. The finite element analysis can guide the selection of fit tolerance.

scholarly journals Computational consistency of the material models and boundary conditions for finite element analyses on cantilever beams

2018 ◽  
Vol 10 (6) ◽  
pp. 168781401878002 ◽  
Author(s):  
Wei-chen Lee ◽  
Chen-hao Zhang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Boundary Conditions ◽  
Material Model ◽  
Cantilever Beams ◽  
Element Analysis ◽  
Material Models ◽  
The Finite Element Analysis ◽  
Selection Of ◽  
Good Agreement

The objective of this research was to investigate the effects of material models, element types, and boundary conditions on the consistency of finite element analysis. Two cantilever beams were used; one made of stainless steel SUS301 3/4H and the other made of polymer polyoxymethylene. The load–deflection curves of the two cantilever beams obtained by experiments were compared to those obtained by finite element analysis, where the material models—including bilinear, trilinear, and multi-linear—were used. Four element types—beam, plane stress, shell, and solid—were also employed with the material models to obtain the simulated load–deflection curves of the cantilever beams. It was found that bilinear material models had the stiffest behavior due to their overestimated yield strength. In addition, by applying a finite displacement to simulate the grip of the cantilever beams, the discrepancy between the simulated permanent set and the experimental set could be reduced from 80% to 5%. To sum up, both the selection of the material model and the setup of the boundary conditions are critical for obtaining good agreement between the finite element analysis results and the experimental data.

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