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Article
Fatigue life prediction analysis of automobile suspension system bracket considering residual stress due to thermal stress
The stabilizer-bracket, one of the parts constituting the suspension, is mainly manufactured through welding due to its complicated shape. Shape fabrication through welding has residual stress due to mechanica...
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Article
Study on Estimation Method for Maximum Temperature of Multi-layered Micro-probe by Joule-Heating
In this study, a method which would improve reliability of coated vertical type micro-probe under Joule heating is described. The method is to decouple the mechanical and electrical characteristics of a probe....
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Chapter
Fatigue Safety Design of Automotive Rear Sub-frame by Using CAE (Computer Aided Engineering) Static Analysis
Reducing vehicle weight and develo** alternative materials, like aluminum and magnesium alloys, are current topics of interest in the automobile industries. Therefore, in the present study, the structure ana...
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Article
New non-contact measurement method of deformation at tensile test of thin film via digital image correlation technique
Digital image correlation technique has been widely and effectively applied in the measurement of material properties. This paper presents a new method named Stride-Crawl Approaching Method by combining the st...
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Chapter
Basic Evaluation Technology Development of Battery Installation Safety for Electric Vehicles
A common feature of electric vehicles is that they do not emit exhaust gases, such as CO2 or Nox, have low noise and vibration harshness (NVH), and are silent as a result of their using secondary electric energy,...
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Article
Machine learning-based imaging system for surface defect inspection
Modern inspection systems based on smart sensor technology like image processing and machine vision have been widely spread into several fields of industry such as process control, manufacturing, and robotics ...
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Article
Study on effect of mean stress on fatigue life prediction of thin film structure
This paper describes the effect of mean stress on fatigue life prediction of structure made with thin film. It is well known that the mean stress influences fatigue life prediction of mechanical structure. We ...
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Article
New measurement method of Poisson’s ratio of thin films by applying digital image correlation technique
This paper describes a new method to measure the Poisson’s ratio of thin films by applying digital image correlation technique. Image regions in region of interest (ROI) before and after deformation are compar...
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Article
Optimal design of camber link component for light weight automobile using CAE (Computer Aided Engineering)
Increasing the fuel economy has been an inevitable issue for the development of new cars, and one of the important measures to improve the fuel economy is to decrease the vehicle weight. In this study, savings...
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Chapter
Design of Driveline Test Bench for Noise and Vibration Harshness Improvement of Automotive Chassis Components System
The test bench for handling the vibration input and output in a driveline is presented in this contribution. In the experiment, the rear subframe and propeller shafts and axle were composed and mounted with ru...
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Article
Residual strain measurement of piezoelectric multilayers by spiral structure
A new structure is described to measure the residual strain of thin film of piezoelectric multi-layers. The spiral shaped structure consists of the four fixed-guided beams. Piezoelectric multilayers consisting...
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Article
Determination of tensile properties and residual stresses of Ni-Co thin films
This paper reports tensile properties and residual stresses of Ni-Co thin films. To measure elastic (and plastic) properties, direct tensile tests using dog-bone type specimens are performed first. Assuming th...
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Chapter and Conference Paper
Influence of Width of Specimen on Tensile Properties of NiCo Thin Film
This paper represents the results of tensile test for NiCo thin films, to investigate the size effect on tensile properties. An axial loading tensile tester developed by authors was used to measure the mechani...
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Chapter and Conference Paper
Dependency of Micro-mechanical Properties of Gold Thin Films on Grain Size
Micro-tensile properties of Au thin films with different grain sizes were measured using micro-tensile tests and the effect of grain sizes of the films on the properties was investigated. The micro-tensile spe...
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Article
Effect of Fabrication on High Cycle Fatigue Properties of Copper Thin Films
The influence of fabrication on the tensile and fatigue behavior of copper films manufactured by 3 kinds of fabrication methods was investigated. The tensile and high cycle fatigue tests were performed using t...
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Article
FEM analysis of multilayered MEMS device under thermal and residual stress
It is essential to ensure reliability to produce a Micro-Electro Mechanical Systems(MEMS) on commercial scale. Reliability problem in inkjet printhead, one of MEMS, is also very important. To eject an ink drop...
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Article
Prediction of residual stress distribution in multi-stacked thin film by curvature measurement and iterative FEA
In this study, residual stress distribution in multi-stacked film by MEMS (Micro-Electro Mechanical System) process is predicted using Finite Element method FEMi. We develop a finite element program for residu...
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Article
Fatigue test of MEMS device : a monolithic inkjet print
A testing system was developed to improve the reliability of printhead and several printheads were tested. We developed a thermally driven monolithic inkjet printhead comprising dome-shaped ink chambers, thin ...
