Adhesives. Determination of the time to rupture of bonded joints under static load

2007 ◽  
Keyword(s):  
Static Load ◽  
Bonded Joints ◽  
Time To Rupture

Evaluation of Intensity of Singularity at 3D Piezoelectric Bonded Joints Using a Conservative Integral

2015 ◽  
Author(s):  
Chonlada Luangarpa ◽  
Hideo Koguchi
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Electric Potential ◽  
Three Dimensional ◽  
Stress Singularity ◽  
Bonded Joints ◽  
Conservative Integral ◽  
Dimensional Finite Element ◽  
Three Dimensional Finite Element

In the present study, a conservative integral based on the Betti reciprocal principle is formulated in order to obtain the intensity of singularity at a vertex of the interface in three-dimensional piezoelectric bi-material bonded joints. To our knowledge, there are few studies on the determination of the intensity of singularity in the three-dimensional piezoelectric bonded joints. In addition, no study on the determination of the intensity of singularity in the 3D piezoelectric bonded joints using the conservative integral has been conducted. Eigenanalysis formulated using a three-dimensional finite element method (FEM) is used to calculate the order of stress singularity, angular variables of mechanical displacements, stresses, electric displacements and electric potential. In order to investigate the influence of an integral area on the accuracy of the results, models with various integral areas are used. The results are compared with those obtained from FEM.

Ageing Condition Determination of Bonded Joints by Terahertz Spectroscopy

2020 ◽  
pp. 127-138
Author(s):  
Jochen Taiber ◽  
Martin Kahlmeyer ◽  
Andreas Winkel ◽  
Eva-Maria Stübling ◽  
Fatima Taleb ◽  
...  
Keyword(s):  
Terahertz Spectroscopy ◽  
Bonded Joints ◽  
Ageing Condition
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