scholarly journals Nonlinear effects of micro-cracks on acoustic surface and wedge waves

2018 ◽  
Vol 44 (7) ◽  
pp. 744-750
Author(s):  
M. Rjelka ◽  
P. D. Pupyrev ◽  
B. Koehler ◽  
A. P. Mayer
Keyword(s):  
Nonlinear Effects ◽  
Micro Cracks ◽  
Wedge Waves

Nonlinear effects of micro-cracks on long-wavelength symmetric Lamb waves

Ultrasonics ◽  
2018 ◽  
Vol 90 ◽  
pp. 98-108 ◽  
Author(s):  
Marek Rjelka ◽  
Bernd Köhler ◽  
Andreas Mayer
Keyword(s):  
Lamb Waves ◽  
Nonlinear Effects ◽  
Long Wavelength ◽  
Micro Cracks

Multiple Crossover Effects and Nonlinear Effects on Socio-Cultural Adjustment

2004 ◽  
Author(s):  
Riki Takeuchi ◽  
David P. Lepak ◽  
Sophia Marinova ◽  
Seokhwa Yun
Keyword(s):  
Nonlinear Effects ◽  
Cultural Adjustment ◽  
Crossover Effects

Nonlinear effects in a plasma

1966 ◽  
Vol 90 (11) ◽  
pp. 435-489 ◽  
Author(s):  
Vadim N. Tsytovich
Keyword(s):  
Nonlinear Effects

Nonlinear effects in metals under anomalous-skin conditions

1980 ◽  
Vol 130 (2) ◽  
pp. 357 ◽  
Author(s):  
T.S. Velichkina ◽  
O.I. Vasil'eva ◽  
A.N. Izrailenko ◽  
I.A. Yakovlev
Keyword(s):  
Nonlinear Effects ◽  
Skin Conditions

Some problems of investigation of nonlinear effects in elastomers with long cyclic destruction

2019 ◽  
pp. 77-88
Author(s):  
V.I. Dyrda ◽  
◽  
S.M. Grebenyuk ◽  
S.P. Sokol ◽  
S.B. Slobodian ◽  
...  
Keyword(s):  
Nonlinear Effects

Properties of Self-Compacting Cementitious Composite Materials Containing Cement Kiln Dust Powder

2020 ◽  
Vol 38 (6A) ◽  
pp. 879-886
Author(s):  
Ahmed S. Kadhim ◽  
Alaa A. Atiyah ◽  
Shakir A. Salih
Keyword(s):  
Composite Materials ◽  
Total Porosity ◽  
Cement Kiln Dust ◽  
Cement Kiln ◽  
Cementitious Composite ◽  
Cement Dust ◽  
Micro Cracks ◽  
Load Carrying ◽  
Sustainable Materials ◽  
Kiln Dust

This paper aims to investigate the influence of utilization micro cement kiln dust as a sustainable materials additive in order to reduce the voids and micro cracks in the cementitious mortar materials which cause a drastic reduction in the load carrying capacity of the element. Its therefore very important to decrease the pores and enhance the mechanical strength of the cementitious composite materials. In this article, the properties of self-compacting mortar containing micro cement dust additive was experimentally assessed. Micro cement dust powder was added to the self-compacting mortar in (1, 2, 3, 4 and 5 %) percentage by weight of cement to be used as cementitious sustainable materials. The experimental results indicated that the modification and enhancement of the workability of fresh mixture and the mechanical strengths of self-compacting mortar were increased as micro cement dust additives increases. Also; the water absorption and total porosity were decreased with increases of micro cement dust powder.

Temperature and Humidity Dependent Reliability Analysis of RGB LED Chips

2006 ◽  
Author(s):  
Jun-Xian Fu ◽  
Shukri Souri ◽  
James S. Harris
Keyword(s):  
Reliability Analysis ◽  
Printed Circuit Board ◽  
Light Emitting Diode ◽  
Circuit Board ◽  
Light Emitting ◽  
Printed Circuit ◽  
Root Cause ◽  
Micro Cracks ◽  
Temperature And Humidity

Abstract Temperature and humidity dependent reliability analysis was performed based on a case study involving an indicator printed-circuit board with surface-mounted multiple-die red, green and blue light-emitting diode chips. Reported intermittent failures were investigated and the root cause was attributed to a non-optimized reflow process that resulted in micro-cracks and delaminations within the molding resin of the chips.

Detection of Micro-Cracks in Electroluminescence Images of Photovoltaic Modules

2020 ◽  
Author(s):  
Natasha Mathias ◽  
Farheen Shaikh ◽  
Chirayu Thakur ◽  
Sweekrithi Shetty ◽  
Pratibha Dumane ◽  
...  
Keyword(s):  
Photovoltaic Modules ◽  
Micro Cracks
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