scholarly journals Experimental Study on the Riveted Joints in Glass Fibre Reinforced Plastics (GFRP)

2017 ◽  
Vol 64 (3) ◽  
pp. 301-313 ◽  
Author(s):  
Radosław Bielawski ◽  
Michał Kowalik ◽  
Karol Suprynowicz ◽  
Witold Rządkowski ◽  
Paweł Pyrzanowski
Keyword(s):  
Finite Element Method ◽  
Experimental Study ◽  
Finite Element ◽  
Measurement Methods ◽  
Image Correlation ◽  
Clamping Force ◽  
Reinforced Plastics ◽  
Riveted Joints ◽  
Glass Fibre Reinforced ◽  
Glass Fibre Reinforced Plastics

Abstract The aim of the paper is to validate the use of measurement methods in the study of GFRP joints. A number of tests were carried out by means of a tensile machine. The studies were concerned with rivet connection of composite materials. One performed two series of tests for two different forces and two fibre orientations. Using Finite Element Method (FEM) and Digital Image Correlation (DIC), strain maps in the test samples were defined. The results obtained with both methods were analysed and compared. The destructive force was analysed and, with the use of a strain gauge, the clamping force in a plane parallel to the annihilated sample was estimated. Destruction processes were evaluated and models of destruction were made for this type of materials taking into account their connections, such as riveting.

Numerical–Experimental Study for the Determination of the Structural Mechanical Behavior of the Wall of the Cranial Vault Using Finite Element Method and Image Correlation

2021 ◽  
pp. 141-162
Author(s):  
Juan Alfonso Beltrán-Fernández ◽  
Alejandro David González-Peña ◽  
Juan Carlos Hermida-Ochoa ◽  
José Enrique Rodríguez-Miramar ◽  
Edgar Alfonso Figueroa-Rodríguez ◽  
...  
Keyword(s):  
Finite Element Method ◽  
Experimental Study ◽  
Finite Element ◽  
Mechanical Behavior ◽  
Image Correlation ◽  
Cranial Vault ◽  
Element Method

Research of throwing areols of underground pipeline in permafrost

2021 ◽  
pp. 21-30
Author(s):  
T. S. Sultanmagomedov ◽  
◽  
R. N. Bakhtizin ◽  
S. M. Sultanmagomedov ◽  
T. M. Halikov ◽  
...  
Keyword(s):  
Finite Element Method ◽  
Experimental Study ◽  
Finite Element ◽  
Strain State ◽  
Operating Temperature ◽  
Operating Conditions ◽  
Loss Of Stability ◽  
Underground Pipeline ◽  
The Finite Element Method ◽  
Permafrost Thawing

Study is due to the possibility of loss of stability of the pipeline in the process of pumping a product with a positive operating temperature and the formation of thawing halos. The article presents the ways of solving the thermomechanical problem of pipeline displacement due to thawing. The rate of formation of a thawing halo is investigated depending on the initial temperatures of the soil and the pumped product. The developed monitoring system makes it possible to study the rate of occurrence of thawing halos in the process of pumping the product. An experimental study on the formation of thawing halos around the pipeline was carried out on an experimental model. A thermophysical comparative calculation of temperatures around the pipeline on a model by the finite element method has been carried out. Keywords: underground pipeline; permafrost; thawing halo; monitoring; operating conditions; stress–strain state.

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