scholarly journals Study of the effective filtration method applicability for the control of composite materials stress-strain state

2018 ◽  
Vol 289 ◽  
pp. 012035
Author(s):  
V P Surzhikov ◽  
P I Fedotov ◽  
P N Khorsov
Keyword(s):  
Composite Materials ◽  
Strain State ◽  
Stress Strain ◽  
Filtration Method ◽  
Stress Strain State

Stress-Strain State Exploration of Stringer Made of Composite Materials Depending on Layers Stacking Structure

2018 ◽  
Vol 284 ◽  
pp. 71-76
Author(s):  
P.V. Solovyev ◽  
A.I. Gomzin ◽  
L.A. Ishbulatov ◽  
S.N. Galyshev ◽  
F.F. Musin
Keyword(s):  
Composite Materials ◽  
Cross Section ◽  
Strain State ◽  
Stress Strain ◽  
Stress Strain State ◽  
Airplane Wing ◽  
External Loads ◽  
Stacking Structure ◽  
Composite Carbon ◽  
Shaped Cross Section

In this article the results of stress-strain state investigation for composite airplane wing stringer with different layers stacking structures are presented. As an object of research, a stringer made of composite carbon with V-shaped cross-section is considered. Due to the stress-strain state analysis of various stringer structures, the most effective structure for stringer layers stacking is selected, both in the view of providing the most rigidity and optimal perception by the stringer the field of external loads, which are most typical for the conditions of its operation.

Criterion for Controlling the Stress-Strain State of Composite Dielectric Materials Using the Effective Filtration Method

2018 ◽  
Vol 781 ◽  
pp. 108-113
Author(s):  
Vladimir Surzhikov ◽  
Pavel Fedotov
Keyword(s):  
Strain State ◽  
Dielectric Materials ◽  
Mirror Image ◽  
Electromagnetic Response ◽  
Stress Strain ◽  
Coherent Signal ◽  
Filtration Method ◽  
Stress Strain State ◽  
Left And Right ◽  
Sand Filler

The paper presents a brief description of a process of an electromagnetic response generation from dielectric composite materials when they are subjected to an acoustic impulses, a recording method by capacitive receivers and criteria for controlling the stress-strain state (SSS) for this method. Also there are the results of studies of the applicability of the effective filtration method for the control of similar products from epoxy resin with sand filler. The formation of a response with a pronounced maximum and an excitation pulse symmetric with respect to the end time is determined when a coherent signal is input to the input of the system, which is a mirror image of the impulse response. The correlation coefficient between the left and right parts of the response was chosen as a criterion for controlling the SSS.

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