Experimental study of the stress-strain state and load-carrying capacity of models of power-plant flywheels made of composite materials

1982 ◽  
Vol 14 (8) ◽  
pp. 1021-1024
Author(s):  
I. A. Kozlov ◽  
V. M. Leshchenko ◽  
A. B. Yudin
Keyword(s):  
Experimental Study ◽  
Composite Materials ◽  
Power Plant ◽  
Carrying Capacity ◽  
Strain State ◽  
Load Carrying Capacity ◽  
Stress Strain ◽  
Stress Strain State ◽  
Load Carrying

scholarly journals METHOD OF CALCULATING THE STRESSSTRAIN STATE OF FRAME STRUCTURES OF THE TRACTOR TRAILERS AT VARIOUS EXTERNAL INFLUENCES

2020 ◽  
pp. 5-5
Author(s):  
ANVAR A. TOGAEV ◽  
ABDULAZIZ A. SHERMUKHAMEDOV
Keyword(s):  
Carrying Capacity ◽  
Strain State ◽  
Load Carrying Capacity ◽  
Strength Parameters ◽  
Stress Strain ◽  
Method Of Calculation ◽  
Stress Strain State ◽  
Load Carrying ◽  
Experimental Researches ◽  
Good Agreement

In the article on an example of the tractor-trailer, a load-carrying capacity of 4 tons considers the technique for calculating the stress-strain state of the trailer frame. The comparative analysis of the results of theoretical and experimental researches is given. The calculations take into account the specific road conditions of the cotton-producing countries, which occupy four categories of road sections. The proposed method of calculation of the stress-strain state of the frame gives a good agreement with the experimental data (maximum values of stress in the range 11%) and can be used in justifying the strength parameters of tractor-trailers.

scholarly journals Method of Calculating the Stress-Strain State of Frame Structures of the Autotractor Trailers for Static Loading Conditions

2020 ◽  
Vol 8 (5) ◽  
pp. 4619-4623
Keyword(s):  
Carrying Capacity ◽  
Static Loading ◽  
Strain State ◽  
Load Carrying Capacity ◽  
Stress Strain ◽  
Stress Strain State ◽  
Load Carrying ◽  
Analysis Of Results ◽  
Experimental Researches ◽  
Satisfactory Quality

In the article on an example of the autotractor trailer, load-carrying capacity of 4 tons considers the technique for calculating the stress-strain state of the trailer frame. The comparative analysis of results of theoretical and experimental researches is given. It is established, that the deviations of the maximum values of stress at driving on road with tar coating of satisfactory quality is in limits of 4 %, on gravel roads with worn areas - 10 %, on the rotary strip with ridges in height of 8-12 cm and step of 90 cm - 11 %, on a deep ditch depth of 40-45 cm and width 100-150 cm - 9 %.

A study into the ability of SPD to restore the buckling strength and modes of rib stiffened panels with simulated stress corrosion cracks

2017 ◽  
Vol 8 (1) ◽  
pp. 63-78 ◽  
Author(s):  
Rhys Jones ◽  
Neil Matthews ◽  
Daren Peng ◽  
Nicholas Orchowski
Keyword(s):  
Experimental Study ◽  
Stress Corrosion ◽  
Carrying Capacity ◽  
Particle Deposition ◽  
Load Carrying Capacity ◽  
Load Path ◽  
Premature Failure ◽  
Content Type ◽  
Buckling Strength ◽  
Load Carrying

Purpose The purpose of this paper is to describe the results of a combined numerical and experimental study into the ability of supersonic particle deposition (SPD) to restore the load carrying capacity of rib stiffened wing planks with simulated stress corrosion cracking (SCC). Design/methodology/approach In this context the experimental results reveal that SCC can result in a dramatic reduction in the load carrying capacity of the structure and catastrophic failure via cracking that tears the length of the structure through buckling. A combined numerical and experimental study then reveals how this reduction, in the load carrying capacity can be overcome by using SPD. Findings This paper is the first to show that SPD can be used to restore the load carrying capacity of rib stiffened structures with SCC. It also shows that SPD repairs can be designed to have only a minimal effect on the local stiffness and hence on the load path. However, care should be taken to ensure that the design is such that premature failure of the SPD does not occur. Originality/value This is the first paper to show that a thin layer of SPD deposited 7,075 aluminium alloy powder on either side of the SCC-simulated stiffener has the potential to restore the load carrying capability of a rib stiffened structure. As such it represents an important first step into establishing the potential for SPD to restore the buckling strength of rib stiffened wing panels containing SCC.

scholarly journals The stress-strain state of gondola mounting bracket of a transport aircraft

2020 ◽  
pp. 117-123
Author(s):  
Sergii Trubachev ◽  
Olga Alexeychuk
Keyword(s):  
Finite Element ◽  
Power Plant ◽  
Strain State ◽  
3D Model ◽  
Stress Strain ◽  
Transport Aircraft ◽  
Finite Element Grid ◽  
Stress Strain State ◽  
Heavy Loads

The bracket is used to attach the gondola, which is an important part of the aircraft power plant. The gondola is constantly subjected to heavy loads when starting the engine, in flight, takeoff and landing. Therefore, the strength of the brackets of its attachment is very important. The geometric 3D model was built in SOLIDWORKS and imported for further calculations in ANSYS. A grid of tetraidal elements was created by the program. Thanks to the obtained FE (finite element) grid, we make the calculation of the stress strain state. Comments are provided on changes in the geometric and mass parameters of the bracket, based on the results of calculations.

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.

Study of the stress-strain state of three-layer conical shells with skins made of high-modulus composite materials

1986 ◽  
Vol 21 (4) ◽  
pp. 454-459
Author(s):  
V. U. Kotel'nikov ◽  
V. A. Morozov ◽  
S. V. Mokryi ◽  
G. I. Yurin
Keyword(s):  
Composite Materials ◽  
Strain State ◽  
High Modulus ◽  
Stress Strain ◽  
Conical Shells ◽  
Stress Strain State
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