15.1.2024 Enhancing operability of the fuel system units in the hot climate conditions

Stress relaxation and the accumulation of relative residual deformation of rubbers, caused by the kinetic rearrangement of chemical bonds, are extremely sensitive to the [...]

Read more 15.1.2024 Enhancing operability of the fuel system units in the hot climate conditions

3.1.2020 Analysis of the unsteady stress-strain behavior of the launch vehicle hold-down bay at liftoff

Then the unsteady stress-strain behavior of the hold-down bay is calculated, taking into consideration the plastoelastic deformations. Key words: stress-strain behavior , [...]

Read more 3.1.2020 Analysis of the unsteady stress-strain behavior of the launch vehicle hold-down bay at liftoff

9.1.2020 Experimental investigation of a liner-free propellant tank made from polymer composite materials

The tests of pilot propellant tank showed that the calculated values of deformations and displacements differ from the experimental values by no more than 10 %. The empirical [...]

Read more 9.1.2020 Experimental investigation of a liner-free propellant tank made from polymer composite materials

5.1.2020 Strength and stability of inhomogeneous structures of space technology, consid-ering plasticity and creep

Taking into consideration plasticity and creeping of material, to determine stress and strain state, the approach is effective where the calculation is divided into phases; in each [...]

Read more 5.1.2020 Strength and stability of inhomogeneous structures of space technology, consid-ering plasticity and creep

7.2.2018 Theoretical Models of Sound Speed Increase Effects in Gas Duct with Corrugated Wall

It is indicated that in the investigated system, two mutually influencing wave types are present – longitudinal, which mainly transfer gas pressure pulses along the channel and [...]

Read more 7.2.2018 Theoretical Models of Sound Speed Increase Effects in Gas Duct with Corrugated Wall

5.1.2019 Methodology of Normative Principles of Justification of Launch Vehicle Launching Facility Structures Lifetime

Service limit of launch site is suggested to be the critical time or the number of cycles (launches) over this period, after which the specified limiting states are achieved in the [...]

Read more 5.1.2019 Methodology of Normative Principles of Justification of Launch Vehicle Launching Facility Structures Lifetime

4.1.2019 Mathematic Modeling and Investigation into Stress-Strain State of Space Rocket Bays

A refined higher-order shear deformation theory for bending, vibration and buckling analysis of functionally graded sandwich plates / Steel and Composite Structures.

Read more 4.1.2019 Mathematic Modeling and Investigation into Stress-Strain State of Space Rocket Bays

14.1.2019 Technique of Determination of SRM Operational Life Taking into Account Materials and Elements Strength Margins

At the same time, service life definition is based on the results of stress and deformation analyses and their comparison with strength properties of the applied material [...]

Read more 14.1.2019 Technique of Determination of SRM Operational Life Taking into Account Materials and Elements Strength Margins

18.1.2016 Method of Design Evaluation of SRM Lifetime and Ensuring its Long-Term Operation

The techniques of engineering evaluation of operability margin of newly developed SRM are considered based on the methods of taking into account the breaking stresses and [...]

Read more 18.1.2016 Method of Design Evaluation of SRM Lifetime and Ensuring its Long-Term Operation

13.2.2019 Study of the stress and strain state of the multilayer bellows

Results of the simulated change in the stress and strain state of the bellows per one cycle of the variable reloading were taken to find the amplitude of the plastic [...]

Read more 13.2.2019 Study of the stress and strain state of the multilayer bellows