FEM Analysis of Cylindrical Structural Elements under Local Shock Loading

Kruszka, Leopold; Vorobiov, Yu.S.; Ovcharova, Nataliia

doi:10.4028/www.scientific.net/amm.566.499

Cited by 4 publications

(2 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Experience analysis of features of the dynamic stress-strain state of structural elements under the influence of local loads shows that at a distance exceeding the size of the load application area 5 -10 times, the value of the stress drops sharply. This allows allocating a limited area of the structures element in which using a dense grid can refine a result without increasing the amount of computational calculations [4,5].…”

Section: Problem Statementmentioning

confidence: 99%

“…Previous studies have shown that a bilayer structure is more resistant to impact loads than a single-layer one with greater thickness of the same material [4,5]. In this case, the impact of the steel striker weighing m = 0.1 kg on a bilayer plate of titanium alloy (Ti6Al4V) which is used in the protective elements is being considered.…”

Section: Numerical Analysis Of the Impact On The Local Two-layer Platementioning

confidence: 99%

See 1 more Smart Citation

The Resistance of Structural Elements to Impact and Shock-Wave Load

Kruszka

Vorobiov

Ovcharova

2016

KEM

View full text Add to dashboard Cite

show abstract

Section: Problem Statementmentioning

confidence: 99%

Section: Numerical Analysis Of the Impact On The Local Two-layer Platementioning

confidence: 99%

The Resistance of Structural Elements to Impact and Shock-Wave Load

Kruszka

Vorobiov

Ovcharova

2016

KEM

View full text Add to dashboard Cite

show abstract

Sensitivity of high strain rate of structural elements in relation to dynamics properties of material

Kruszka

Vorobiov

Ovcharova

2015

EPJ Web of Conferences

Self Cite

View full text Add to dashboard Cite

Abstract. Protective structures such as process chambers, protective boxes, facing elements of vehicles, personal protection equipment, motors cases etc. widely used in modern technology has been tested in the following project. Under the influence of impact loads, the three-dimensional dynamic stress-strain state with finite dynamic displacements and deformations has arised. The deformations occur in the elastic-plastic stage. In the analysis of the high-rate deformations, the dynamic properties of the materials, which are determined based on experimental data should be taken into account. The dynamic stress state of structural elements depends essentially on the dynamic properties of the materials used. The problem is solved using the finite element method, which takes into account the specifics of the process. Boundary conditions in the element nodes must satisfy the equality movement as well as derivatives. The formed function allows to describe continuous and smooth stress changes. The numerical analysis of the dynamic stress-strain state of structural elements under impact loads, takes into account different dynamic properties of the materials. A series of numerical calculations allows to reveal the features of high-rate deformation elements of protective structures and makes recommendations to improve their dynamic strength under different loading conditions.

show abstract

Dynamic Resistance of Multi-Layered Protective Elements Under Impact Loads

2018

Self Cite

View full text Add to dashboard Cite

To ensure the dynamic strength of modern constructions, protective elements are used. Studies have shown that even with the use of double-layer elements from similar materials, multilayer elements have enhanced protective properties with a smaller overall thickness compared to single-layer elements. Even greater effect is achieved when using layers of different materials. These features are widely used in the creation of linings to strengthen the bodies of gas turbine engines when exposed to fragments of blades and foreign objects. Numerical studies of the stress-strain state of three-layer element from two thin layers of a titanium alloy and an average ceramic layer under the influence of projectile with different velocities are carried out. The top layer of the titanium alloy perceives the main local load and plastic deformations occur up to the formation of the crater. In the average ceramic layer, the extensive deformations develop, during which the basic energy of impact is absorbed. The third layer limits the velocity of deformation and increases the protective properties of the element. Thus, it is shown that the multilayer elements can have improved protective properties with a general reduction of the weight of structure.

show abstract

FEM Analysis of Cylindrical Structural Elements under Local Shock Loading

Cited by 4 publications

References 1 publication

The Resistance of Structural Elements to Impact and Shock-Wave Load

The Resistance of Structural Elements to Impact and Shock-Wave Load

Sensitivity of high strain rate of structural elements in relation to dynamics properties of material

Dynamic Resistance of Multi-Layered Protective Elements Under Impact Loads

Contact Info

Product

Resources

About