Resistance of Heterogeneous Metal Compositions to Fracture under Dynamic and Cyclic Loads
This paper presents the results of experimental data analysis, which indicate an increased resistance of heterogeneous multilayer clad composites to dynamic loading destruction compared with homogeneous materials. The reason for this is the crack retardation caused by lamination at the boundary of t...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-11-01
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| Series: | Metals |
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| Online Access: | https://www.mdpi.com/2075-4701/13/11/1899 |
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| author | Leonid K. Leshchinskiy Vitaliy P. Ivanov Elena V. Lavrova Dmitry P. Il’yaschenko |
| author_facet | Leonid K. Leshchinskiy Vitaliy P. Ivanov Elena V. Lavrova Dmitry P. Il’yaschenko |
| author_sort | Leonid K. Leshchinskiy |
| collection | DOAJ |
| description | This paper presents the results of experimental data analysis, which indicate an increased resistance of heterogeneous multilayer clad composites to dynamic loading destruction compared with homogeneous materials. The reason for this is the crack retardation caused by lamination at the boundary of the layers. The destruction of heterogeneous compact composite samples by cyclic off-center stretching also occurs with crack retardation, with the fractogram clearly demonstrating the transverse tightening of the sample section. We argue that crack nucleation plays a decisive role in the process of dynamic destruction of heterogeneous composites obtained by both multilayer cladding and explosion welding. This study presents generalized calculated data confirming the influence of the sign and magnitude of residual stresses (the appearance of a stress discontinuity) on the conditions of fatigue surface crack nucleation and propagation. Unlike homogeneous materials obtained by casting, forging (rolling), or cladding, which are characterized by a linear dependence of the crack propagation velocity on the dynamic stress intensity coefficient, for multilayer composites consisting of strong and viscous layers, a sharp crack deceleration is observed. This is due to the transition of the crack boundary between the strong and viscous layers. This paper presents studies of the corresponding properties of adjacent layers on the integral characteristics of the deposited composite. |
| first_indexed | 2024-03-09T16:36:27Z |
| format | Article |
| id | doaj.art-a6e4ba30925e489887b527a89a6b5c3b |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-09T16:36:27Z |
| publishDate | 2023-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj.art-a6e4ba30925e489887b527a89a6b5c3b2023-11-24T14:56:01ZengMDPI AGMetals2075-47012023-11-011311189910.3390/met13111899Resistance of Heterogeneous Metal Compositions to Fracture under Dynamic and Cyclic LoadsLeonid K. Leshchinskiy0Vitaliy P. Ivanov1Elena V. Lavrova2Dmitry P. Il’yaschenko3Institute of Modern Technologies, Pryazovskyi State Technical University, Universitetskaya 7, 287555 Mariupol, RussiaInstitute of Modern Technologies, Pryazovskyi State Technical University, Universitetskaya 7, 287555 Mariupol, RussiaInstitute of Modern Technologies, Pryazovskyi State Technical University, Universitetskaya 7, 287555 Mariupol, RussiaYurga Technological Institute, National Research Tomsk Polytechnic University, 30 Lenina Prospekt, 634050 Tomsk, RussiaThis paper presents the results of experimental data analysis, which indicate an increased resistance of heterogeneous multilayer clad composites to dynamic loading destruction compared with homogeneous materials. The reason for this is the crack retardation caused by lamination at the boundary of the layers. The destruction of heterogeneous compact composite samples by cyclic off-center stretching also occurs with crack retardation, with the fractogram clearly demonstrating the transverse tightening of the sample section. We argue that crack nucleation plays a decisive role in the process of dynamic destruction of heterogeneous composites obtained by both multilayer cladding and explosion welding. This study presents generalized calculated data confirming the influence of the sign and magnitude of residual stresses (the appearance of a stress discontinuity) on the conditions of fatigue surface crack nucleation and propagation. Unlike homogeneous materials obtained by casting, forging (rolling), or cladding, which are characterized by a linear dependence of the crack propagation velocity on the dynamic stress intensity coefficient, for multilayer composites consisting of strong and viscous layers, a sharp crack deceleration is observed. This is due to the transition of the crack boundary between the strong and viscous layers. This paper presents studies of the corresponding properties of adjacent layers on the integral characteristics of the deposited composite.https://www.mdpi.com/2075-4701/13/11/1899dynamic and cyclic loadingcladdingmultilayer compositeheterogeneityfatiguecrack propagation rate |
| spellingShingle | Leonid K. Leshchinskiy Vitaliy P. Ivanov Elena V. Lavrova Dmitry P. Il’yaschenko Resistance of Heterogeneous Metal Compositions to Fracture under Dynamic and Cyclic Loads Metals dynamic and cyclic loading cladding multilayer composite heterogeneity fatigue crack propagation rate |
| title | Resistance of Heterogeneous Metal Compositions to Fracture under Dynamic and Cyclic Loads |
| title_full | Resistance of Heterogeneous Metal Compositions to Fracture under Dynamic and Cyclic Loads |
| title_fullStr | Resistance of Heterogeneous Metal Compositions to Fracture under Dynamic and Cyclic Loads |
| title_full_unstemmed | Resistance of Heterogeneous Metal Compositions to Fracture under Dynamic and Cyclic Loads |
| title_short | Resistance of Heterogeneous Metal Compositions to Fracture under Dynamic and Cyclic Loads |
| title_sort | resistance of heterogeneous metal compositions to fracture under dynamic and cyclic loads |
| topic | dynamic and cyclic loading cladding multilayer composite heterogeneity fatigue crack propagation rate |
| url | https://www.mdpi.com/2075-4701/13/11/1899 |
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