Influence of Chemical Corrosion on Dynamic Fracturing Mechanical Behavior of Marbles
To investigate the influences of the chemical corrosion on the dynamic fracture mechanical properties and failure characteristics of marble, the dynamic fracture test for the notched semicircular bend (NSCB) marble specimens with different degrees of corrosion damage was conducted using a split Hopk...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2022-01-01
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| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2022/8182504 |
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| _version_ | 1832554778920484864 |
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| author | Chunmei Zheng Jiayan Zheng Xiaojuan Peng Lei Zhou |
| author_facet | Chunmei Zheng Jiayan Zheng Xiaojuan Peng Lei Zhou |
| author_sort | Chunmei Zheng |
| collection | DOAJ |
| description | To investigate the influences of the chemical corrosion on the dynamic fracture mechanical properties and failure characteristics of marble, the dynamic fracture test for the notched semicircular bend (NSCB) marble specimens with different degrees of corrosion damage was conducted using a split Hopkinson pressure bar. The results show that both the porosity and corrosion damage variable Dc characterized by porosity increase as corrosion time T increases. The dynamic fracture toughness decreases linearly from 5.22 to 2.15 MPa m1/2 as Dc increases from 0 to 4.42%. This is because the corrosion damage done to interior structure leads to a reduction of cohesion and internal friction angle inside the specimen. In the Dc range of 0–4.42%, the fractal dimension of the main crack propagation path increases from 1.47 to 1.59, by an increase rate of 8.16%. Both the joint roughness coefficient and the actual area of the fracture surface increase as Dc increases. Due to the degradation of the connected force between the rock particles inside the specimen, there is an obvious decrease in the fracture energy per unit fracture surface from 0.94 to 0.38 J cm−2, with a decrease rate of 59.39%. With T increases, the contents of CaO, MgO, and Al2O3 in specimen increase, indicating that the degree of corrosion damage increases. |
| format | Article |
| id | doaj-art-4c64c4ee76354f478ea95518d3700a71 |
| institution | Kabale University |
| issn | 1687-8094 |
| language | English |
| publishDate | 2022-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-4c64c4ee76354f478ea95518d3700a712025-02-03T05:50:31ZengWileyAdvances in Civil Engineering1687-80942022-01-01202210.1155/2022/8182504Influence of Chemical Corrosion on Dynamic Fracturing Mechanical Behavior of MarblesChunmei Zheng0Jiayan Zheng1Xiaojuan Peng2Lei Zhou3School of Civil EngineeringSchool of Civil EngineeringSchool of Civil EngineeringSchool of Civil EngineeringTo investigate the influences of the chemical corrosion on the dynamic fracture mechanical properties and failure characteristics of marble, the dynamic fracture test for the notched semicircular bend (NSCB) marble specimens with different degrees of corrosion damage was conducted using a split Hopkinson pressure bar. The results show that both the porosity and corrosion damage variable Dc characterized by porosity increase as corrosion time T increases. The dynamic fracture toughness decreases linearly from 5.22 to 2.15 MPa m1/2 as Dc increases from 0 to 4.42%. This is because the corrosion damage done to interior structure leads to a reduction of cohesion and internal friction angle inside the specimen. In the Dc range of 0–4.42%, the fractal dimension of the main crack propagation path increases from 1.47 to 1.59, by an increase rate of 8.16%. Both the joint roughness coefficient and the actual area of the fracture surface increase as Dc increases. Due to the degradation of the connected force between the rock particles inside the specimen, there is an obvious decrease in the fracture energy per unit fracture surface from 0.94 to 0.38 J cm−2, with a decrease rate of 59.39%. With T increases, the contents of CaO, MgO, and Al2O3 in specimen increase, indicating that the degree of corrosion damage increases.http://dx.doi.org/10.1155/2022/8182504 |
| spellingShingle | Chunmei Zheng Jiayan Zheng Xiaojuan Peng Lei Zhou Influence of Chemical Corrosion on Dynamic Fracturing Mechanical Behavior of Marbles Advances in Civil Engineering |
| title | Influence of Chemical Corrosion on Dynamic Fracturing Mechanical Behavior of Marbles |
| title_full | Influence of Chemical Corrosion on Dynamic Fracturing Mechanical Behavior of Marbles |
| title_fullStr | Influence of Chemical Corrosion on Dynamic Fracturing Mechanical Behavior of Marbles |
| title_full_unstemmed | Influence of Chemical Corrosion on Dynamic Fracturing Mechanical Behavior of Marbles |
| title_short | Influence of Chemical Corrosion on Dynamic Fracturing Mechanical Behavior of Marbles |
| title_sort | influence of chemical corrosion on dynamic fracturing mechanical behavior of marbles |
| url | http://dx.doi.org/10.1155/2022/8182504 |
| work_keys_str_mv | AT chunmeizheng influenceofchemicalcorrosionondynamicfracturingmechanicalbehaviorofmarbles AT jiayanzheng influenceofchemicalcorrosionondynamicfracturingmechanicalbehaviorofmarbles AT xiaojuanpeng influenceofchemicalcorrosionondynamicfracturingmechanicalbehaviorofmarbles AT leizhou influenceofchemicalcorrosionondynamicfracturingmechanicalbehaviorofmarbles |