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Energy Characteristics of Progressive Damage in Dolomite Under Dry-Wet Cycle and Cyclic Loading and Unloading Conditions
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Feng ZHANG1, Yunmin WANG2, 3, Xiaoshuang LI1, 4, 5, Jun LU1, Guoqing HOU1
Mining and Metallurgical Engineering | 2025, 45(4) : 1 - 7
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Mining and Metallurgical Engineering | 2025, 45(4): 1-7
• MINING •
Energy Characteristics of Progressive Damage in Dolomite Under Dry-Wet Cycle and Cyclic Loading and Unloading Conditions
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Feng ZHANG1, Yunmin WANG2, 3, Xiaoshuang LI1, 4, 5, Jun LU1, Guoqing HOU1
Affiliations
  • 1.Shaoxing University, Shaoxing 312000, Zhejiang, China
  • 2.State Key Laboratory of Safety and Health for Metal Mine, Maanshan 243000, Anhui, China
  • 3.Sinosteel Maanshan Institute of Mining Research Co., Ltd., Maanshan 243000, Anhui, China
  • 4.Changzhou University, Changzhou 213164, Jiangsu, China
  • 5.Qilu Institute of Technology, Jinan 250200, Shandong, China
Published: 2025-08-01 doi: 10.3969/j.issn.0253-6099.2025.04.001
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The mechanical properties and energy evolution law of dolomite under a combined action of dry-wet cycle and cyclic loading and unloading were explored. The results show that the structural damage caused by dry-wet cycles leads to the transformation of dolomite from brittle fracture to ductile fracture, which is manifested by an increase in the area of hysteresis loops and a decrease in peak strength. At the early stage of cyclic loading and unloading, a strengthening effect is observed, and then the dolomite develops into the strain-softening and damage stages. An energy analysis indicates that the total input energy is mainly stored in the form of elastic strain energy, and the proportion of dissipated energy increases slowly with the accumulation of damage. Additionally, based on the variation of the damage variable defined by dissipated energy, the damage evolution tends to be stable after a progressive and accelerated process.

rock mechanics  /  dolomite  /  dry-wet cycle  /  cyclic loading and unloading  /  energy evolution law  /  energy dissipation ratio  /  damage variable
Feng ZHANG, Yunmin WANG, Xiaoshuang LI, Jun LU, Guoqing HOU. Energy Characteristics of Progressive Damage in Dolomite Under Dry-Wet Cycle and Cyclic Loading and Unloading Conditions[J]. Mining and Metallurgical Engineering, 2025 , 45 (4) : 1 -7 . DOI: 10.3969/j.issn.0253-6099.2025.04.001
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doi: 10.3969/j.issn.0253-6099.2025.04.001
  • Receive Date：2025-02-13
  • Online Date：2026-03-05
  • Published：2025-08-01
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  • Received：2025-02-13
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Affiliations
    1.Shaoxing University, Shaoxing 312000, Zhejiang, China
    2.State Key Laboratory of Safety and Health for Metal Mine, Maanshan 243000, Anhui, China
    3.Sinosteel Maanshan Institute of Mining Research Co., Ltd., Maanshan 243000, Anhui, China
    4.Changzhou University, Changzhou 213164, Jiangsu, China
    5.Qilu Institute of Technology, Jinan 250200, Shandong, China
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https://castjournals.cast.org.cn/joweb/kygczz/EN/10.3969/j.issn.0253-6099.2025.04.001
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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