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Effect of local corrosion on mechanical properties of the porous structure
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Junling ZOU1, Qingtian DENG1, 2, Xinbo LI1, 2, Xueli SONG1, 2
Journal of Mechanical Strength | 2025, 47(3) : 1 - 10
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Journal of Mechanical Strength | 2025, 47(3): 1-10
• Experimental Research·Testing Technology •
Effect of local corrosion on mechanical properties of the porous structure
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Junling ZOU1, Qingtian DENG1, 2, Xinbo LI1, 2, Xueli SONG1, 2
Affiliations
  • 1.School of Science, Chang’an University, Xi’an 710064, China
  • 2.Xi’an Key Laboratory for Digital Detection Technology of Structural Damage, Xi’an 710064, China
Published: 2025-03-15 doi: 10.16579/j.issn.1001.9669.2025.03.001
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Dichloromethane solution was introduced as the corrosion medium by the liquid drop method.Based on the regular quadrilateral, regular hexagon and concave structures with different porosities，the effects of different corrosion cycles and areas on the porous structural mechanical properties of polylactic acid (PLA) were analyzed by comparing with the finite element simulation results.The results show that concave porous structure plate is the least affected by the corrosion cycle,while the other two structures are affected by it depending on the size of the porosity.The hexagonal structure with a porosity of 72% has the weakest corrosion defect bearing capacity, while the concave structure has the strongest bearing capacity.The regular quadrilateral structure with a porosity of 54% is most affected by the single cell corrosion.The corrosion bearing capacity of the expanded area of a single cell in a regular hexagonal structure is weaker than that of a single cell, while the corrosion bearing capacity of the expanded area of a single cell in a regular quadrilateral structure is stronger than that of a single cell.

Corrosion  /  Dichloromethane solution  /  Polylactic acid porous structure  /  Mechanical property
Junling ZOU, Qingtian DENG, Xinbo LI, Xueli SONG. Effect of local corrosion on mechanical properties of the porous structure[J]. Journal of Mechanical Strength, 2025 , 47 (3) : 1 -10 . DOI: 10.16579/j.issn.1001.9669.2025.03.001
Funding
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  • National Natural Science Foundation of China-China Academy of Engineering Physics NSAF Joint Fund(U1930204)
Appendix
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Year 2025 volume 47 Issue 3
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Article Info
doi: 10.16579/j.issn.1001.9669.2025.03.001
  • Receive Date：2023-06-28
  • Online Date：2026-03-17
  • Published：2025-03-15
Article Data
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History
  • Received：2023-06-28
  • Revised：2023-07-24
Funding
National Natural Science Foundation of China-China Academy of Engineering Physics NSAF Joint Fund(U1930204)
Affiliations
    1.School of Science, Chang’an University, Xi’an 710064, China
    2.Xi’an Key Laboratory for Digital Detection Technology of Structural Damage, Xi’an 710064, China

Corresponding:

DENG Qingtian, E-mail：
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Citations
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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