What does this research mean for the field?

The coupling effect of fractures and acid corrosion significantly degrades the dynamic compressive strength of red sandstone, with acidic environments intensifying energy dissipation and exacerbating strength deterioration. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

To evaluate the dynamic mechanical behavior and energy absorption mechanisms of fractured red sandstone across different fracture angles and acidic corrosion levels.

September 5, 2026Discover Applied SciencesOpen Access

Dynamic mechanical properties and energy evolution of fractured red sandstone under acidic conditions

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Authors

CWCui WangUniversity of South China LFLiqun FuNanchang Institute of Technology SYShaosong Yang

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Implication

Laboratory experiment reveals dynamic strength loss and elevated energy dissipation in fractured red sandstone under acid exposure, highlighting risks to underground engineering stability.

Key Points

To evaluate the dynamic mechanical behavior and energy absorption mechanisms of fractured red sandstone across different fracture angles and acidic corrosion levels.
Tested red sandstone specimens prepared with five fracture angles (0°, 30°, 45°, 60°, and 90°) under natural and acidic environments with varying pH levels.
Conducted dynamic impact loading using a Split Hopkinson Pressure Bar (SHPB) system and analyzed stress wave propagation and energy dissipation characteristics.
Dynamic compressive strength increased as the fracture angle rose from 0° to 90°, while acid corrosion consistently decreased overall strength.
Increasing the fracture angle reduced the reflected energy ratio and elevated the transmitted energy ratio during impact loading.
Acid exposure substantially intensified internal energy dissipation, accelerating structural degradation of the rock specimens.

Cite This Study

Wang et al. (2026) studied this question.

synapsesocial.com/papers/6a9bd4726b95aff0620ec34b https://doi.org/10.1007/s42452-026-09415-1

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Implication

Laboratory experiment reveals dynamic strength loss and elevated energy dissipation in fractured red sandstone under acid exposure, highlighting risks to underground engineering stability.

Dynamic mechanical properties and energy evolution of fractured red sandstone under acidic conditions

Discussion

Member takes

Implication

Key Points

Cite This Study

Dynamic mechanical properties and energy evolution of fractured red sandstone under acidic conditions

Discussion

Member takes

Implication

Key Points

Cite This Study

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