AI Article Synopsis
- Non-Newtonian fluids can enhance the protection of flexible laminates by optimizing their interaction with the solid materials they shield.
- A scaling analysis reveals that shear-thinning fluids provide better impact protection than shear-thickening fluids by examining how they flow between rigid plates during impacts.
- Experimental measurements of velocity and pressure during impact tests support the findings, suggesting that this analysis can be applied to various fluid-solid interactions in different fields.
Article Abstract
Non-Newtonian fluids can be used for the protection of flexible laminates. Understanding the coupling between the flow of the protecting fluid and the deformation of the protected solids is necessary in order to optimize this functionality. We present a scaling analysis of the problem based on a single coupling variable, the effective width of a squeeze flow between flat rigid plates, and predict that impact protection for laminates is optimized by using shear-thinning, and not shear-thickening, fluids. The prediction is verified experimentally by measuring the velocity and pressure in impact experiments. Our scaling analysis should be generically applicable for non-Newtonian fluid-solid interactions in diverse applications.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10927517 | PMC |
| http://dx.doi.org/10.1073/pnas.2317832121 | DOI Listing |
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