{"title":"Vibration Characteristics of 3D Printed Rigid Photopolymer Metamaterials Infiltrated with Biodegradable Shear Thickening Fluid","authors":"F. Scalzo, E. Vaglio","doi":"10.1007/s11340-025-01201-1","DOIUrl":null,"url":null,"abstract":"<div><h3>Background</h3><p>Hybrid metamaterials, obtained by infiltrating biodegradable shear-thickening fluids (STFs) into a porous structure, hold great promise for applications requiring enhanced sustainability and vibration reduction capabilities. However, research into the mechanical behavior of such hybrid materials remains limited.</p><h3>Objective</h3><p>The study aims to explore the vibration characteristics of 3D-printed hybrid metamaterials, investigating the effect of topology variation and providing experimental evidence supporting the effectiveness of biodegradable STF filler for vibration damping enhancement.</p><h3>Methods</h3><p>The dynamic properties of beam-like specimens integrating different types of metamaterials were evaluated through experimental modal analysis (EMA). Two distinct unit cell topologies, YRS (Y re-entrant structure) and FBCCZ (face and body-centered cell with vertical struts along the z-axis), were tested to observe the effect of geometric variation on the material’s dynamic properties. Additionally, each specimen was analyzed with and without a biodegradable STF filler.</p><h3>Results</h3><p>YRS specimens generally achieved better infiltration than FBCCZ specimens, likely due to the easier fluid flow within the structure. Analysis of Variance confirmed that cell topology and STF infiltration had a major influence on the damping behavior of the specimens. The damping ratio of the YRS specimens was, on average, 20% higher than that of the FBCCZ specimens. After STF infiltration, the damping ratio increased by an average of 14% for the FBCCZ specimens and 9% for the YRS specimens.</p><h3>Conclusions</h3><p>Results highlighted the superior performance of the hybrid auxetic metamaterial infiltrated with the biodegradable non-Newtonian fluid, offering a sustainable solution for adaptive structural vibration control by utilizing the shear-rate sensitivity of the STF.</p></div>","PeriodicalId":552,"journal":{"name":"Experimental Mechanics","volume":"65 8","pages":"1185 - 1198"},"PeriodicalIF":2.4000,"publicationDate":"2025-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11340-025-01201-1.pdf","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Experimental Mechanics","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1007/s11340-025-01201-1","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MATERIALS SCIENCE, CHARACTERIZATION & TESTING","Score":null,"Total":0}
引用次数: 0
Abstract
Background
Hybrid metamaterials, obtained by infiltrating biodegradable shear-thickening fluids (STFs) into a porous structure, hold great promise for applications requiring enhanced sustainability and vibration reduction capabilities. However, research into the mechanical behavior of such hybrid materials remains limited.
Objective
The study aims to explore the vibration characteristics of 3D-printed hybrid metamaterials, investigating the effect of topology variation and providing experimental evidence supporting the effectiveness of biodegradable STF filler for vibration damping enhancement.
Methods
The dynamic properties of beam-like specimens integrating different types of metamaterials were evaluated through experimental modal analysis (EMA). Two distinct unit cell topologies, YRS (Y re-entrant structure) and FBCCZ (face and body-centered cell with vertical struts along the z-axis), were tested to observe the effect of geometric variation on the material’s dynamic properties. Additionally, each specimen was analyzed with and without a biodegradable STF filler.
Results
YRS specimens generally achieved better infiltration than FBCCZ specimens, likely due to the easier fluid flow within the structure. Analysis of Variance confirmed that cell topology and STF infiltration had a major influence on the damping behavior of the specimens. The damping ratio of the YRS specimens was, on average, 20% higher than that of the FBCCZ specimens. After STF infiltration, the damping ratio increased by an average of 14% for the FBCCZ specimens and 9% for the YRS specimens.
Conclusions
Results highlighted the superior performance of the hybrid auxetic metamaterial infiltrated with the biodegradable non-Newtonian fluid, offering a sustainable solution for adaptive structural vibration control by utilizing the shear-rate sensitivity of the STF.
期刊介绍：
Experimental Mechanics is the official journal of the Society for Experimental Mechanics that publishes papers in all areas of experimentation including its theoretical and computational analysis. The journal covers research in design and implementation of novel or improved experiments to characterize materials, structures and systems. Articles extending the frontiers of experimental mechanics at large and small scales are particularly welcome.
Coverage extends from research in solid and fluids mechanics to fields at the intersection of disciplines including physics, chemistry and biology. Development of new devices and technologies for metrology applications in a wide range of industrial sectors (e.g., manufacturing, high-performance materials, aerospace, information technology, medicine, energy and environmental technologies) is also covered.
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
