Print Email Facebook Twitter Size Effect in the Compression of 3D Polymerized Micro-Structures Title Size Effect in the Compression of 3D Polymerized Micro-Structures Author Li, Jiayu (Dalian University of Technology) Accardo, A. (TU Delft Micro and Nano Engineering) Liu, Shutian (Dalian University of Technology) Date 2024 Abstract Micro/nanoscale additive manufacturing provides a powerful tool for advanced materials and structures with complex and precise features. For instance, the feature resolution of two-photon polymerization (2PP) can reach 200 nm. At this scale, materials properties can change, and the influence of the size effect cannot be ignored. Therefore, it is necessary to assess changes in the material mechanical properties considering size effects. In this work, several micrometric polymeric specimens are printed via 2PP, and their mechanical properties are assessed using compression tests. Detailed printing and testing procedures and the effects of parameter settings are provided. The experimental results show that the changes in the microstructures size have a direct effect on Young s modulus. In particular, a large surface-volume ratio results in a higher Young s modulus. In other words, the smaller the structure size, the higher the stiffness. The reported findings play a significant role in the development of fabrication strategies for polymeric microstructures where high stiffness accuracy is fundamental. Subject mechanical properties of materialsmicro/nanoscale additive manufacturingSize effecttwo-photon polymerization resinYoung s modulus To reference this document use: http://resolver.tudelft.nl/uuid:c408e496-937f-44b2-a76f-a6cc4d905986 DOI https://doi.org/10.1115/1.4063028 Embargo date 2024-02-25 ISSN 0021-8936 Source Journal of Applied Mechanics, 91 (1) Bibliographical note Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public. Part of collection Institutional Repository Document type journal article Rights © 2024 Jiayu Li, A. Accardo, Shutian Liu Files PDF jam_91_1_011002.pdf 631.72 KB Close viewer /islandora/object/uuid:c408e496-937f-44b2-a76f-a6cc4d905986/datastream/OBJ/view