[{"file_date_updated":"2023-12-04T08:04:14Z","quality_controlled":"1","article_type":"original","publisher":"Association for Computing Machinery","author":[{"first_name":"Liane","last_name":"Makatura","full_name":"Makatura, Liane"},{"last_name":"Wang","first_name":"Bohan","full_name":"Wang, Bohan"},{"full_name":"Chen, Yi-Lu","last_name":"Chen","first_name":"Yi-Lu","id":"0b467602-dbcd-11ea-9d1d-ed480aa46b70"},{"full_name":"Deng, Bolei","first_name":"Bolei","last_name":"Deng"},{"orcid":"0000-0001-6646-5546","full_name":"Wojtan, Christopher J","first_name":"Christopher J","last_name":"Wojtan","id":"3C61F1D2-F248-11E8-B48F-1D18A9856A87"},{"id":"49876194-F248-11E8-B48F-1D18A9856A87","first_name":"Bernd","last_name":"Bickel","orcid":"0000-0001-6511-9385","full_name":"Bickel, Bernd"},{"last_name":"Matusik","first_name":"Wojciech","full_name":"Matusik, Wojciech"}],"issue":"5","_id":"14628","title":"Procedural metamaterials: A unified procedural graph for metamaterial design","intvolume":"        42","publication_status":"published","article_processing_charge":"Yes (in subscription journal)","date_created":"2023-11-29T15:02:03Z","department":[{"_id":"GradSch"},{"_id":"ChWo"},{"_id":"BeBi"}],"ddc":["531","006"],"acknowledgement":"The authors thank Mina Konaković Luković and Michael Foshey for their early contributions to this project, David Palmer and Paul Zhang for their insightful discussions about minimal surfaces and the CSCM, Julian Panetta for providing the Elastic Textures code, and Hannes Hergeth for his feedback and support. We also thank our user study participants and anonymous reviewers.\r\nThis material is based upon work supported by the National Science Foundation\r\n(NSF) Graduate Research Fellowship under Grant No. 2141064; the MIT Morningside\r\nAcademy for Design Fellowship; the Defense Advanced Research Projects Agency\r\n(DARPA) Grant No. FA8750-20-C-0075; the ERC Consolidator Grant No. 101045083,\r\n“CoDiNA: Computational Discovery of Numerical Algorithms for Animation and Simulation of Natural Phenomena”; and the NewSat project, which is co-funded by the Operational Program for Competitiveness and Internationalisation (COMPETE2020), Portugal 2020, the European Regional Development Fund (ERDF), and the Portuguese Foundation for Science and Technology (FTC) under the MIT Portugal program.","volume":42,"date_updated":"2023-12-04T08:09:05Z","citation":{"chicago":"Makatura, Liane, Bohan Wang, Yi-Lu Chen, Bolei Deng, Chris Wojtan, Bernd Bickel, and Wojciech Matusik. “Procedural Metamaterials: A Unified Procedural Graph for Metamaterial Design.” <i>ACM Transactions on Graphics</i>. Association for Computing Machinery, 2023. <a href=\"https://doi.org/10.1145/3605389\">https://doi.org/10.1145/3605389</a>.","ieee":"L. Makatura <i>et al.</i>, “Procedural metamaterials: A unified procedural graph for metamaterial design,” <i>ACM Transactions on Graphics</i>, vol. 42, no. 5. Association for Computing Machinery, 2023.","apa":"Makatura, L., Wang, B., Chen, Y.-L., Deng, B., Wojtan, C., Bickel, B., &#38; Matusik, W. (2023). Procedural metamaterials: A unified procedural graph for metamaterial design. <i>ACM Transactions on Graphics</i>. Association for Computing Machinery. <a href=\"https://doi.org/10.1145/3605389\">https://doi.org/10.1145/3605389</a>","ama":"Makatura L, Wang B, Chen Y-L, et al. Procedural metamaterials: A unified procedural graph for metamaterial design. <i>ACM Transactions on Graphics</i>. 2023;42(5). doi:<a href=\"https://doi.org/10.1145/3605389\">10.1145/3605389</a>","ista":"Makatura L, Wang B, Chen Y-L, Deng B, Wojtan C, Bickel B, Matusik W. 2023. Procedural metamaterials: A unified procedural graph for metamaterial design. ACM Transactions on Graphics. 42(5), 168.","mla":"Makatura, Liane, et al. “Procedural Metamaterials: A Unified Procedural Graph for Metamaterial Design.” <i>ACM Transactions on Graphics</i>, vol. 42, no. 5, 168, Association for Computing Machinery, 2023, doi:<a href=\"https://doi.org/10.1145/3605389\">10.1145/3605389</a>.","short":"L. Makatura, B. Wang, Y.-L. Chen, B. Deng, C. Wojtan, B. Bickel, W. Matusik, ACM Transactions on Graphics 42 (2023)."},"year":"2023","abstract":[{"text":"We introduce a compact, intuitive procedural graph representation for cellular metamaterials, which are small-scale, tileable structures that can be architected to exhibit many useful material properties. Because the structures’ “architectures” vary widely—with elements such as beams, thin shells, and solid bulks—it is difficult to explore them using existing representations. Generic approaches like voxel grids are versatile, but it is cumbersome to represent and edit individual structures; architecture-specific approaches address these issues, but are incompatible with one another. By contrast, our procedural graph succinctly represents the construction process for any structure using a simple skeleton annotated with spatially varying thickness. To express the highly constrained triply periodic minimal surfaces (TPMS) in this manner, we present the first fully automated version of the conjugate surface construction method, which allows novices to create complex TPMS from intuitive input. We demonstrate our representation’s expressiveness, accuracy, and compactness by constructing a wide range of established structures and hundreds of novel structures with diverse architectures and material properties. We also conduct a user study to verify our representation’s ease-of-use and ability to expand engineers’ capacity for exploration.","lang":"eng"}],"doi":"10.1145/3605389","day":"01","language":[{"iso":"eng"}],"keyword":["Computer Graphics and Computer-Aided Design"],"publication":"ACM Transactions on Graphics","has_accepted_license":"1","month":"10","article_number":"168","oa_version":"Published Version","project":[{"grant_number":"101045083","name":"Computational Discovery of Numerical Algorithms for Animation and Simulation of Natural Phenomena","_id":"34bc2376-11ca-11ed-8bc3-9a3b3961a088"}],"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","status":"public","file":[{"access_level":"open_access","success":1,"relation":"main_file","creator":"yichen","file_id":"14630","checksum":"0192f597d7a2ceaf89baddfd6190d4c8","file_size":95467870,"date_created":"2023-11-29T15:16:01Z","content_type":"application/zip","file_name":"tog-22-0089-File004.zip","date_updated":"2023-11-29T15:16:01Z"},{"date_updated":"2023-11-29T15:16:01Z","file_name":"tog-22-0089-File005.zip","content_type":"application/zip","date_created":"2023-11-29T15:16:01Z","file_size":103731880,"checksum":"7fb024963be81933494f38de191e4710","file_id":"14631","creator":"yichen","success":1,"access_level":"open_access","relation":"main_file"},{"content_type":"application/pdf","file_name":"2023_ACMToG_Makatura.pdf","date_updated":"2023-12-04T08:04:14Z","file_size":57067476,"checksum":"b7d6829ce396e21cac9fae0ec7130a6b","date_created":"2023-12-04T08:04:14Z","creator":"dernst","file_id":"14638","relation":"main_file","success":1,"access_level":"open_access"}],"date_published":"2023-10-01T00:00:00Z","type":"journal_article","oa":1,"publication_identifier":{"issn":["0730-0301","1557-7368"]}},{"issue":"6","author":[{"last_name":"Alderighi","first_name":"Thomas","full_name":"Alderighi, Thomas"},{"first_name":"Luigi","last_name":"Malomo","full_name":"Malomo, Luigi"},{"first_name":"Thomas","last_name":"Auzinger","orcid":"0000-0002-1546-3265","full_name":"Auzinger, Thomas","id":"4718F954-F248-11E8-B48F-1D18A9856A87"},{"first_name":"Bernd","last_name":"Bickel","orcid":"0000-0001-6511-9385","full_name":"Bickel, Bernd","id":"49876194-F248-11E8-B48F-1D18A9856A87"},{"full_name":"Cignoni, Paulo","last_name":"Cignoni","first_name":"Paulo"},{"last_name":"Pietroni","first_name":"Nico","full_name":"Pietroni, Nico"}],"scopus_import":"1","_id":"11993","intvolume":"        41","title":"State of the art in computational mould design","department":[{"_id":"BeBi"}],"date_created":"2022-08-28T18:17:01Z","article_processing_charge":"No","publication_status":"published","file_date_updated":"2022-08-28T18:18:08Z","quality_controlled":"1","page":"435-452","article_type":"original","publisher":"Wiley","external_id":{"isi":["000842638900001"]},"isi":1,"year":"2022","citation":{"chicago":"Alderighi, Thomas, Luigi Malomo, Thomas Auzinger, Bernd Bickel, Paulo Cignoni, and Nico Pietroni. “State of the Art in Computational Mould Design.” <i>Computer Graphics Forum</i>. Wiley, 2022. <a href=\"https://doi.org/10.1111/cgf.14581\">https://doi.org/10.1111/cgf.14581</a>.","ieee":"T. Alderighi, L. Malomo, T. Auzinger, B. Bickel, P. Cignoni, and N. Pietroni, “State of the art in computational mould design,” <i>Computer Graphics Forum</i>, vol. 41, no. 6. Wiley, pp. 435–452, 2022.","apa":"Alderighi, T., Malomo, L., Auzinger, T., Bickel, B., Cignoni, P., &#38; Pietroni, N. (2022). State of the art in computational mould design. <i>Computer Graphics Forum</i>. Wiley. <a href=\"https://doi.org/10.1111/cgf.14581\">https://doi.org/10.1111/cgf.14581</a>","ama":"Alderighi T, Malomo L, Auzinger T, Bickel B, Cignoni P, Pietroni N. State of the art in computational mould design. <i>Computer Graphics Forum</i>. 2022;41(6):435-452. doi:<a href=\"https://doi.org/10.1111/cgf.14581\">10.1111/cgf.14581</a>","ista":"Alderighi T, Malomo L, Auzinger T, Bickel B, Cignoni P, Pietroni N. 2022. State of the art in computational mould design. Computer Graphics Forum. 41(6), 435–452.","short":"T. Alderighi, L. Malomo, T. Auzinger, B. Bickel, P. Cignoni, N. Pietroni, Computer Graphics Forum 41 (2022) 435–452.","mla":"Alderighi, Thomas, et al. “State of the Art in Computational Mould Design.” <i>Computer Graphics Forum</i>, vol. 41, no. 6, Wiley, 2022, pp. 435–52, doi:<a href=\"https://doi.org/10.1111/cgf.14581\">10.1111/cgf.14581</a>."},"date_updated":"2023-08-03T13:21:55Z","abstract":[{"lang":"eng","text":"Moulding refers to a set of manufacturing techniques in which a mould, usually a cavity or a solid frame, is used to shape a liquid or pliable material into an object of the desired shape. The popularity of moulding comes from its effectiveness, scalability and versatility in terms of employed materials. Its relevance as a fabrication process is demonstrated by the extensive literature covering different aspects related to mould design, from material flow simulation to the automation of mould geometry design. In this state-of-the-art report, we provide an extensive review of the automatic methods for the design of moulds, focusing on contributions from a geometric perspective. We classify existing mould design methods based on their computational approach and the nature of their target moulding process. We summarize the relationships between computational approaches and moulding techniques, highlighting their strengths and limitations. Finally, we discuss potential future research directions."}],"day":"01","doi":"10.1111/cgf.14581","ddc":["000"],"volume":41,"has_accepted_license":"1","publication":"Computer Graphics Forum","month":"09","oa_version":"Submitted Version","keyword":["Computer Graphics and Computer-Aided Design"],"language":[{"iso":"eng"}],"type":"journal_article","date_published":"2022-09-01T00:00:00Z","oa":1,"publication_identifier":{"eissn":["1467-8659"],"issn":["0167-7055"]},"status":"public","user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","file":[{"title":"pre-peer reviewed version","checksum":"c40cc8ceb7b7f0512172b883d712198e","file_size":32480850,"date_created":"2022-08-28T18:18:08Z","file_name":"star_molding_preprint.pdf","content_type":"application/pdf","date_updated":"2022-08-28T18:18:08Z","relation":"main_file","access_level":"open_access","description":"This is the pre-peer reviewed version of the following article: Alderighi, T., Malomo, L., Auzinger, T., Bickel, B., Cignoni, P. and Pietroni, N. (2022), State of the Art in Computational Mould Design. Computer Graphics Forum, which has been published in final form at https://doi.org/10.1111/cgf.14581. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.","creator":"bbickel","file_id":"11994"}]},{"oa":1,"supervisor":[{"id":"49876194-F248-11E8-B48F-1D18A9856A87","first_name":"Bernd","last_name":"Bickel","orcid":"0000-0001-6511-9385","full_name":"Bickel, Bernd"}],"publication_identifier":{"issn":["2663-337X"],"isbn":["978-3-99078-010-7"]},"type":"dissertation","date_published":"2020-09-21T00:00:00Z","status":"public","user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1","related_material":{"record":[{"status":"deleted","relation":"research_data","id":"7151"},{"id":"7262","relation":"part_of_dissertation","status":"public"},{"relation":"part_of_dissertation","id":"8562","status":"public"},{"relation":"part_of_dissertation","id":"1001","status":"public"},{"relation":"research_data","id":"8375","status":"public"}]},"file":[{"file_id":"8367","creator":"rguseino","success":1,"access_level":"open_access","relation":"main_file","date_updated":"2020-09-10T16:11:49Z","content_type":"application/pdf","file_name":"thesis_rguseinov.pdf","date_created":"2020-09-10T16:11:49Z","checksum":"f8da89553da36037296b0a80f14ebf50","file_size":70950442},{"file_size":76207597,"checksum":"e8fd944c960c20e0e27e6548af69121d","date_created":"2020-09-11T09:39:48Z","content_type":"application/x-zip-compressed","file_name":"thesis_source.zip","date_updated":"2020-09-16T15:11:01Z","access_level":"closed","relation":"source_file","creator":"rguseino","file_id":"8374"}],"month":"09","project":[{"call_identifier":"H2020","_id":"24F9549A-B435-11E9-9278-68D0E5697425","name":"MATERIALIZABLE: Intelligent fabrication-oriented Computational Design and Modeling","grant_number":"715767"}],"acknowledged_ssus":[{"_id":"M-Shop"},{"_id":"ScienComp"}],"oa_version":"Published Version","has_accepted_license":"1","keyword":["computer-aided design","shape modeling","self-morphing","mechanical engineering"],"language":[{"iso":"eng"}],"abstract":[{"text":"Fabrication of curved shells plays an important role in modern design, industry, and science. Among their remarkable properties are, for example, aesthetics of organic shapes, ability to evenly distribute loads, or efficient flow separation. They find applications across vast length scales ranging from sky-scraper architecture to microscopic devices. But, at\r\nthe same time, the design of curved shells and their manufacturing process pose a variety of challenges. In this thesis, they are addressed from several perspectives. In particular, this thesis presents approaches based on the transformation of initially flat sheets into the target curved surfaces. This involves problems of interactive design of shells with nontrivial mechanical constraints, inverse design of complex structural materials, and data-driven modeling of delicate and time-dependent physical properties. At the same time, two newly-developed self-morphing mechanisms targeting flat-to-curved transformation are presented.\r\nIn architecture, doubly curved surfaces can be realized as cold bent glass panelizations. Originally flat glass panels are bent into frames and remain stressed. This is a cost-efficient fabrication approach compared to hot bending, when glass panels are shaped plastically. However such constructions are prone to breaking during bending, and it is highly\r\nnontrivial to navigate the design space, keeping the panels fabricable and aesthetically pleasing at the same time. We introduce an interactive design system for cold bent glass façades, while previously even offline optimization for such scenarios has not been sufficiently developed. Our method is based on a deep learning approach providing quick\r\nand high precision estimation of glass panel shape and stress while handling the shape\r\nmultimodality.\r\nFabrication of smaller objects of scales below 1 m, can also greatly benefit from shaping originally flat sheets. In this respect, we designed new self-morphing shell mechanisms transforming from an initial flat state to a doubly curved state with high precision and detail. Our so-called CurveUps demonstrate the encodement of the geometric information\r\ninto the shell. Furthermore, we explored the frontiers of programmable materials and showed how temporal information can additionally be encoded into a flat shell. This allows prescribing deformation sequences for doubly curved surfaces and, thus, facilitates self-collision avoidance enabling complex shapes and functionalities otherwise impossible.\r\nBoth of these methods include inverse design tools keeping the user in the design loop.","lang":"eng"}],"day":"21","doi":"10.15479/AT:ISTA:8366","degree_awarded":"PhD","year":"2020","citation":{"short":"R. Guseinov, Computational Design of Curved Thin Shells: From Glass Façades to Programmable Matter, Institute of Science and Technology Austria, 2020.","mla":"Guseinov, Ruslan. <i>Computational Design of Curved Thin Shells: From Glass Façades to Programmable Matter</i>. Institute of Science and Technology Austria, 2020, doi:<a href=\"https://doi.org/10.15479/AT:ISTA:8366\">10.15479/AT:ISTA:8366</a>.","ista":"Guseinov R. 2020. Computational design of curved thin shells: From glass façades to programmable matter. Institute of Science and Technology Austria.","apa":"Guseinov, R. (2020). <i>Computational design of curved thin shells: From glass façades to programmable matter</i>. Institute of Science and Technology Austria. <a href=\"https://doi.org/10.15479/AT:ISTA:8366\">https://doi.org/10.15479/AT:ISTA:8366</a>","ama":"Guseinov R. Computational design of curved thin shells: From glass façades to programmable matter. 2020. doi:<a href=\"https://doi.org/10.15479/AT:ISTA:8366\">10.15479/AT:ISTA:8366</a>","ieee":"R. Guseinov, “Computational design of curved thin shells: From glass façades to programmable matter,” Institute of Science and Technology Austria, 2020.","chicago":"Guseinov, Ruslan. “Computational Design of Curved Thin Shells: From Glass Façades to Programmable Matter.” Institute of Science and Technology Austria, 2020. <a href=\"https://doi.org/10.15479/AT:ISTA:8366\">https://doi.org/10.15479/AT:ISTA:8366</a>."},"date_updated":"2024-02-21T12:44:29Z","ddc":["000"],"acknowledgement":"During the work on this thesis, I received substantial support from IST Austria’s scientific service units. A big thank you to Todor Asenov and other Miba Machine Shop team members for their help with fabrication of experimental prototypes. In addition, I would like to thank Scientific Computing team for the support with high performance computing.\r\nFinancial support was provided by the European Research Council (ERC) under grant agreement No 715767 - MATERIALIZABLE: Intelligent fabrication-oriented Computational Design and Modeling, which I gratefully acknowledge.","title":"Computational design of curved thin shells: From glass façades to programmable matter","alternative_title":["ISTA Thesis"],"department":[{"_id":"BeBi"}],"article_processing_charge":"No","date_created":"2020-09-10T16:19:55Z","publication_status":"published","author":[{"id":"3AB45EE2-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0001-9819-5077","full_name":"Guseinov, Ruslan","first_name":"Ruslan","last_name":"Guseinov"}],"_id":"8366","publisher":"Institute of Science and Technology Austria","file_date_updated":"2020-09-16T15:11:01Z","ec_funded":1,"page":"118"}]