BEGIN:VCALENDAR VERSION:2.0 PRODID:Linklings LLC BEGIN:VTIMEZONE TZID:Asia/Tokyo X-LIC-LOCATION:Asia/Tokyo BEGIN:STANDARD TZOFFSETFROM:+0900 TZOFFSETTO:+0900 TZNAME:JST DTSTART:18871231T000000 END:STANDARD END:VTIMEZONE BEGIN:VEVENT DTSTAMP:20250110T023312Z LOCATION:Hall B5 (1)\, B Block\, Level 5 DTSTART;TZID=Asia/Tokyo:20241203T165300 DTEND;TZID=Asia/Tokyo:20241203T170500 UID:siggraphasia_SIGGRAPH Asia 2024_sess109_papers_192@linklings.com SUMMARY:Optimized shock-protecting microstructures DESCRIPTION:Technical Papers\n\nZizhou Huang, Daniele Panozzo, and Denis Z orin (New York University)\n\nMechanical shock is a common occurrence in v arious settings, there are two different scenarios for shock protection: c atastrophic protection (e.g. car collisions and falls) and routine protect ion (e.g. shoe soles and mattresses). The former protects against one-time events, the latter against periodic shocks and loads. Common shock absorb ers based on plasticity and fracturing materials are suitable for the form er, while our focus is on the latter, where elastic structures are useful. Improved elastic materials protecting against shock can be used in applic ations such as automotive suspension, furniture like sofas and mattresses, landing gear systems, etc. Materials offering optimal protection against shock have a highly non-linear elastic response: their reaction force need s to be as close as possible to constant with respect to deformation. \n\ nIn this paper, we use shape optimization and topology search to design 2D families of microstructures approximating the ideal behavior across a ran ge of deformations, leading to superior shock protection. We present an al gorithmic pipeline for the optimal design of such families combining diffe rentiable nonlinear homogenization with self-contact and an optimization a lgorithm. We validate the effectiveness of our advanced 2D designs by extr uding and fabricating them with 3D printing technologies and performing ma terial and drop testing.\n\nRegistration Category: Full Access, Full Acces s Supporter\n\nLanguage Format: English Language\n\nSession Chair: Haisen Zhao (Shandong University) URL:https://asia.siggraph.org/2024/program/?id=papers_192&sess=sess109 END:VEVENT END:VCALENDAR