کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6748462 1430174 2018 17 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Mechanical properties and failure mechanisms of sandwich panels with ultra-lightweight three-dimensional hierarchical lattice cores
ترجمه فارسی عنوان
خواص مکانیکی و مکانیسم شکست پانل های ساندویچ با هسته های سلول سلسله مراتبی سه بعدی بسیار سبک وزن
کلمات کلیدی
هسته مشبک، ساختار سلسله مراتبی، پانل ساندویچ، ویژگی های مکانیکی، نقشه مکانیزم خرابی
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
چکیده انگلیسی
Mechanical properties and failure mechanisms of sandwich panels with “corrugated-pyramidal” hierarchical lattice cores were investigated through analytical modeling and detailed numerical simulations. This included studying the behavior of hierarchical lattice core material under compression and shearing, as well as investigating the mechanical performance of sandwich panels subjected to in-plane compression and three-point bending. Failure maps were constructed for the hierarchical lattice cores, as well as sandwich panels with hierarchical lattice cores by deriving analytical closed-form expressions for strength for all possible failure modes under each loading. 3D printed samples were manufactured and tested under out-of-plane compression in order to provide limited experimental validation of the study. Our study provides insights into the role of structural hierarchy in tuning the mechanical behavior of sandwich structures, and new opportunities for designing ultra-lightweight lattice cores with optimal performance.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Solids and Structures - Volumes 132–133, February 2018, Pages 171-187
نویسندگان
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