کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
777001 1463501 2012 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Single macropillars as model systems for tilt angle dependent adhesion measurements
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی مکانیک
پیش نمایش صفحه اول مقاله
Single macropillars as model systems for tilt angle dependent adhesion measurements
چکیده انگلیسی

Adhesion tests were performed on single macroscopic pillars as model systems for artificial gecko surfaces. Polydimethylsiloxane macropillars with 400 μm diameter and aspect ratios ranging from 1 to 5 were fabricated. The tip geometries were modified to achieve spherical, flat and mushroom shaped tips. Unlike spherical tips, flat tip pillars exhibited a strong angle dependency of the pull-off force. For mushroom shaped tips the pull-off force was tilt angle dependent only for low preload, where no complete tip contact was formed. No clear influence of pillar aspect ratio on adhesion could be identified. Implications of the results for the adhesion performance of fibrillar arrays are addressed.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Adhesion and Adhesives - Volume 36, July 2012, Pages 32–38
نویسندگان
, ,