کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5485296 1523195 2017 17 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Experimental evidence of large complete bandgaps in zig-zag lattice structures
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم آکوستیک و فرا صوت
پیش نمایش صفحه اول مقاله
Experimental evidence of large complete bandgaps in zig-zag lattice structures
چکیده انگلیسی
In this paper, experimental evidence of large complete bandgaps in a kind of light-weighted zig-zag lattice structure (ZLS) is presented. Ultrasonic experiments are conducted on the stainless steel slab designed with ZLS to detect the complete bandgaps. Also, the numerical simulations of the experiments by the finite element method are carried out. For comparison, we conduct the same experiments and numerical simulations on the stainless steel slab with straight lattice structure (SLS). Good agreement is obtained between the experimental and numerical results. The complete bandgaps of ZLS are successfully tested and no complete bandgap is found in SLS. The band structures and vibration modes of both ZLS and SLS are calculated via the finite element method to understand the experimental data. The effects of the geometry parameters of ZLS on the complete bandgaps are discussed in detail.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ultrasonics - Volume 74, February 2017, Pages 99-105
نویسندگان
, , ,