کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
774704 1463204 2014 19 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Pre-kinking analysis of a constant moving crack in a magnetoelectroelastic strip under in-plane loading
ترجمه فارسی عنوان
تجزیه و تحلیل پیش پا افتاده یک ترک ثابت متحرک در یک نوار مغناطیسی الکترواستاتیکی تحت بارگذاری درون هواپیما
کلمات کلیدی
کرک ثابت متحرک، نوار مغناطیسی الکل، کج کیک
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی مکانیک
چکیده انگلیسی


• Constant moving crack in a magnetoelectroelastic strip is considered.
• Asymptotic fields near the crack tip are obtained in an explicit form.
• The geometric size of the strip affects the singular crack tip fields.
• The crack kinking phenomenon is investigated.

A constant moving crack in a magnetoelectroelastic strip under in-plane mechanical, electric and magnetic loading is considered for impermeable and permeable crack surface boundary conditions, respectively. Fourier transform is applied to reduce the mixed boundary value problem of the crack to dual integral equations, which are further transformed into Fredholm integral equations of the second kind. Steady state asymptotic fields near the crack tip are obtained and the corresponding field intensity factors are defined. The exact solution for a cracked infinite magnetoelectroelastic material can be recovered if the width of the strip tends to infinity. The crack speed and the geometric size of the strip affect the singular field distribution around the crack tip and the influences of electric and magnetic loading on the crack tip fields are discussed. The crack kinking phenomenon is investigated by applying the maximum hoop stress intensity factor criterion.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: European Journal of Mechanics - A/Solids - Volume 43, January–February 2014, Pages 25–43
نویسندگان
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