کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1707071 1012495 2008 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Numerical model for vibration damping resulting from the first-order phase transformations
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مکانیک محاسباتی
پیش نمایش صفحه اول مقاله
Numerical model for vibration damping resulting from the first-order phase transformations
چکیده انگلیسی

A numerical model is constructed for modelling macroscale damping effects induced by the first-order martensite phase transformations in a shape memory alloy rod. The model is constructed on the basis of the modified Landau–Ginzburg theory that couples nonlinear mechanical and thermal fields. The free energy function for the model is constructed as a double well function at low temperature, such that the external energy can be absorbed during the phase transformation and converted into thermal form. The Chebyshev spectral methods are employed together with backward differentiation for the numerical analysis of the problem. Computational experiments performed for different vibration energies demonstrate the importance of taking into account damping effects induced by phase transformations.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Mathematical Modelling - Volume 31, Issue 9, September 2007, Pages 2008–2018
نویسندگان
, ,