کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
775221 1463765 2014 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Torsional fatigue with axial constant stress for Sn–3Ag–0.5Cu lead-free solder
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی مکانیک
پیش نمایش صفحه اول مقاله
Torsional fatigue with axial constant stress for Sn–3Ag–0.5Cu lead-free solder
چکیده انگلیسی

A series of multiaxial ratcheting–fatigue interaction tests have been carried out on Sn–3Ag–0.5Cu lead-free solder specimens. All tests were conducted under cyclic shear strain with the constant axial stress at the room temperature with the shear strain rate of 5 × 10−3 s−1. It was found that the ratcheting strain increased with increasing axial stress and shear strain amplitude while the fatigue life decreased at the same time. The ratcheting strain rate was linear with axial stress in double logarithmic coordinate. The Ohno–Wang II constitutive model was employed to simulate the stress–strain responses. Several fatigue life prediction models were applied to predict the multiaxial ratcheting–fatigue life of the Sn–3Ag–0.5Cu lead-free solder. The Gao–Chen model which adopted the maximum shear strain and the ratcheting strain rate as the damage parameter predicted the multiaxial ratcheting fatigue life well.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Fatigue - Volume 67, October 2014, Pages 203–211
نویسندگان
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