کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5207397 | 1382349 | 2009 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Multiaxial ratcheting behavior of PTFE at room temperature
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Multiaxial ratcheting behavior of PTFE at room temperature Multiaxial ratcheting behavior of PTFE at room temperature](/preview/png/5207397.png)
چکیده انگلیسی
A series of multiaxial ratcheting experiments have been performed on polyteterafluoroethylene (PTFE) solid cylindrical specimens. All the tests were conducted under cyclic shear strain with a constant axial stress at room temperature. The effects of axial stress, shear strain range, shear strain rate and their histories on the ratcheting behavior of PTFE were studied. It is shown that the ratcheting strain depends on the constant axial stress, cyclic shear strain range and shear strain rate. The ratcheting strain increases more rapidly as the constant axial stress or shear strain range become larger, or the shear strain rate is reduced. Furthermore, the loading histories also play an important role in the progress of ratcheting. The prior cycling with higher axial stress, larger strain range or lower strain rate greatly restrains ratcheting strain of subsequent cycling at lower strains. Such phenomenon is due to the enhancement of the material deformation resistance caused by the prior loadings.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Polymer Testing - Volume 28, Issue 3, May 2009, Pages 288-295
Journal: Polymer Testing - Volume 28, Issue 3, May 2009, Pages 288-295
نویسندگان
Zhe Zhang, Xu Chen,