کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
830122 1470351 2013 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Stretching behaviors of entangled materials with spiral wire structure
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی (عمومی)
پیش نمایش صفحه اول مقاله
Stretching behaviors of entangled materials with spiral wire structure
چکیده انگلیسی

The entangled materials with spiral wire structure have been investigated in terms of the stretching behavior, mechanical properties, and stress–strain hysteresis effect. The results indicate that these materials are much more flexible than that with non-woven wire structure. They exhibit 1.05 MPa yielding strength and 5.7 MPa Young’s modulus in average at the porosity of 60%, and 2.47 MPa yielding strength and 12.3 MPa Young’s modulus in average at the porosity of 45%. Under tensile loading the materials exhibit a unique stress–strain behavior that goes through a long strain period after yielding and follows a quick stress increase on the stress–strain curve due to the ‘unclosing’ and ‘straightening’ mechanism of the spiral wire structure. In addition, these materials exhibit obvious stress–strain hysteresis effect. Their energy dissipation values determined according to the stress–strain hysteresis loops are 28.6 mJ/cm3 at the porosity of 60% and 102.3 mJ/cm3 at the porosity of 45%, which are much larger than that of the polymer foam, implying their promising applications for the energy absorption.


► Entangled materials with spiral wire structure have been fabricated.
► A unique stress–strain behavior is performed.
► Their average tensile mechanical properties are reported.
► Their energy dissipation values are investigated.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials & Design - Volume 46, April 2013, Pages 61–65
نویسندگان
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