کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5452704 1513784 2017 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Fracture toughness of highly deformable polymeric materials
ترجمه فارسی عنوان
چقرمگی شکستگی مواد پلیمری بسیار تغییر شکل پذیر
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد شیمی مواد
چکیده انگلیسی
A fundamental requirement for safety design of structural components is flaw tolerance. In this field, the soft materials have a unique ability to bear external loads despite the presence of defects, due to their pronounced deformability. Unlike traditional materials, which have an enthalpic elasticity, the mechanical response of a polymer-based material is governed by the state of internal entropy of a molecular network which has a great ability to rearrange the material structure and shape so to minimize the local detrimental effect of flaws. For a correct estimation of the fracture toughness of these materials, a proper knowledge of this entropic effect is needed. In the present research, the mechanical behaviour up to failure of silicone-based cracked plates is examined by taking into account the time-dependent effects. Experimental and theoretical aspects are discussed in order to understand the defect tolerance of such materials.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Procedia Structural Integrity - Volume 3, 2017, Pages 18-24
نویسندگان
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