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Strain Measurements within Fibre Boards. Part II: Strain Concentrations at the Crack Tip of MDF Specimens Tested by the Wedge Splitting Method

التفاصيل البيبلوغرافية
العنوان: Strain Measurements within Fibre Boards. Part II: Strain Concentrations at the Crack Tip of MDF Specimens Tested by the Wedge Splitting Method
المؤلفون: Jörn Rathke, Johannes Konnerth, Ulrich Müller, Gerhard Sinn
المصدر: Materials, Vol 5, Iss 8, Pp 1495-1507 (2012)
بيانات النشر: MDPI AG, 2012.
سنة النشر: 2012
المجموعة: LCC:Technology
LCC:Electrical engineering. Electronics. Nuclear engineering
LCC:Engineering (General). Civil engineering (General)
LCC:Microscopy
LCC:Descriptive and experimental mechanics
مصطلحات موضوعية: electronic laser speckle interferometry, wedge splitting, medium density fiber board, fracture mechanics, process zone, Technology, Electrical engineering. Electronics. Nuclear engineering, TK1-9971, Engineering (General). Civil engineering (General), TA1-2040, Microscopy, QH201-278.5, Descriptive and experimental mechanics, QC120-168.85
الوصف: This is the second part of an article series where the mechanical and fracture mechanical properties of medium density fiberboard (MDF) were studied. While the first part of the series focused on internal bond strength and density profiles, this article discusses the fracture mechanical properties of the core layer. Fracture properties were studied with a wedge splitting setup. The critical stress intensity factors as well as the specific fracture energies were determined. Critical stress intensity factors were calculated from maximum splitting force and two-dimensional isotropic finite elements simulations of the specimen geometry. Size and shape of micro crack zone were measured with electronic laser speckle interferometry. The process zone length was approx. 5 mm. The specific fracture energy was determined to be 45.2 ± 14.4 J/m2 and the critical stress intensity factor was 0.11 ± 0.02 MPa.
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
تدمد: 1996-1944
Relation: http://www.mdpi.com/1996-1944/5/8/1495; https://doaj.org/toc/1996-1944
DOI: 10.3390/ma5081495
URL الوصول: https://doaj.org/article/36eb8c1725ea495bab725cee09d95fe2
رقم الأكسشن: edsdoj.36eb8c1725ea495bab725cee09d95fe2
قاعدة البيانات: Directory of Open Access Journals
الوصف
تدمد:19961944
DOI:10.3390/ma5081495