کد مقاله کد نشریه سال انتشار مقاله انگلیسی ترجمه فارسی نسخه تمام متن
266498 504366 2014 10 صفحه PDF سفارش دهید دانلود رایگان
عنوان انگلیسی مقاله ISI
Size effect model for the edge strength of glass with cut and ground edge finishing
ترجمه فارسی عنوان
مدل اثر اندازه برای مقاومت لبه شیشه با برش و پایان لبه زمین
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موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات مهندسی ژئوتکنیک و زمین شناسی مهندسی
چکیده انگلیسی


• The edge strength of glass is influenced by the stressed surface.
• Bending tests with two different beam sizes (length: 550 mm and 1100 mm).
• A reduction of strength was observed for increased specimen size.
• The actual reduction was up to 14% larger than the theory predicts.
• The actual standards do not estimate the size effect conservatively.

The edge strength of glass is influenced by the size of the surface (near the edge) which is subjected to tensile stresses. To quantify this size effect, 8 series of single layer annealed glass beam specimens (as-received glass) were subjected to in-plane four-point bending with linearly increased loading until failure. Within the 8 series, the edge finishing differed between ‘cut’ and ‘ground’, the thickness between 4 and 8 mm and the beam length between 550 and 1100 mm. From the test results a reduction in strength was observed for increased specimen size, which is in line with common expectations. However, the analytical prediction of this reduction by probabilistic laws derived from the literature is unsafe. In fact, these predictions of the strength reduction were up to 14% less conservative than those observed from the presented test results. From this it is concluded that future standards should estimate the size effect more conservatively than currently done by the existing laws in the literature.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Engineering Structures - Volume 79, 15 November 2014, Pages 96–105
نویسندگان
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