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FLEXURAL FATIGUE OF LAMINATED WOOD

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Author(s): B. A. Bondarev | S. V. Povetkin

Journal: Scientific Herald of the Voronezh State University of Architecture and Civil Engineering
ISSN 2075-0811

Volume: 4;
Issue: 4;
Start page: 4;
Date: 2010;
Original page

Keywords: laminated wood | cyclic loading | material fatigue and endurance | natural and technological defects of wood

ABSTRACT
Problem statement. Local damage accumulation in goods and construction elements ultimately leading to a failure occurs due to fluctuating load effect. Results and conclusions. The results of the analysis of the experimentally obtained analytical dependences of strength characteristics and resistance to cracks of profiled laminated wood during bending in products and designs are presented. This products and designs operate under static and cyclic loading. Stresses under which cracks form in pilot samples are established from the results, as well as maximum permissible lengths of cracks for static and cyclic load. Effect of natural and technological defects of laminated wood is taken into account. Recommendation on application of laminated wood in products and designs which experience force cyclic loading under operation are given.
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