1979
DOI: 10.1515/hfsg.1979.33.3.68
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The Effect of Knots on the Fracture Strength of Wood - I. A Review of Methods of Assessment

Abstract: Keywords Knots Fracture mechanics Equivalent crack length Knot ratio Stress concentration \ Schlüsselwörter (Sachgebiete) Äste Bruchmechanik Äquivalente Bruchlänge Astverhältnis Spannungskonzentration The Effect of Knots on the Fracture Strength of Wood. I. A Review of Methods of Assessment SummaryPart I of this paper reviews various approaches, other than conventional visual and mechanical stress grading procedures, that have been used to non-destmctively assess the Strength of knotted timber. In each case th… Show more

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Cited by 7 publications
(2 citation statements)
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“…The penetration depths of bulleted wood material are related to the physical properties of wood [20,21] The timber's derogations (like the inhomogeneity) affect its mechanical properties, including the projectile's performance. The behavior of a bullet in timber is also unpredictable due to many invisible knots of the timber that reduce the strength and endurance of wood [20,[22][23][24]. Projectiles did not show deformation after penetration into Douglas, European pine, and European oak targets.…”
Section: Bulletproof Materialsmentioning
confidence: 99%
“…The penetration depths of bulleted wood material are related to the physical properties of wood [20,21] The timber's derogations (like the inhomogeneity) affect its mechanical properties, including the projectile's performance. The behavior of a bullet in timber is also unpredictable due to many invisible knots of the timber that reduce the strength and endurance of wood [20,[22][23][24]. Projectiles did not show deformation after penetration into Douglas, European pine, and European oak targets.…”
Section: Bulletproof Materialsmentioning
confidence: 99%
“…E.g. Denzler (2007), Isaksson (1999), Boatright and Garrett (1979a;1979b), Courchene et al (1996), Mitsuhashi et al (2008) and have analysed the interrelation between ultimate bending and/or tensile capacity for different knot indicators. Mention that many times the load-bearing capacity of the weakest section (e.g.…”
Section: Introductionmentioning
confidence: 99%