The contribution of NDT tools to assessment of mechanical damage in wood

机译：无损检测工具对木材机械损伤评估的贡献

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The mechanical behavior of spruce (clear wood or structural wood based composites -glulam and LVL- ) has been studied in various situations (bending, tension, compression) up to failure; the progressive process by which those materials break has been observed by different non destructive tests (observation, vibrations, ultrasonics, acoustic emission) associated to the classical stress-strain curve determination. In compression, diffused, micro-ductile damage, is always clearly observed, described and modelled; in tension, parallel or transverse to the grain, damage is micro-brittle and localized and therefore it is difficult to analyse it; acoustic emission seems the best experimental approach.

机译：云杉的机械性能（透明木材或木质结构复合材料-胶合木和LVL-）已在各种情况下（弯曲，张紧，压缩）直至破坏进行了研究；通过与经典应力-应变曲线确定相关的不同非破坏性测试（观察，振动，超声波，声发射）观察到了这些材料破裂的渐进过程。在压缩过程中，总是清楚地观察，描述和建模扩散的微韧性损伤；在与晶粒平行或垂直的张力中，损伤是微脆的且局部的，因此很难对其进行分析；声发射似乎是最好的实验方法。

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来源
《International Symposium on Nondestructive Testing of Wood; 20000913-20000915; Sopron; HU》|2000年|P.165-172|共8页
会议地点 Sopron(HU)
作者
MORLIER Pierre;
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Laboratoire de Rheologie du Bois de Bordeaux;

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原文格式 PDF
正文语种 eng
中图分类木材产品标准与检验;
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The contribution of NDT tools to assessment of mechanical damage in wood

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