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Journal of Wood Science

Official Journal of the Japan Wood Research Society

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Simultaneous determination of shear strength and shear modulus in glued-laminated timber using a full-scale shear block specimen

Journal of Wood Science volume 56, pages 262–266 (2010)Cite this article

Abstract

A newly developed full-scale shear block specimen was used to simultaneously determine the shear strength and shear modulus of glued-laminated timber. The shear modulus was calculated using the shear strain distribution measured by means of digital image correlation. To obtain the exact relationship between shear modulus and shear strength, the shear strain in the intended shear plane was measured. A relatively high correlation coefficient of 0.75 was found between the shear modulus and nominal shear strength in two types of glued-laminated timber tested: sugi (Cryptomeria japonica) and Douglas-fir (Pseudotsuga menziesii). Good correlation was also found between the density of middle lamina and shear strength. However, the relationships to density showed species dependence, which was not observed in the relationship between shear modulus and shear strength.

References

  1. Okkonen EA, River BH (1989) Factors affecting the strength of block-shear specimens. For Prod J 39:43–50

    CAS  Google Scholar 

  2. Soltis LA, Rammer DR (1994) Shear strength of unchecked glued-laminated beams. For Prod J 44:51–57

    Google Scholar 

  3. Ido H, Nagao H, Kato H (2004) Evaluation of shear strength of sugi (Cryptomeria japonica) lumber using a full-scale block-shear test jig (in Japanese). Mokuzai Gakkaishi 50:220–227

    CAS  Google Scholar 

  4. Müller U, Sretenovic A, Gindl W, Teischinger A (2004) Longitudinal shear properties of European larch wood related to cell-wall structure. Wood Fiber Sci 36:143–151

    Google Scholar 

  5. Sretenovic A, Müller U, Gindl W, Teishinger A (2004) New shear assay for the simultaneous determination of shear strength and shear modulus in solid wood: finite element modeling and experimental results. Wood Fiber Sci 36:302–310

    CAS  Google Scholar 

  6. Divos F, Tanaka T, Nagao H, Kato H (1998) Determination of shear modulus on construction size timber. Wood Sci Technol 32:393–402

    CAS  Google Scholar 

  7. Ukyo S, Karube M, Harada M, Hayashi T, Murata K (2008) Determination of the shear modulus of wood with standard shear block specimen (in Japanese). J Soc Mater Sci 57:317–321

    Article  Google Scholar 

  8. Murata K, Masuda M, Ukyo S (2005) Analysis of strain distribution of wood using digital image correlation method: four-point bend test of timber including knots (in Japanese). Trans Visualiz Soc Jpn 25:57–63

    Article  Google Scholar 

  9. Popov EP (1998) Engineering mechanics of solids. Prentice-Hall, Englewood Cliffs, NJ

    Google Scholar 

Download references

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Authors and Affiliations

  1. Forestry and Forest Products Research Institute, 1 Matsunosato, Tsukuba, 305-8687, Japan

    Seiichiro Ukyo, Hirofumi Ido, Hirofumi Nagao & Hideo Kato

Authors
  1. Seiichiro Ukyo
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  2. Hirofumi Ido
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  3. Hirofumi Nagao
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  4. Hideo Kato
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Correspondence to Seiichiro Ukyo.

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Ukyo, S., Ido, H., Nagao, H. et al. Simultaneous determination of shear strength and shear modulus in glued-laminated timber using a full-scale shear block specimen. J Wood Sci 56, 262–266 (2010). https://doi.org/10.1007/s10086-009-1083-8

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  • DOI: https://doi.org/10.1007/s10086-009-1083-8

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