The physical and mechanical properties of treated and untreated Gigantochloa Scortechinii bamboo

Non-linear behaviour and failure mechanism of bamboo poles in bending

“…Historically, the bending behaviour of bamboo poles has been studied based on traditional experimental bending tests and Euler-Bernoulli theory [10]. Most studies assume bamboo to be an isotropic, straight and circular hollow element undergoing small deformations [8,[11][12][13][14][15][16]. The practical challenges involved in the effective implementation of these traditional tests and the applicability of these assumptions on a highly organic and flexible orthotropic tube can be a potential compounding factor responsible for the wide variability of results and low design values for structural bamboo usually reported in the literature.…”

“…Previous studies based on clear bamboo samples [7,18,19] do not show evidence of any significant ductility in the material itself and alternative mechanisms responsible for this nonlinearity have not been previously investigated. Furthermore, failure mechanisms have been traditionally attributed to axial crushing or buckling of the bamboo wall in compression or longitudinal splitting caused by tension or shear [20,21,22] as a simplification of the more complex experimental behaviour reported in the literature [8,11,13,16]. Moreover, the stresses developed due to these mechanisms at the linear elastic limit are significantly lower than the corresponding ultimate values of the material Apart from the development of the ultimate axial and shear stresses in bamboo poles in bending, other theoretical failure mechanisms and potential sources of nonlinearity in isotropic hollow tubes in bending include local and global buckling effects as well as the ovalization of the cross section (Brazier effect) as the curvature of the tube increases [24].…”

Determination of the physical and mechanical properties of moso, guadua and oldhamii bamboo assisted by robotic fabrication

“…The bamboo procured for this study is representative of the commercially available material in three global regions with very different levels of industrial development reflected in distinct local plantation management practices and treatment methods. Treatment methods in particular are likely to modify the internal structure of bamboo to varying degrees which in turn can affect its mechanical properties, as shown by Daud et al [22] for leaching and by Yongqian et al [23] for carbonisation treatments. Additional comparison studies beyond the scope of this work are required to study the effect of these complex factors on the properties of bamboo which further justifies the need to adopt efficient and consistent fabrication and testing methods for clear bamboo samples.…”

Effect of preservative treatment on physical and mechanical properties of bamboo (Gigantochloa scortechinii) strips

“…In terms of strength, boron-based preservatives have been reported to affect it to some extent (Kartal et al 2008;De Souza Almeida et al 2019). In contrast, some studies show that the strength increased proportionately with the treatment (Perçin et al 2015;Daud et al 2018).…”