High-Strain-Rate Failure of a Porous Heterogeneous Composite: Balsa Wood
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Abstract The compression behavior of a naturally occurring porous and heterogeneous biocomposite, balsa wood, along the grain direction is investigated at strain rates 10−3 to 104 s−1. Specimens with different densities, ranging from 55 to 380 kg/m3, were loaded by a modified Kolsky (split Hopkinson) pressure bar apparatus at varying high strain rates and by a screw-driven testing machine at quasi-static strain rates. The mechanical response of balsa wood is documented and the variation of compressive strength, crushing stress and densification strain as a function of density and strain rate is presented. Results show that characteristics of mechanical response for balsa wood are significantly affected by the strain rate and density.
2002 ◽
2014 ◽
Vol 660
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pp. 562-566
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1994 ◽
Vol 04
(C8)
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pp. C8-23-C8-28
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2017 ◽
Vol 36
(1)
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pp. 531-549
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2019 ◽
Vol 54
(5)
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pp. 659-668
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