Abstract
The compression properties of natural bamboo were tested, and the crush morphologies with different moisture contents and fibrous structure were observed. Real-time acoustic emission (AE) and optical microscope videos captured the compression behaviors. Dry bamboo internodes showcased 100% higher compression strength with shearing as the predominant failure mode, while the wet samples demonstrated delamination and splitting. AE and fracture morphology indicated five compression behavior categories. Bamboo node samples exhibited heightened compressive strength and modulus than internodes due to their coarser 3D fibrous structures. This investigation offers valuable insights for the development of engineering bamboo materials.
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