Abstract
This work aimed to study the Scotch pine energy absorption characteristics under the effect of different radial Static loading rate. Across-compression radial tests were carried out. Under different loading rates, the stress-strain curves showed three stages: elastic stage, stress stage and densification stage. There was obvious strain rate sensitivity of Scotch pine, with the increase of loading rate, the plateau stage of stress-strain curves rose gradually. At the strain rate of 0.06, the loading rate was 1 mm/min, the stress was 4.38 MPa; When the loading rates was 10 mm/min and 30 mm/min, the corresponding stress was 4.71 MPa and 6.56 MPa, respectively. Scotch pine had excellent energy absorption capacity, the energy absorption efficiency of samples could reach 0.7~0.8. The cushioning coefficient curves of the samples were "L" type, and the cushioning coefficient curves decreased with the increase of the strain, but the load rate had little effect. The energy absorption capacity of wood was influenced by different loading rates.
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JIANG Xiang-dong, XU Zhao-yang, LI Jian-yu.
Impact of Radial Static Loading Rate on the Scotch Pine Energy Absorption Characteristics[J]. Packaging Engineering. 2016(11): 16-19
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