Effect of Ezplosion Waves on Wood Chips Stacked in a Closed Vessel
Results from an experimental investigation on the ruptured behavior of wood chips loaded by explosion wave are presented. At the top of a closed steel vessel stuffed with wet wood chips, the embedded explosive charge was detonated. The pressure in this porous media was measured by four piezoelectric sensors. The results show that the ruptured effect of the chips can be divided into three regions, namely, shattered zone, fracture zone, compaction zone. The decay of peak pressure values at different measuring points showed perfect exponential correlation with the corresponding distances. Based on the experimental results and observations, mechanisms of rupture are proposed to interpret the fragmentation phenomena. Its believed that the wood chips were shattered by expolsive waves rather than quasi-static pressure. To achieve appropriate explosive effect, we recommend using adequate amount of explosives along with small interval and multiple-point loading.
ezplosion wave wood chip fragmentation disintegrated fibre attenuation
LIU Yunchuan DOU Jinlong LIU Liansheng Wu Chunping WANG Xuguang
University of Science and Technology Beijing, Beijing, China Hebei Polytechnic University,Tangshan, Beijing General Research Institute of Mining and Metallurgy, Beijing, China University of Science and Technology Beijing, Beijing, China Hebei Polytechnic University, Tangshan,
国际会议
The Second Asian-Pacific Symposium on Blasting Techniques(第二届亚太地区爆破技术研讨会)
大连
英文
126-132
2009-07-01（万方平台首次上网日期，不代表论文的发表时间）