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Research on damage mechanism and protection of the collision penetration of the thin-walled long rod structure
Science Progress ( IF 2.1 ) Pub Date : 2019-09-16 , DOI: 10.1177/0036850419874216 Zhi Zhi 1 , ShiYong Guo 1 , LuWei Chen 1 , Yan Zhu 2
Science Progress ( IF 2.1 ) Pub Date : 2019-09-16 , DOI: 10.1177/0036850419874216 Zhi Zhi 1 , ShiYong Guo 1 , LuWei Chen 1 , Yan Zhu 2
Affiliation
With the rapid development of economy, the urban motor vehicle population in the world is growing rapidly. The number of traffic accidents is also on the rise in China.1,2 According to the road traffic safety research institute of the ministry of public security, China’s urban road traffic accident accounts for 45.8% of the country’s road traffic accidents in 2018, and the number of casualties in urban road traffic accidents accounts for 38.8% of that. In order to separate vehicle, isolate pedestrian, and reduce the incidence of urban road accidents, the government has set up the isolation guardrails in the middle of the road and on both sides of the road, which is regarded as a powerful tool for harnessing traffic congestion. Although it diverts two-way lanes, motor lanes and non-motor lanes, the disadvantages of this practice are also increasingly prominent, leading to traffic accidents “secondary injury.” From 2005 to 2012, among the major road traffic accidents that killed more than 10 people at one time across the country, those involving road guardrails (mainly refer to rushing out/rushing through the side guardrails or central isolation guardrails) account for 20.8% of the total number of accidents.3 The main reason is that the country makes relevant provisions only on the highway waveform guardrail, but there are no corresponding national standards for the isolation guardrail on the urban road. As a result, all kinds of guardrails in urban roads are different from each other and have great potential safety hazards, which cause unpredictable casualties and property losses. It can be seen that road traffic accidents have become a major threat to the China’s social public safety and health. Therefore, the research of automobile safety and human body injury protection has very important practical significance.4,5
更新日期：2020-04-10
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