摘要
竹安全帽编织工艺不仅发挥了竹材良好的劈篾性能和力学强度,而且是对传统竹编技术的传承和延伸,具有很高的应用推广价值。竹编安全帽采用经纬编织方法编制而成,具有天然缝隙,透气、透湿性能优良,轻质高强。系统分析了竹编安全帽的材料选择、制作工艺、性能评价,经测试产品的冲击吸收和耐穿刺性能均达到GB/T 2811—2019《头部防护安全帽》标准规定。通过表征竹编安全帽不同结构冲击吸收能量的分布特征,初步阐述了竹编安全帽在落锤撞击过程中的能量传递和破坏规律。研究结果可为竹编安全帽产品的技术进步、标准制定、产品推广提供依据。
Bamboo safety helmet not only gives full play to the good splitting performance and mechanical strength of bamboo materials,but also inherits and extends the traditional bamboo weaving technology,which has high application and promotion value.Bamboo safety helmet is made of warp and weft knitting method,with a large number of crisscross gaps existing in the whole helmet body.This structure endows it with excellent breathability and moisture permeability,as well as light weight and high strength performance.In this study,the bamboo safety helmets were manufactured with different process and materials parameters.Then the performance evaluation of the bamboo woven safety helmet was systematically characterized.The results showed that the impact absorption and puncture resistance of the tested product all meet the provisions of the GB/T 2811—2019"Head Protection Safety Helmet"standard.Furthermore,the law of energy transfer and failure for bamboo safety helmet during process of falling hammer impact were clarified by characterizing the energy distribution absorbed by different structure units of helmet during impact.The research results could provide a basis for the technical progress,standard formulation and product promotion of bamboo woven safety helmet products.
作者
林朝阳
费本华
孙丰波
魏松坡
黄彬
LIN Chao-yang;FEI Ben-hua;SUN Feng-bo;WEI Song-po;HUNAG Bin(Fujian Jianou Chaoyang Bamboo Hat Industry Co.,Ltd.,Jianou 353100,Fujian,P.R.China;International Bamboo and Rattan Centre,Beijing 100020,P.R.China)
出处
《林产工业》
北大核心
2021年第11期27-31,共5页
China Forest Products Industry
基金
国际竹藤中心基本科研业务费专项资金(1632020016)
竹质管道用材连续化制造成套技术集成示范(2016YFD0600906)。
关键词
竹材
安全帽
编织工艺
冲击性能
耐穿刺性能
力学测试
Bamboo
Safety helmet
Knitting process
Impact performance
Puncture resistance
Mechanical tests