Analysis of tension and bending fracture behavior in moso bamboo (Phyllostachys pubescens) using synchrotron radiation micro-computed tomography (Sk mu CT)

doi:10.1515/hf-2018-0275

CORC > 上海应用物理研究所 > 中国科学院上海应用物理研究所 > 中科院上海应用物理研究所2011-2017年

	Analysis of tension and bending fracture behavior in moso bamboo (Phyllostachys pubescens) using synchrotron radiation micro-computed tomography (Sk mu CT)
	Liu, HR ; Peng, GY ; Chai, Y ; Huang, AY ; Jiang, ZH ; Zhang, XB
刊名	HOLZFORSCHUNG
	2019
卷号	73 期号:12 页码:1051-1058
关键词	CRACK-PROPAGATION RAY WOOD FIBER MICROSTRUCTURE FATIGUE DAMAGE MICROTOMOGRAPHY PERFORMANCE TOUGHNESS
ISSN号	0018-3830
DOI	10.1515/hf-2018-0275
文献子类	期刊论文
英文摘要	Bamboo is a natural bio-composite material that is both tough and possesses excellent mechanical properties. Its delicate structure and fiber arrangements play an important role in the mechanical properties and the fracture performance of bamboo. In this study, the fracture behaviors of bamboo due to tensile strength and bending were investigated using synchrotron radiation micro-computed tomography and environmental scanning electron microscopy (FSEM). Both tension and bending tests revealed that fibers are the key factors for bearing extra load and impeding crack propagation. Crack paths were found to be different in bamboo strips with different fiber percentages, and the interface between pulled-out fiber bundles and fiber break (in helix breaks and shearing break) was observed to be typical fracture characteristics in tension. Moreover, advanced micro-matrix cracking, interface debonding, fiber bundle bridging and the splitting of cell wall layers were found to be important fracture characteristics in bending. Both in tension and bending, a reasonably weak interface appeared to be beneficial for improving fracture toughness of fiber-reinforced bamboo. Thus, it is clear that "fiber bridging" mechanisms and "shear-lag theory" are well exhibited in bamboo.
语种	英语
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/31964]
专题	上海应用物理研究所_中科院上海应用物理研究所2011-2017年
作者单位	1.Natl Forestry & Grassland Adm, Key Lab Bamboo & Rattan Sci & Technol, 8 Futong Eastern St,Wangjing Area, Beijing, Peoples R China; 2.Cent South Univ Forestry & Technol, Coll Mat Sci & Technol, Changsha, Hunan, Peoples R China 3.Int Ctr Bamboo & Rattan, Dept Biomat, Beijing, Peoples R China; 4.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai, Peoples R China;
推荐引用方式 GB/T 7714	Liu, HR,Peng, GY,Chai, Y,et al. Analysis of tension and bending fracture behavior in moso bamboo (Phyllostachys pubescens) using synchrotron radiation micro-computed tomography (Sk mu CT)[J]. HOLZFORSCHUNG,2019,73(12):1051-1058.
APA	Liu, HR,Peng, GY,Chai, Y,Huang, AY,Jiang, ZH,&Zhang, XB.(2019).Analysis of tension and bending fracture behavior in moso bamboo (Phyllostachys pubescens) using synchrotron radiation micro-computed tomography (Sk mu CT).HOLZFORSCHUNG,73(12),1051-1058.
MLA	Liu, HR,et al."Analysis of tension and bending fracture behavior in moso bamboo (Phyllostachys pubescens) using synchrotron radiation micro-computed tomography (Sk mu CT)".HOLZFORSCHUNG 73.12(2019):1051-1058.