干旱区生态环境知识资源中心(Arid): Dynamic behaviors and protection mechanisms of sulcata tortoise carapace

Arid

DOI	10.1080/10255842.2021.1892661
	Dynamic behaviors and protection mechanisms of sulcata tortoise carapace
	Jearanaisilawong, P.; Jongpairojcosit, N.; Glunrawd, C.
通讯作者	Jearanaisilawong, P (corresponding author), King Mongkuts Univ Technol North Bangkok, Dept Mech & Aerosp Engn, Fac Engn, Bangkok, Thailand.
来源期刊	COMPUTER METHODS IN BIOMECHANICS AND BIOMEDICAL ENGINEERING
ISSN	1025-5842
EISSN	1476-8259
出版年	2021
英文摘要	This paper presents the compressive behavior of tortoise carapace at high strain rates and its protection mechanisms under impact loading. Both experimental and numerical results are reported. Tortoise is a land-based desert-dwelling animal taxonomically classified in the order of Testudines. The carapace is the dome-shaped upper part of the tortoise shell that protects its body from predator attacks. The carapace structure is composed of four layers formed as a composite structure with a porous core. The outer surface is keratin scutes made of fibrous structural proteins. The remaining layers are bone-like materials which are dorsal cortex, cancellous interior and ventral cortex. The compressive behavior at high rate of deformation is examined using split Hopkinson pressure bar (SHPB) technique. The results shown in the stress-strain plot illustrate a strain-rate hardening effect. The impact test is conducted using a gas gun with 6.35-mm diameter steel bearing balls as projectiles. The responses of carapace sample under a range of impact velocities are investigated to analyze its protection mechanisms. The numerical model of impact test is created to obtain an insight into mechanical behaviors of the carapace structure that cannot be observed in the experiments. The strain rate dependent material model is defined based on the SHPB test results. The distributions of stress and rebound velocity are presented and discussed.
英文关键词	Tortoise carapace protection mechanisms split Hopkinson pressure bar impact test
类型	Article ; Early Access
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000625527600001
WOS类目	Computer Science, Interdisciplinary Applications ; Engineering, Biomedical
WOS研究方向	Computer Science ; Engineering
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/352110
作者单位	[Jearanaisilawong, P.] King Mongkuts Univ Technol North Bangkok, Dept Mech & Aerosp Engn, Fac Engn, Bangkok, Thailand; [Jongpairojcosit, N.] Minist Def, Off Permanent Secretary Def Chaengwattana, Def Technol Inst, Nonthaburi, Thailand; [Glunrawd, C.] King Mongkuts Univ Technol North Bangkok, Sirindhorn Int Thai German Grad Sch Engn TGGS, Bangkok, Thailand
推荐引用方式 GB/T 7714	Jearanaisilawong, P.,Jongpairojcosit, N.,Glunrawd, C.. Dynamic behaviors and protection mechanisms of sulcata tortoise carapace[J],2021.
APA	Jearanaisilawong, P.,Jongpairojcosit, N.,&Glunrawd, C..(2021).Dynamic behaviors and protection mechanisms of sulcata tortoise carapace.COMPUTER METHODS IN BIOMECHANICS AND BIOMEDICAL ENGINEERING.
MLA	Jearanaisilawong, P.,et al."Dynamic behaviors and protection mechanisms of sulcata tortoise carapace".COMPUTER METHODS IN BIOMECHANICS AND BIOMEDICAL ENGINEERING (2021).