Statistical characterization of specimen size and temperature dependence of cleavage fracture toughness of ferritic steels

doi:10.1111/ffe.14274

IMECH-IR > 非线性力学国家重点实验室

	Statistical characterization of specimen size and temperature dependence of cleavage fracture toughness of ferritic steels
	Lei, Weisheng 1; Qian GA(钱桂安)2 ; Zhang, Peilei 1
通讯作者	Lei, Wei-Sheng(leiws2008@gmail.com) ; Zhang, Peilei(peilei@sues.edu.cn)
发表期刊	FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES
	2024-03-06
页码	8
ISSN	8756-758X
摘要	Based on the numerical results on the non-linear correlation between volume of plastic zone and global loading level represented by stress intensity factor, the dependence of cleavage fracture toughness of ferritic steels on specimen size and temperature is evaluated based on an empirical statistical model. The statistical correlation is supported by two sets of toughness data measured from different sized compact tension specimens at different temperatures. To further improve the accuracy of the statistical model, future work is identified to quantify the variation of volume of plastic deformation zone with loading level and measure the average volume for each microcrack at different temperature. A non-Weibull statistical model of cleavage toughness is proposed. Dependence of cleavage toughness on temperature and specimen size is studied. The model is validated by two sets of cleavage toughness data. Two research topics are identified for model improvement.
关键词	cleavage fracture toughness ferritic steels specimen size effect statistical model temperature dependence
DOI	10.1111/ffe.14274
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:001179522200001
WOS研究方向	Engineering ; Materials Science
WOS类目	Engineering, Mechanical ; Materials Science, Multidisciplinary
论文分区	二类
力学所作者排名	2
RpAuthor	Lei, Wei-Sheng ; Zhang, Peilei
引用统计
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/94650
专题	非线性力学国家重点实验室
作者单位	1.Shanghai Univ Engn Sci, Sch Mat Engn, Shanghai 201620, Peoples R China; 2.Chinese Acad Sci, Inst Mech, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Lei, Weisheng,Qian GA,Zhang, Peilei. Statistical characterization of specimen size and temperature dependence of cleavage fracture toughness of ferritic steels[J]. FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES,2024:8.
APA	Lei, Weisheng,钱桂安,&Zhang, Peilei.(2024).Statistical characterization of specimen size and temperature dependence of cleavage fracture toughness of ferritic steels.FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES,8.
MLA	Lei, Weisheng,et al."Statistical characterization of specimen size and temperature dependence of cleavage fracture toughness of ferritic steels".FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES (2024):8.