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A new method to estimate the plane strain fracture toughness of materials
Li, He Fei; Duan, Qi Qiang; Zhang, Peng; Qu, Rui Tao; Zhang, Zhe Feng
2019-02-01
Source PublicationFATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES
ISSN8756-758X
Volume42Issue:2Pages:415-424
AbstractAlthough the testing method for fracture toughness K-IC has been implemented for decades, the strict specimen size requirements make it difficult to get the accurate K-IC for the high-toughness materials. In this study, different specimen sizes of high-strength steels were adopted in fracture toughness testing. Through the observations on the fracture surfaces of the K-IC specimen, it is shown that the fracture energy can be divided into 2 distinct parts: (1) the energy for flat fracture and (2) the energy for shear fracture. According to the energy criterion, the K-IC values can be acquired by small-size specimens through derivation. The results reveal that the estimated toughness value is consistent with the experimental data. The new method would be widely applied to predict the fracture toughness of metallic materials with small-size specimens.
Keywordflat fracture fracture toughness shear fracture specimen thickness
Indexed BySCI
Language英语
WOS IDWOS:000455215800002
PublisherWILEY
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/81415
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
Li, He Fei,Duan, Qi Qiang,Zhang, Peng,et al. A new method to estimate the plane strain fracture toughness of materials[J]. FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES,2019,42(2):415-424.
APA Li, He Fei,Duan, Qi Qiang,Zhang, Peng,Qu, Rui Tao,&Zhang, Zhe Feng.(2019).A new method to estimate the plane strain fracture toughness of materials.FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES,42(2),415-424.
MLA Li, He Fei,et al."A new method to estimate the plane strain fracture toughness of materials".FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES 42.2(2019):415-424.
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