CAS OpenIR  > 中科院上海应用物理研究所2011-2018年
Image-based numerical simulation of the local cyclic deformation behavior around cast pore in steel
Qian, LH; Cui, XN; Liu, S; Chen, MA; Ma, PH; Xie, HL; Zhang, FC; Meng, JY; Qian, LH (reprint author), Yanshan Univ, State Key Lab Metastable Mat Sci & Technol, Qinhuangdao 066004, Peoples R China.
2016
Source PublicationMATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
ISSN0921-5093
Volume678Pages:347-354
Subtype期刊论文
AbstractThe local cyclic stress/strain responses around an actual, irregular pore in cast Hadfield steel under fatigue loading are investigated numerically, and compared with those around a spherical and an ellipsoidal pore. The actual pore-containing model takes into account the real shape of the pore imaged via high-resolution synchrotron X-ray computed tomography and combines both isotropic hardening and Bauschinger effects by using the Chaboche's material model, which enables to realistically simulate the cyclic deformation behaviors around actual pore. The results show that the stress and strain energy density concentration factors (K-sigma and K-E) around either an actual irregular pore or an idealized pore increase while the strain concentration factor (K-epsilon) decreases slightly with increasing the number of fatigue cycles. However, all the three parameters, K-sigma, K-epsilon and K-E, around an actual pore are always several times larger than those around an idealized pore, whatever the number of fatigue cycles. It is suggested that the fatigue properties of cast pore-containing materials cannot be realistically evaluated with any idealized pore models. The feasibility of the methodology presented highlights the potential of its application in the micromechanical understanding of fatigue damage phenomena in cast pore-containing materials.
KeywordCyclic Deformation Low-cycle Fatigue Local Stress/strain Behavior Image-based Simulation Chaboche's Model
DOI10.1016/j.msea.2016.10.017
Indexed BySCI
Language英语
WOS IDWOS:000387633200038
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/26535
Collection中科院上海应用物理研究所2011-2018年
Corresponding AuthorQian, LH (reprint author), Yanshan Univ, State Key Lab Metastable Mat Sci & Technol, Qinhuangdao 066004, Peoples R China.
Recommended Citation
GB/T 7714
Qian, LH,Cui, XN,Liu, S,et al. Image-based numerical simulation of the local cyclic deformation behavior around cast pore in steel[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2016,678:347-354.
APA Qian, LH.,Cui, XN.,Liu, S.,Chen, MA.,Ma, PH.,...&Qian, LH .(2016).Image-based numerical simulation of the local cyclic deformation behavior around cast pore in steel.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,678,347-354.
MLA Qian, LH,et al."Image-based numerical simulation of the local cyclic deformation behavior around cast pore in steel".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 678(2016):347-354.
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