Browsing Institutt for konstruksjonsteknikk by Author "Li, Yang"
Now showing items 1-5 of 5
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CAFE based Multi-scale Modelling of Ductile-to-Brittle Transition of Steel with a Temperature Dependent Effective Surface Energy
Li, Yang; Shterenlikht, Anton; Ren, Xiaobo; He, Jianying; Zhang, Zhiliang (Journal article; Peer reviewed, 2019)It is still a challenge to numerically achieve the interactive competition between ductile damage and brittle fracture in ductile-to-brittle transition (DBT) region. In addition, since two types of fracture occur at two ... -
Constraint effect on the brittle-to-ductile transition of single-crystal iron induced by dislocation mobility
Li, Yang; Ren, Xiaobo; He, Jianying; Zhang, Zhiliang (Journal article, 2018)The brittle-to-ductile transition (BDT), no matter what the dominated mechanism is, dislocation nucleation or dislocation motion, is not an intrinsic phenomenon of material, and depends not only on the strain rate but also ... -
The Effect of Thermal Residual Stresses on Ductile-to-Brittle Transition of a Welded TMCR Steel by Using CAFE Method
Li, Yang; Ren, Xiaobo; He, Jianying; Zhang, Zhiliang (Peer reviewed; Journal article, 2019)The effect of residual stress on fracture of materials or structures has been widely studied. However, its influence on ductile-to-brittle transition (DBT), a crucial phenomenon of structural materials, has rarely been ... -
A multi-barrier model assisted CAFE method for predicting ductile-to-brittle transition with application to a low-carbon ultrahigh-strength steel
Li, Yang; Pallaspuro, Sakari; Ren, Xiaobo; He, Jianying; Kömi, Jukka; Zhang, Zhiliang (Peer reviewed; Journal article, 2020)The conventional micromechanical approaches today are still not able to properly predict the ductile-to-brittle transition (DBT) of steels because of their inability to consider the co-operating ductile fracture and cleavage ... -
Numerical Study on Ductile-to-Brittle Transition of Steel and its Behavior under Residual Stresses
Li, Yang (Doctoral theses at NTNU;2019: 227, Doctoral thesis, 2019)The transition of fracture mode from ductile to brittle (DBT) is a crucial phenomenon of structural materials, e.g. body centered cubic (BCC) metals, which are normally brittle at low temperatures or high loading rates, ...