Results 31 to 40 of about 86,765,181 (295)

Effect of constraint on ductile crack growth and ductile-brittle fracture transition of a carbon steel [PDF]

, 1997
Ductile-brittle fracture transition was investigated using compact tension (CT) specimens from -70oC to 40oC for a carbon steel. Large deformation finite element analysis has been carried out to simulate the stable crack growth in the compact tension (CT,
Mai, Y. W., Y.W. Mai, Yan, C., C. Yan
core   +1 more source

Size-dependent brittle-to-ductile transition in GaAs nano-rods

, 2014
GaAs is brittle at room temperature at the macro-scale; however, ductility emerges when its characteristic dimension reduces to the nano-scale. Using molecular dynamics simulations, we reveal that there is a brittle-to-ductile transition in GaAs nano ...
Shen, Y., Lu, Chunsheng, Lu C, Ke, F., 柯孚久, Wang, J., Bai, Y., Shen YG, Lu, C (reprint author), Curtin Univ, Dept Mech Engn, Perth, WA 6845, Australia., 白以龙, Song, F., 宋凡, 王军   +12 more
core   +2 more sources

Burial depth interval of the shale brittle–ductile transition zone and its implications in shale gas exploration and production

Petroleum Science, 2017
Brittleness and ductility of shale are closely related to shale gas exploration and production. How to predict brittleness and ductility of shale is one of the key issues in the study of shale gas preservation and hydraulic fracturing treatments.
Yu-Song Yuan, Zhi-Jun Jin, Yan Zhou, Jun-Xin Liu, Shuang-Jian Li, Quan-You Liu   +5 more
doaj   +1 more source

Improvement of Hoek-Brown strength criterion considering critical state for rock brittle-ductile transition

Meitan xuebao
The Hoek-Brown strength criterion is widely used in the field of rock engineering, but its application in the brittle-to-ductile transition of deep rock is relatively limited.
Jing ZHANG, Zonghong ZHOU, Yansong HAN, Hai LIU, Zhihua OUYANG   +4 more
doaj   +1 more source

Ductile and brittle transition behavior of titanium alloys in ultra-precision machining

Scientific Reports, 2018
Titanium alloys are extensively applied in biomedical industries due to their excellent material properties. However, they are recognized as difficult to cut materials due to their low thermal conductivity, which induces a complexity to their deformation
W. S. Yip, S. To
doaj   +1 more source

Application of a Tensile Test Method to Identify the Ductile-Brittle Transition of Caramel

Foods, 2022
During cutting of foods, tensile stresses in front of the blade are responsible for the separation of the material. Therefore, tensile tests can be helpful to gain knowledge on deformation properties related to pre-fracture cutting behavior as well as on
Dennis Schab, Lydia Tiedemann, Harald Rohm, Susann Zahn   +3 more
doaj   +1 more source

Study on impact properties of Ti6211 titanium alloy at different temperatures [PDF]

MATEC Web of Conferences, 2020
In this paper, Charpy notched pendulum test was used to study the impact properties of Ti6211 titanium alloy at -60 ℃, -40 ℃, -20 ℃, 23 ℃, 100 ℃, 200 ℃ and 300 ℃, respectively, and the fracture morphology was analyzed.
Tian Yanwen, Hao Fang, Xu Enen, Du Junqi
doaj   +1 more source

Ductile-to-brittle transition in aluminum alloys

Materials Research Letters
Here we exploited room (298 K) – and cryogenic (77 K) – temperature mechanical behaviors of binary Al-Mg alloys across a wide range of magnesium concentration (i.e. 2.8–13.1 at.%). We observed ductile-to-brittle transition at 77 K as Mg content increases
Dengshan Zhou, Xiuzhen Zhang, Xueyong Pang, Zitong Zhao, Xinren Chen, Shaolou Wei, Chao Yang, Wu Gong, Stefanus Harjo, Rongguang Li, Deliang Zhang, Gaowu Qin   +11 more
doaj   +1 more source

Ductile–Brittle Transition Temperature of Epoxy Asphalt Concrete of Steel Bridge Deck Pavement Based on Impact Toughness

Advances in Materials Science and Engineering, 2023
To solve the common low-temperature cracking problem of epoxy asphalt concrete pavement on the steel bridge deck, based on the principle of fracture mechanics and energy method, this paper puts forward the impact toughness as the evaluation index of ...
Shunxian Zhang, Wen Nie, Aimin Sha, Weixiong Li, Wei Jiang   +4 more
doaj   +1 more source

Surface imaging of metallic material fractures using optical coherence tomography [PDF]

, 2014
We demonstrate the capability of optical coherence tomography (OCT) to perform topography of metallic surfaces after being subjected to ductile or brittle fracturing.
Demian, D., Hutiu, G., Bradu, Adrian, Podoleanu, Adrian G.H., Duma, V.F.   +4 more
core   +1 more source