Results 21 to 30 of about 7,881 (109)

Mechanism of crack branching in the fatigue crack growth path of 2324-T39 Aluminium alloy [PDF]

Fracture and Structural Integrity, 2016
The crack growth behavior in 2324-T39 aluminium alloy was experimentally investigated. Two types of crack branching were observed. The mechanism of an uncommon crack branching which results from the link up of secondary crack with the main crack was ...
Lu Songsong, Bao Rui, Zhang Ting, Fei Binjun   +3 more
doaj   +1 more source

Influence of secondary dendrite arm spacing (SDAS) on the fatigue properties of different conventional automotive aluminum cast alloys

Fracture and Structural Integrity, 2019
For industrial in-series castings, the presence of casting defects, like porosity, geometrically complex intermetallic precipitates and the occurrence of eutectic silicon of varying morphologies, is well known but hard to prevent due to technical and ...
Sascha Gerbe, Ulrich Krupp, Wilhelm Michels   +2 more
doaj   +3 more sources

Prediction of Crack Propagation Directions in Dissimilar Metal-Welded Joints Using Phase-Field Models and Discussion of Its Mechanisms

Science and Technology of Nuclear Installations
Stress corrosion cracking (SCC) in dissimilar metal-welded joints (DMWJs) poses a significant threat to the safe operation of nuclear power plants. This study employs the phase-field method to analyze crack propagation paths at various positions in DMWJs
Lingyan Zhao, Bin Yang, Zheng Wang
doaj   +1 more source

Dynamic Simulation of Complex Multiple-Crack Evolution Under Blast Loading Using a Nonlocal Macro-Meso-Scale Consistent Damage Model

Modelling
An explicit dynamic framework based on the Nonlocal Macro-Meso-scale Consistent Damage (NMMD) model is proposed to simulate complex multiple-crack evolution in quasi-brittle materials subjected to blast loading.
Qianxu Yang, Guangda Lu, Xiaozhou Xia
doaj   +1 more source

Surface crack growth subject to bending and biaxial tension-compression

Fracture and Structural Integrity, 2015
Fatigue surface crack growth and the in-plane and out-of-plane constraint effects are studied through experiments and computations for aluminium alloy D16T.
V. Shlyannikov, A. Tumanov, A. Zakharov, A. Gerasimenko   +3 more
doaj  

Research on hydrogen induced cracking behavior and service performance of metal pipeline material

Frontiers in Materials
This study systematically investigates the fracture behavior of X80 pipeline steel welded joints under hydrogen-induced cracking (HIC) conditions through combined experimental characterization and numerical simulation.
Yongjun Jia, Yongjun Jia, He Xue, Zheng Wang   +3 more
doaj   +1 more source

Microcrack evolution and permeability enhancement due to thermal shocks in coal.

PLoS ONE, 2020
To understand the effects of thermal shock on microcrack propagation and permeability in coal, thermal shock tests were conducted on coal specimens by using a constant temperature drying oven (105 °C) and a SLX program controlled cryogenic tank.
Hongtu Zhang, Dengke Wang, Chong Yu, Jianping Wei, Shumin Liu, Jianhua Fu   +5 more
doaj   +1 more source

Controlling fatigue crack paths for crack surface marking and growth investigations [PDF]

Fracture and Structural Integrity, 2016
While it is well known that fatigue crack growth in metals that display confined slip, such as high strength aluminium alloys, develop crack paths that are responsive to the loading direction and the local microstructural orientation, it is less well ...
S. Barter, P. White, M. Burchill
doaj  

Stress Intensity Factor (SIF) Solutions and Fatigue Crack Paths in Eccentric Circumferentially Cracked Round Bar (CCRB) in Tension. [PDF]

Materials (Basel), 2023
Toribio J, Matos JC, González B.
europepmc   +1 more source

A multiscale mesoscopic model for investigating the evolution characteristics of tunnel lining cracks and the variation of local bearing capacity

Case Studies in Construction Materials
Understanding the load-bearing capacity of tunnel lining is crucial for ensuring safe operation. However, obtaining accurate spatial parameters of cracks remains challenging, even though surface crack characteristics are easily accessible.
Zhi Lin, Xiang Chen, XiLin Lü, Hongyun Yang, Wanlin Feng, ZhangLong Xu   +5 more
doaj   +1 more source