Journal of Materials Research and TechnologyThe evolution of residual stresses (RS) at a crack tip and associated changes in crack shielding effects during fatigue crack growth (FCG) has a first order effect on the fatigue life of welded joints.
Zhe Zhang +3 more
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Anisotropic fracture mechanics of pre-cracked T4,4,4-Graphyne Nanosheets: Effects of crack geometry and temperature. [PDF]
PLoS ONEAn atomistic study is conducted to elucidate the fracture behavior of pristine and centrally pre-cracked T4,4,4-graphyne nanosheets (150 Å × 150 Å) under uniaxial tension in both X- and Y-directions.
Chuanyuan Tan, Ali Ghasemi
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Bending-fatigue-resistant hierarchical NiTi shape memory alloy [PDF]
Nature CommunicationsThe bending fatigue resistance of superelastic shape memory alloys (SMAs) is a key determinant for their reliable function in cyclic applications such as biomedical implants, adaptive actuators, and elastocaloric devices.
Kai Yan +10 more
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Damage-programmable design of metamaterials achieving crack-resisting mechanisms seen in nature [PDF]
Nature CommunicationsThe fracture behaviour of artificial metamaterials often leads to catastrophic failures with limited resistance to crack propagation. In contrast, natural materials such as bones and ceramics possess microstructures that give rise to spatially ...
Zhenyang Gao +7 more
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Dual-bond fracture metamaterials with full-field extrinsic toughening [PDF]
Nature CommunicationsFracture resistance presents a pivotal challenge in mechanical metamaterials, as traditional designs often fail to mitigate crack propagation and enhance energy dissipation. Despite efforts to enlarge the fracture process zone, energy dissipation remains
Zhiqiang Meng +4 more
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The influence of crack tip shielding on fatigue crack propagation [PDF]
Fracture and Structural Integrity, 2017 The fatigue crack propagation is one of the major problems and of the real concern in the evaluation of the structural integrity of components. This is due to the fact that once a fatigue crack has been detected it is also known its effect on the ...
Anghel Cernescu
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Experimental evaluation of plasticity-induced crack shielding from crack tip displacements fields [PDF]
Fracture and Structural Integrity, 2015 In this work it is proposed a methodology for the evaluation of plasticity-induced crack shielding from the analysis of the crack tip displacements fields measured by digital image correlation.
J.M. Vasco-Olmo, F.A. Díaz
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Thermomechanical modeling on the crack initiation of NiTi shape memory alloy [PDF]
Computer Methods in Materials Science, 2022 The fracture of shape memory alloys is distinct from that of conventional metals, owing to the coexistence and interaction of multiple special features such as martensitic transformation, dislocation-induced plasticity, thermomechanical coupling and ...
Dongjie Jiang, Yao Xiao
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Extension of the CJP model to mixed mode I and mode II [PDF]
Fracture and Structural Integrity, 2013 The present authors have previously proposed a novel ‘plastic inclusion’ approach for dealing with the local plasticity which occurs at the tip of a growing fatigue crack.
C. J. Christopher +2 more
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Influence of crack offset distance on the interaction of multiple cracks on the same side in a rectangular plate [PDF]
Fracture and Structural Integrity, 2015 In the present work finite element method has been employed to study the interaction of multiple cracks in a finite rectangular plate of unit thickness with cracks on the same side under uniaxial loading conditions.
Neeraj Bisht, P. C. Gope, Kuldeep Panwar
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