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Browsing by Author "Xu, Y."
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An approximate expression of KImax for sphere/nozzle corner cracks
Xu, Y.; Xu, Y. (1996-08-01)Based on the flat-nozzle model loaded by uniform biaxial tension, using the O-integral of the weight function method and introducing suitable free-surface correcting factors M, M, and a curvature correcting factor M, an ... -
Dispersoid and grain size effects on fatigue crack growth in AA2024-type alloys
Xu, Y.; Gregson, P.J.; Sinclair, I. (2000-01-01)Fatigue crack growth resistance is known to be influenced by a combination of intrinsic materials behaviour and crack shielding processes. In metallic alloys, shielding due to crack closure is known to be important, however, ... -
The fundamental solution of Mindlin plates with damping in the Laplace domain and its applications
Wen, P. H.; Adetoro, M.; Xu, Y. (2008-10)In this paper, a fundamental solution for the Mindlin plate theory with damping is derived in the Laplace transform domain first time. The applications of this fundamental solution are demonstrated by the method of fundamental ... -
Improved fatigue and damage tolerant material design for aerospace industry
Xu, Y.; Chen, J.; Li, J.; Zhu, Z. (2005-11-01)Various micro-mechanical and micro-structural influences on fatigue crack growth resistance of the material have been investigated over the years. It is widely recognized that resistance to fatigue crack growth can be ... -
Improvement of newman's model on fatigue crack closure
Li, J.; Xu, Y.; Zhu, Z. (2006-01-01)Newman had brought his crack closure model. It is done well in simple closure model, but it is not exactitude when there is a complex elastic-plastic region in crack front and has a variety stress-ratio. The paper improved ... -
Inverse heat conduction problems by using particular solutions
Wen, P.H.; Hon, Y.C.; Xu, Y. (2011)Based on the method of fundamental solutions, we develop in this paper a new computational method to solve two-dimensional transient heat conduction inverse problems. The main idea is to use particular solutions as radial ... -
Load reconstruction on a missile structure using the Pseudo-Inverse methods
Vishwakarma, R.; Turner, D.; Lewis, A.; Chen, Y.; Houghton, P.; Xu, Y. (Institute of Electrical and Electronics Engineers (IEEE), 2010-01-01)A missile during air carriage is subjected to high vibratory forces. These forces consequently impose high levels of stress on the attachment points to the aircraft A repetitive application of stress causes fatigue. However, ... -
Planck Cold Clumps in the λ Orionis Complex. I : Discovery of an Extremely Young Class 0 Protostellar Object and a Proto-brown Dwarf Candidate in the Bright-rimmed Clump PGCC G192.32-11.88
Liu, T.; Zhang, Q.; Kim, K.-T.; Wu, Y.; Lee, C.W.; Lee, J.-E.; Tatematsu, K.; Choi, M.; Juvela, M.; Thompson, M.A.; Goldsmith, P.F.; Liu, S.Y.; Naomi, H.; Koch, P.; Henkel, C.; Sanhueza, P.; He, J.; Rivera-Ingraham, A.; Wang, K.; Cunningham, M.R.; Tang, Y.-W.; Lai, S.-P.; Yuan, J.; Li, D.; Fuller, G.; Kang, M.; Nguyen Luong, Q.; Liu, H.B.; Ristorcelli, I.; Yang, J.; Xu, Y.; Hirota, T.; Mardones, D.; Qin, S.-L.; Chen, H.-R.; Kwon, W.; Meng, F.; Zhang, H.; Kim, M.-R.; Yi, H.-W. (2016-01-14)We are performing a series of observations with ground-based telescopes toward Planck Galactic cold clumps (PGCCs) in the λ Orionis complex in order to systematically investigate the effects of stellar feedback. In the ... -
Simulation of Near-Tip Crack Behaviour and Its Correlation to Fatigue Crack Growth with a Modified Strip-Yield Model
Wang, L.; Chen, Y.K.; Tiu, W.; Xu, Y. (2008)A modified strip-yield model has been developed to simulate the plasticity-induced crack closure under the constant amplitude (CA) and a single overload loading conditions. The paper focuses on the simulation of the near ... -
Systematic assessment and validation of compliance-based crack closure measurements in fatigue
Xu, Y.; Gregson, P.J.; Sinclair, I. (2000-01-01)Different methods of closure measurement and issues related to the identification of closure points are examined. Based on compliance curves obtained from crack mouth clip gauges and near-tip strain gauges, a systematic ...