Search Results - "Shafique, M.A."

Structural and magnetic studies on Zr doped ZnO diluted magnetic semiconductor by Murtaza, G., Ahmad, R., Rashid, M.S., Hassan, M., Hussnain, A., Khan, Muhammad Azhar, Ehsan ul Haq, M., Shafique, M.A., Riaz, S.

“…In this study, Zirconium doped Zn1−xZrxO (with x = 0.00–0.10) samples have been prepared by formal solid-state reaction technique. The Zr doped ZnO samples…”
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Effect of the thickness on the mixed mode crack front fields by Khan, Shafique M.A

“…Results pertaining to 3D investigations on the effect of the thickness on the stress fields at the crack front are presented. A 3D finite element analysis is…”
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Effect of the thickness on the mixed mode crack front fields by Khan, Shafique M.A.

“…Results pertaining to 3D investigations on the effect of the thickness on the stress fields at the crack front are presented. A 3D finite element analysis is…”
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Dislocation structure during nano-indentation and surface topographic maps by Zafar, Hassaan, Khan, Shafique M. A., Abu-Dheir, Numan

“…Dislocation structure evolution during nano-indentation is investigated using a three-dimensional multi-scale discrete dislocation plasticity model. This model…”
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Internal structures of deformation induced planar dislocation boundaries by Hughes, Darcy A., Khan, Shafique M.A., Godfrey, Andrew, Zbib, Hussein M.

“…The internal structure of planar dislocation boundaries is explored through a coupling of experimental observations of extended geometrically necessary…”
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On the impact-induced damage in glass fiber reinforced epoxy pipes by Alshahrani, Rubaian F., Merah, Nesar, Khan, Shafique M.A., Al-Nassar, Yagoub

“…•Finite element model developed for low velocity impact damage to GFRE composite pipes.•The model is employed to investigate the effect of four incident impact…”
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Multi-scale modeling of dislocation boundaries: Understanding interaction and effect of rotation angle by Khan, Shafique M.A.

“…[Display omitted] •Dislocation boundaries are modeled using multi-scale discrete dislocation approach.•Effect of dislocation boundaries’ rotation angle is…”
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3D effects on crack front core regions, stress intensity factors and crack initiation angles by Khan, Shafique M.A., Merah, Nesar, Adinoyi, Muhammad J.

“…► The effect of the thickness is explicitly investigated using a mixed mode SENT specimen. ► The reduction in the plastic zone size decreases with decreasing…”
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A model for calculating geometry factors for a mixed-mode I–II single edge notched tension specimen by Albinmousa, Jafar, Merah, Nesar, Khan, Shafique M.A.

“…In the present study, a novel approach is presented to obtain closed-form solutions for the geometry factors, which are used to determine the stress intensity…”
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A new criterion for mixed mode fracture initiation based on the crack tip plastic core region by Khan, Shafique M.A., Khraisheh, Marwan K.

“…In this work, we propose a new criterion for mixed mode I-II crack initiation angles based on the characteristics of the plastic core region surrounding the…”
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Towards sensor array materials: can failure be delayed? by Mekid, Samir, Saheb, Nouari, Khan, Shafique M A, Qureshi, Khurram K

“…Further to prior development in enhancing structural health using smart materials, an innovative class of materials characterized by the ability to feel senses…”
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Residual harmfulness of a defect after repairing by a composite patch by Nateche, T., Hadj Meliani, M., Khan, Shafique M.A., Matvienko, Y.G., Merah, Nesar, Pluvinage, G.

“…•The harmfulness of a defect in a CT specimen made in a steel pipe is evaluated after being repaired with a composite patch.•The stress field is evaluated by…”
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Analysis of mixed mode crack initiation angles under various loading conditions by Khan, Shafique M.A., Khraisheh, Marwan K.

“…A detailed analysis of mixed mode I–II crack initiation angles under different loading conditions is presented using different criteria. In addition, the…”
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Stress distributions in a horizontal pressure vessel and the saddle supports by Khan, Shafique M.A.

“…This paper presents analysis results of stress distributions in a horizontal pressure vessel and the saddle supports. The results are obtained from a 3D finite…”
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Laser consecutive pulse heating and phase change: Influence of spatial distribution of laser pulse intensity on melting by Shuja, S.Z., Yilbas, B.S., Khan, Shafique M.A.

“…Laser consecutive pulse heating of solid surface and the influence of the laser pulse parameter on the melting and mushy zone formation in the irradiated…”
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The anisotropic R-criterion for crack initiation by Khan, Shafique M.A., Khraisheh, Marwan K.

“…The anisotropic nature of mixed modes I–II crack tip plastic core region and crack initiation is investigated in this study using an angled crack plate problem…”
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Modeling planar dislocation boundaries using multi-scale dislocation dynamics plasticity by Khan, Shafique M.A., Zbib, Hussein M., Hughes, Darcy A.

“…Results pertaining to the formation and dynamics of planar dislocation boundaries in deformed fcc single crystals using a multi-scale analysis are presented. A…”
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Laser consecutive pulse heating in relation to melting: influence of duty cycle on melting by Shuja, S. Z., Yilbas, B. S., Khan, Shafique M. A.

“…Laser consecutive pulse heating of steel and titanium is considered and the influence of consecutive pulse duty cycle on the melting process is examined. A…”
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Laser heating of semi-infinite solid with consecutive pulses: Influence of materaial properties on temperature field by Shuja, S.Z., Yilbas, B.S., Khan, Shafique M.A.

“…The heating of solid surfaces using consecutive laser pulses is studied and the temperature field inside slabs with different thermal properties is predicted…”
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Maximum Stress Triaxiality Ratio Criterion for Mixed Mode Crack Initiation in Anisotropic Materials by Khraisheh, Marwan K, Shafique MA Khan

“…The maximum stress triaxiality ratio criterion, originally proposed for mixed mode crack initiation in isotropic materials, is adapted for anisotropic…”
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