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《Computerized Tomography Theory and Applications》 2006-01
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A Novel Testing Way for Collective Short Cracks by Industrial CT

XU Xia-gang,ZHAO Xin-bo,ZHANG Ding-hua,AO Bo(The Key Laboratory of Contemporary Design and Integrated Manufacturing Technology,Ministry of Education,Northwestern Polytechnical University,Xi'an 710072)  
Regular NDT(Nondestructive Testing)methods cannot monitor the initiation and expansion process of short cracks inside components effectively.As an advanced NDT method,ICT(Industry Computed Tomography)has some particular advantages which regular NDT methods do not have.Therefore,adopting the latest achievements of recent study on industry CT and fatigue fracture,this paper presented a new supervision method for short fatigue cracks propagation based on density field analysis.Experiment has proved that the proposed method could achieve more precise life prediction of components.
【Fund】: 国家自然科学基金资助项目(50375126);; 航空科学基金项目(04I53069)
【CateGory Index】: TP391.41
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