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  • 2005-2009  (2)
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  • 1
    Electronic Resource
    Electronic Resource
    Finite Geometrically Similar Element Method for Dynamic Problem of a Cracked Specimen (2008)
    s.l. ; Stafa-Zurich, Switzerland
    Advanced materials research Vol. 33-37 (Mar. 2008), p. 375-380 
    Details
    ISSN: 1662-8985
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: A group of geometrically similar elements is automatically generated layer by layeraround the tip of crack. By taking advantage of the same stiffness and similar mass of similarlyshaped elements, the combined stiffness matrix and combined inertia matrix in area [removed info] can beexpressed by the displacement row matrix of outer polygon. The global stiffness matrix will beobtained if the combined stiffness matrix and combined inertia matrix of area [removed info] are assembled tothose of another elements according to corresponding nodes. The small set of generalizedcoordinates can be obtained through solving the equation, and then the dynamic stress intensityfactor of crack will be obtained. The three points bending with single crack and shearing modelwith double cracks in explosive loading were calculated with finite geometrically similar elementmethod
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/40/transtech_doi~10.4028%252Fwww.scientific.net%252FAMR.33-37.375.pdf
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  • 2
    Electronic Resource
    Electronic Resource
    Applied Research of Fracture for Brass in Extra-Low Cycle Rotating Bending Fatigue (2005)
    s.l. ; Stafa-Zurich, Switzerland
    Key engineering materials Vol. 297-300 (Nov. 2005), p. 1139-1145 
    Details
    ISSN: 1013-9826
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: The application of regular blanking for brass under extra-low cycle rotating bending fatigue was studied. The experiments of rotating bending fatigue have been made in special equipment designed by us. Several problems, the relations of the cycle times of fracture, the strain amplitude near the tip of notch and fracture toughness of fatigue to the presetting deflection, the effects of depth and tip radius of notch to the cycle times of fracture, were discussed through the experiments. The formulae of stress amplitude at the tip of notch and fracture toughness of brass to presetting deflection were obtained. The suitable parameters of fracture in rotating bending fatigue for blanking of brass under extra-low cycle times have been proposed
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/50/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.297-300.1139.pdf
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