发明名称 PROCESS TO FRACTURE CONNECTING RODS AND THE LIKE WITH RESONANCE-FATIGUE
摘要 <p>A process to fracture connecting rods and the like, that are made of high strength materials, comprises of the following mechanisms: (a) Fatigue: fluctuation of stresses in a pre-notched connecting rod due to the use of harmonic excitation will extend the notch tip in the connecting rod and will weaken the predetermined fracture plane by creating micro-cracks. (b) Resonance: resonance occurs when the frequency of the used harmonic excitation matches a natural frequency of the connecting rod, idealized as a structural system. (c) Pre-stressing forces: by applying pre-stressing forces acting in the sam e loading mode, the stresses in the connecting rod due to several force components can be superimposed. (d) Dynamic force: applying a dynamic force will raise the stress intensity factor, exceeding the fracture toughness of the material.</p>
申请公布号 CA2287140(C) 申请公布日期 2001.02.13
申请号 CA19992287140 申请日期 1999.10.13
申请人 BHATTACHARJEE, SUDIP;GUIRGIS, SAMEH 发明人 BHATTACHARJEE, SUDIP;GUIRGIS, SAMEH
分类号 B23D31/00;F16C9/04;(IPC1-7):B26F3/00;B23P17/00 主分类号 B23D31/00
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