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 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|