Knowledge Answer

Ki sa ki se 'Groove Wall Yielding' e poukisa li mennen nan echèk asanble katastwofik?

2026-06-16 FAQ

Groove wall yielding occurs when the axial stress $σ_a$ applied by the retaining ring exceeds the yield strength $σ_y$ of the housing or shaft material. This stress is $σ_a = \frac{P}{\pi \cdot D \cdot d}$. As the wall yields, it creates a 'ramp' effect. Under cyclic loading, the ring 'walks' up this ramp until it clears the groove. This is 'catastrophic'...

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Official Answer

Answer

Rann miray ranpa a rive lè estrès axial $σ_a$ aplike pa bag kenbe a depase fòs sede $σ_y$ nan materyèl la lojman oswa arbr. Estrès sa a se $σ_a = \frac{P}{\pi \cdot D \cdot d}$. Kòm miray ranpa a bay, li kreye yon efè 'ranp'. Anba chaj siklik, bag la 'mache' moute ranp sa a jiskaske li netwaye Groove la. Sa a se 'katastwofik' paske souvan pa gen okenn avètisman anvan eleman nan lage. Nan lojman aliminyòm (egzanp, 6061-T6), sa a se yon echèk komen. Ranje a se sèvi ak yon asye 'Groove Insert' oswa ogmante pwofondè Groove $d$ pou bese estrès la, depi arbr a ka okipe $K_t$ ogmante.