• effects of anomalies on fracture processes of graphite fiber reinforced aluminum composite

    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1390/01/01
    • تاریخ انتشار در تی پی بین: 1390/01/01
    • تعداد بازدید: 356
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     to determine the effects of anomalies on fracture processes of graphite fiber reinforced aluminum composite (grf/al), unidirectional grf/al specimens embedded with inclusions and aluminum-rich areas (al-rich) were chosen for bending test. fracture processes and fracture surfaces of anomaly-embedded specimens were analyzed by scanning electron microscopy in situ observation. the micromechanisms of fracture process are as following: interface layer between inclusions and composite is fractured by stress concentration in front of crack tip, and cracks connect voids in inclusions, resulting in failure of inclusion-embedded specimens immediately. however, al-rich eases stress concentration in bending specimens and crack is blunted by al-rich/composite interface debonding and friction during fracture process.

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