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Effects of anomalies on fracture processes of graphite fiber reinforced aluminum composite

Su, J. / Wu, G.H. / Li, Y. / Gou, H.S. / Chen, G.H. / Xiu, Z.Y.

Abstract 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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Effects of anomalies on fracture processes of graphite fiber reinforced aluminum composite

Su, J. / Wu, G.H. / Li, Y. / Gou, H.S. / Chen, G.H. / Xiu, Z.Y.

Abstract 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.

Effects of anomalies on fracture processes of graphite fiber reinforced aluminum composite

Su, J. / Wu, G.H. / Li, Y. / Gou, H.S. / Chen, G.H. / Xiu, Z.Y.

Abstract 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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Titel:

Effects of anomalies on fracture processes of graphite fiber reinforced aluminum composite

Beteiligte:

Su, J. (Autor:in) / Wu, G.H. (Autor:in) / Li, Y. (Autor:in) / Gou, H.S. (Autor:in) / Chen, G.H. (Autor:in) / Xiu, Z.Y. (Autor:in)

Erscheinungsdatum:

08.09.2010

Format / Umfang:

8 pages

ISSN:

DOI:

https://doi.org/10.1016/j.matdes.2010.09.013

Medientyp:

Aufsatz (Zeitschrift)

Format:

Elektronische Ressource

Sprache:

Englisch

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