环氧基复合材料的混合模式分层

ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 1994, Vol. 15 ›› Issue (12): 1456-1462.

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MIXEC-MODE DELAMINATION OF EPOXY-BASED COMPOSITES

Zhao Shixi¹, M. Gaedke², R. Prinz²

1. Faculty 104, Beijing University of Aeronautics and Astronautics, Beijing, 100083;2. German Aerospace Research Establishment, Braunschweig, 38108

Received:1994-02-28 Revised:1994-05-15 Online:1994-12-25 Published:1994-12-25

Abstract

Abstract: he mixed mode bending(MMB)test was employed in an investigation of delamination fracture behavior in static and fatigue loading for graphites/epoxy composites T300/M 10 and HTA/6376.As specimens were loaded at different ratio of α/L for fifferent mixed mode ratios,both the investigated composites exhibited brittle unstable or brittle stable behavior of crack growth.During fatigue loading stable crack growth was observed over the en-tire range of crack lengths investigated.The mixed mode ratio has a distinct effect on the delamination toughness,the fatigue crack growth rate and the threshold of composites.

Key words: graphite-epoxy composites, mixed, mode, strain energy release rate, fatigue testscrack propagation, thresholds

CLC Number:

V25A

Zhao Shixi;M. Gaedke;R. Prinz. MIXEC-MODE DELAMINATION OF EPOXY-BASED COMPOSITES[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 1994, 15(12): 1456-1462.

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MIXEC-MODE DELAMINATION OF EPOXY-BASED COMPOSITES

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