动载与静载作用下残余应力对ARALL层板裂纹孔边分层影响的实验研究

ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 1996, Vol. 17 ›› Issue (2): 196-201.

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EXPERIMENTAL STUDY ON EFFECTS ON DELAMINATION NEAR CRACK OF ARALL BY RESIDUAL STRESS UNDER FATIGUE AND STATIC LOADS

Zhong Weihong¹, Chen Changqi¹, Kou Changhe¹, Zheng Ruiqi²

1. Beijing Institute of Aeronautical Materials, Beijing,100095;2. Faculty 104, Beijing University of Aeronautics and Astronautics Beijing, 100083

Received:1994-07-07 Revised:1994-12-21 Online:1996-04-25 Published:1996-04-25

Abstract

Abstract: The delamination near the centre crack of ARALL under fatigue load and static load is investigated, and the effects on delamination of different residual stresses are analyzed. The results show that the situations under the two kinds of loads are different. Under the fatigue load, the typical delamination with crack growth is symmetrical bi\|ellipse. But under the condition of static tensile, the edge\|effects become more evident. Applying a proper pre\|stress to the laminate can increase the ability of anti\|delamination damage.

Key words: composite　laminates, delaminating, residual stress

CLC Number:

Zhong Weihong;Chen Changqi;Kou Changhe;Zheng Ruiqi. EXPERIMENTAL STUDY ON EFFECTS ON DELAMINATION NEAR CRACK OF ARALL BY RESIDUAL STRESS UNDER FATIGUE AND STATIC LOADS[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 1996, 17(2): 196-201.

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EXPERIMENTAL STUDY ON EFFECTS ON DELAMINATION NEAR CRACK OF ARALL BY RESIDUAL STRESS UNDER FATIGUE AND STATIC LOADS

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