STUDY ON BEARING LOAD OF GLASS FIBREBOARD PRE-BURIED  BY HONEYCOMB SANDWICH STRUCTURE

Abstract

Abstract: Honeycomb sandwich structure is a typical composite structure, but the joints and joints of honeycomb sandwich structure are the weak points in the structure. In this paper, for the sandwich structure of carbon fiber panel and Nomex honeycomb, the embedded glass fibreboard plate is used as the force transmission joint to study the bearing performance at the joint of the sandwich structure. The results show that the pre-embedded glass fibreboard can effectively improve the bearing strength of the sandwich structure, and the bearing load increases linearly with the increase of glass fibreboard diameter. Non-destructive testing found the the peeling of glass fibreboard with the panel/honeycomb, indicating that the glass fibreboard and the binder are the medium through which the load is transmitted to the surrounding honeycomb and panel. Attention should be paid to the matching relation between the connecting piece and the embedded part in actual use. Generally, it is suitable for the embedded part of bolt NAS6303-8 (diameter of bolt 4.8 mm) with glass fibreboard diameter of 20 mm, and it is suitable for the embedded part of bolt NAS6304-8 (diameter of bolt 6.4 mm) with glass fibreboard diameter of 30 mm.

Key words: sandwich structure, embedded glass fibreboard, bearing matching

CLC Number:

TB332

ZHAO Xia-jun, LOU Cheng-fei, ZHANG Wei. STUDY ON BEARING LOAD OF GLASS FIBREBOARD PRE-BURIED BY HONEYCOMB SANDWICH STRUCTURE[J]. Fiber Reinforced Plastics/Composites, 2019, 0(7): 69-72.

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STUDY ON BEARING LOAD OF GLASS FIBREBOARD PRE-BURIED BY HONEYCOMB SANDWICH STRUCTURE

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