Shear Creep Behavior of Ceramics Adhesive Based on Cross-Bonded Method

Abstract

Abstract: In this study, an adhesive shear creep test equipment was designed based on the cross-bonded method. Rigid epoxy resin and flexible silicone structural adhesive were selected for the shear creep test. The effects of ambient temperature, shear stress, bonding area on shear creep were investigated. The shear creep behavior of ceramics adhesive was analyzed and predicted by model fitting. The creep failure mode of these two kinds ceramics adhesives was also analyzed. The results show that the cross-bonded method is easy to operate and applicable to test the creep properties of the ceramics adhesive. The development of creep will be accelerated with the increase of the flexibility of the adhesive layer, the ambient temperature and the shear stress, but the bonding area has little effect on the creep rate. The creep failure mode of rigid epoxy resin adhesive is adhesive layer cohesive failure and interface debonding, which is in accord with the time-harden model. The creep failure mode of flexible silicone structural adhesive is adhesive layer cohesive failure, which is in accord with Burgers model.

Key words: shear creep, cross-bonded method, ceramics adhesive, creep model

CLC Number:

TQ174

LIN Lichen, WAN Detian, LIU Xiaogen, LI Kai, BAO Yiwang, LI Yueming, SUN Yi. Shear Creep Behavior of Ceramics Adhesive Based on Cross-Bonded Method[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2021, 40(9): 3130-3137.

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