摘要We present a unique method to describe the bonding strength at a bonded solid-solid interface in a multilayered composite material by contact acoustic nonlinearity (CAN) parameter. A CAN model on the bonded solid--solid interface is depicted. It can be seen from the model that CAN parameter is very sensitive to the bonding strength at the interface. When an incident focusing acoustic longitudinal wave scans the interface in two dimensions, the transmitted wave can be used to extract CAN parameter. The contour of the bonding strength for a sample is obtained by CAN parameter. The results show that the region with weak bonding strength can be easily distinguished from the contour.
Abstract：We present a unique method to describe the bonding strength at a bonded solid-solid interface in a multilayered composite material by contact acoustic nonlinearity (CAN) parameter. A CAN model on the bonded solid--solid interface is depicted. It can be seen from the model that CAN parameter is very sensitive to the bonding strength at the interface. When an incident focusing acoustic longitudinal wave scans the interface in two dimensions, the transmitted wave can be used to extract CAN parameter. The contour of the bonding strength for a sample is obtained by CAN parameter. The results show that the region with weak bonding strength can be easily distinguished from the contour.
CHEN Jian-Jun;ZHANG De;MAO Yi-Wei;CHENG Jian-Chun. A Unique Method to Describe the Bonding Strength in a Bonded Solid-S-olid Interface by Contact Acoustic Nonlinearity[J]. 中国物理快报, 2009, 26(1): 14302-014302.
CHEN Jian-Jun, ZHANG De, MAO Yi-Wei, CHENG Jian-Chun. A Unique Method to Describe the Bonding Strength in a Bonded Solid-S-olid Interface by Contact Acoustic Nonlinearity. Chin. Phys. Lett., 2009, 26(1): 14302-014302.
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2009, Vol. 26 
