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Abstract:
The die shear test is a feasible and conventional method to characterize the shear strength of die-attaching layer materials in electronic packaging. A new method for determining cohesive zone model (CZM) parameters using deep neural networks (DNN) and die shear tests is proposed, different from classical fracture framework or lap shear test-based methods. With the sintered nano-silver die shear test, the results show that the bilinear CZM inversion results agree well with the experimental results. It is found that the DNN model has high accuracy in predicting and identifying the maximum shear traction strength tau max, separation displacement of the interface delta f, and the interface stiffness k1 of CZM parameters for sintered nano-silver adhesive layer through die shear test load versus displacement curves. The presented DNN-aided inverse identifying method through the die shear test in this paper could provide an alternative and convenient method for extracting CZM parameters of various kinds of adhesive materials in electronic packaging. Die shear tests were used for the inverse identification of CZM parameters.The die shear test P-delta curves were established as the dataset.A DNN-aided CZM inverse identification method was proposed.The DNN-aided model can accurately identify the CZM parameters.
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FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES
ISSN: 8756-758X
Year: 2023
Issue: 3
Volume: 47
Page: 766-780
3 . 7 0 0
JCR@2022
Cited Count:
WoS CC Cited Count: 14
SCOPUS Cited Count: 8
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count:
Chinese Cited Count:
30 Days PV: 6
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