Three Failure Models for CFRP Composites Tongji Univ

Format:

Book

Conference/Event

Author/Creator:

Yu, Haiyan, author.

Contributor:

Wu, Hangyu

Conference Name:

SAE WCX Digital Summit (2021-04-13 : Live Online, Pennsylvania, United States)

Language:

English

Physical Description:

1 online resource cm

Place of Publication:

Warrendale, PA SAE International 2021

Summary:

Several failure criteria and stiffness degradation laws for composite materials were summarized and compared from the points of precision and convenience of use. The 2D/3D Hashin failure criteria were matched with the Tan's, Tserpes and 3D Zinoviev stiffness degradation rules. Three new failure models including 2D Hashin-Tan, 3D Hashin-Tser and 3D Hashin-Zin were presented for CFRP materials. The above three models were coded and incorporated into the ABAQUS software by user subroutines, among which model 2D Hashin-Tan and model 3D Hashin-Tser were programmed using the implicit algorithm VUSDFLD while model 3D Hashin-Zin was coded using the explicit algorithm VUMAT. Experiments of uniaxial tension and three-point bending were performed. A single element subjected to uniaxial tension and three-bending were simulated to check the function and precision of the new models. The simulation results showed that the three models could predict the stress-strain response very well and the average precision of the new models was above 97% in the simulation of a plane plate subjected to uniaxial tension. Among the three models, the 2D Hashin-Tan model could predict the fibers/matrix failure due to tension/compression/shear except delamination. The 3D Hashin-Zinoviev model could well predict the delamination behavior of the CFRP plate. The 2D Hashin-Tan model and 3D Hashin-Tserpes model had the better computation efficiency than the 3D Hashin-Zinoviev model

Notes:

Vendor supplied data

Publisher Number:

2021-01-0310

Access Restriction:

Restricted for use by site license