Modeling the Effect of Elastic Modulus of the Second Phase Particle on Crack Propagation Using FECEM Southeast University

Format:

Book

Conference/Event

Author/Creator:

Liao, Hengcheng, author.

Contributor:

Gao, Yuan

Wang, Qigui

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:

For the cases where perfect interface is not assumed and crack propagation path is unknown, the fully embedded zero-thickness cohesive element model (FECEM) is an alternative simulation method to model crack growth. In our newly developed FECEM model, the common element is triangle 3-node element under two-dimensional condition and the interface element is a quadrilateral cohesive element with zero thickness. From the simulation by FECEM, it is found that the elastic modulus of the second phase particle in a ductile matrix has a significant effect on crack propagation behavior. When the particle encounters the propagating crack, if it is softer than the matrix, the crack will be attracted towards the particle and then will puncture into it. If the particle is harder than the matrix, it will slow down the propagation of the crack. The simulation using the FECEM truly exhibits the process of interior crack initiation and propagation at the interface, which is in good agreement with the experiment

Notes:

Vendor supplied data

Publisher Number:

2021-01-0313

Access Restriction:

Restricted for use by site license