| About this Abstract |
| Meeting |
MS&T21: Materials Science & Technology
|
| Symposium
|
Fracture of Steels: New Approaches to Modeling and Experimental Characterization
|
| Presentation Title |
Fracture Anisotropy of SS-304L Tubes under Biaxial Loading |
| Author(s) |
Madhav Baral, Yannis P. Korkolis |
| On-Site Speaker (Planned) |
Yannis P. Korkolis |
| Abstract Scope |
The ductile fracture behavior of 304L stainless steel is probed by inflating a tube under axial force and internal pressure. The tubes are inflated under volume control; by measuring the induced pressure and servo-controlling the axial force to follow it, proportional loading paths can be realized. The characteristic of these paths is that the stress state can be controlled very accurately, and thus it can remain constant for most of the experiment. The biaxial experiments are used to calibrate the non-quadratic, anisotropic yield criterion Yld2004-3D. While SS-304L is both rate- and temperature-dependent, this is neglected in this work. A finite element (FE) model of the experiments is first constructed, and is shown to reproduce the experimental responses (stress-strain in the axial and hoop directions) very closely. This model is then used to probe the fracture locus of the SS-304L, which is found to be anisotropic. |