| About this Abstract |
| Meeting |
Materials Science & Technology 2020
|
| Symposium
|
2020 Undergraduate Student Poster Contest
|
| Presentation Title |
Crack Driving Force Expressions Using Compliance Approach in Clamped Beam Bending Geometry |
| Author(s) |
Tejas Shailesh Chaudhari, Ashwini Kumar Mishra, Hrushikesh Pravin Sahasrabuddhe, Nagamani Jaya Balila |
| On-Site Speaker (Planned) |
Tejas Shailesh Chaudhari |
| Abstract Scope |
The geometric stability for controlled crack growth is shown, and stress intensity factor solutions are derived in single edge-notched clamped beam specimens (SENCB) in the previous work. In the present study, numerical simulations are carried out through an extended finite element method (XFEM) to derive crack driving force solutions for different beam aspect ratios (L/W) and elastic moduli (E). In the case of linear elastic fracture mechanics (LEFM), the crack driving force is also known as the energy release rate (G). The expressions for G are derived using an energy-based compliance approach, which is more convenient to execute in a realistic scenario. The variations in G with crack length (a) through the compliance approach are compared with those obtained directly from XFEM. Experimental validation of the G obtained has also been carried out at the macro-scale using a linear elastic material poly-methyl methacrylate (PMMA). |