Unstable crack propagation
The unstable crack propagation takes place with the release of energy and can occur after the previous stable crack growth . The unstable crack propagation proceeds at high speed and generally results in a macroscopic brittle fracture . The beginning of the unstable crack propagation when a critical value of the stress intensity factor is reached is defined as the breakage criterion of the linear-elastic fracture mechanics .
Web links
- Sudden load (accessed on September 21, 2018)
- Simulation of crack propagation using adaptive finite element methods for elastic and plastic materials (accessed on September 21, 2018)
- Fundamentals of fracture mechanics (accessed on September 21, 2018)
- Speed of propagation of unstable cracks in polymers at low temperatures (accessed on September 21, 2018)
- Crack propagation in hard metals (accessed on September 21, 2018)