Abstract
With the rapid development of modern technology, high or low temperature environment has become an important factor which can not be ignored. Therefore, the fracture problem caused by loads due to thermal environment has become the key issue in the safety assessment and optimization design of engineering structures. The thermal stress intensity factors (TSIFs) under thermo-mechanical loads is determined by a finite element discretized method (FEDSM). The overall cracked body is separated into two regions: a singular region near the crack tip and a regular region far away from the crack tip. Firstly, Hamiltonian system is introduced to derive the analytical solutions in the singular region. Secondly, the formula of FEDMS is obtained by the analytical solutions. Lastly, the effects of the thermal environments on the TSIFs are discussed in a number of numerical examples.
| Translated title of the contribution | Fracture analysis of engineering structures in thermal environment |
|---|---|
| Original language | Chinese (Simplified) |
| Pages (from-to) | 258-262 |
| Journal | 东北大学学报（自然科学版） |
| Volume | 34 |
| Issue number | SUPPL.2 |
| Publication status | Published - Dec 2013 |
Research Keywords
- Finite element discretized symplectic method
- Fracture mechanics
- Thermal stress intensity factor(TSIF)
- Thermo-mechanical loads
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