A strain rate dependent brittle fracture model based on continuum damage mechanics
Conference
·
OSTI ID:7127429
Dynamic fracturing in brittle materials is studied in the present investigation using a strain rate dependent continuum damage model. A basic assumption of this model is the existence of a randomly distributed crack network in the material. Under applied tension, these cracks will grow and interact to relieve the stress. This is reflected globally by reducing the stiffness of the material. In compression, the material responds in an elastic/perfectly plastic manner. Explicit strain rate dependence has been included in the model. A brief description of the model will be given. Applications of the model to treat engineering scale problems will be discussed. 13 refs., 16 figs.
- Research Organization:
- Sandia National Labs., Albuquerque, NM (USA)
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 7127429
- Report Number(s):
- SAND-88-0857C; CONF-8805161-1; ON: DE88013361
- Country of Publication:
- United States
- Language:
- English
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