Abstnct-A continuum damage ma%nics model for low-cycle fatigue is presented. The rupture time of hot rolled type RS50 steel is predicted by the damage model and compared with those measured with excellent agreement. It is shown that the proposed damage model can predict the rupture time of material
A model of continuum damage mechanics for high cycle fatigue of metallic materials
โ Scribed by Liang ZHANG; Xue-song LIU; Lin-sen WANG; Shuang-hui WU; Hong-yuan FANG
- Book ID
- 119580038
- Publisher
- Elsevier Science
- Year
- 2012
- Tongue
- English
- Weight
- 958 KB
- Volume
- 22
- Category
- Article
- ISSN
- 1003-6326
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Al~rset--Continuum damage mechanics is an effective approach to model ductile failure. The same concepts can be extended to the low cycle fatigue damage process, where plasticity is still the key mechanism for crack initiation. In addition, in low cycle fatigue a relevant part of life is spent by th
Experimental results show that the inherent ductility in a material is deflected after cycle loading. Based on the concept of ductility deflection, a new fatigue damage variable D\* for low-cycle fatigue is recommended in this paper. This new damage variable D\* has definite physical meaning and can
We know from experimental phenomena that the ductility of materials decreases with increasing numbers of cycles in the process of cycle fatigue loading, from which a new fatigue damage variable D \* based on the material ductility property is defined. Then a continuum damage mechanics model for low-