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- Onifade, Ibrahim,1983-KTH,Byggnadsmaterial (author)
Continuum Plasticity Mechanics (CPM) - An energy-based plasticity model - Application to asphalt concrete mixtures.
- Article/chapterEnglish
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- LIBRIS-ID:oai:DiVA.org:kth-198662
- https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-198662URI
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- Language:English
- Summary in:English
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- QS 201612
- A new generalized energy-based elasto-plastic constitutive model for both pressure-sensitive and pressure insensitive materials is developed and presented in this paper. The model is developed with the energy formulation which inherently captures the rate-sensitivity and can be used to model a wide range of materials ranging from rate-dependent materials such as polymers and asphalt concrete to rate-independent materials such as steel. No additional rate-dependency parameters is required to model rate dependent behaviour at different strain-rates. The new energy-based plasticity formulation takes a similar form as the conceptsused in continuum damage mechanics with the plastic strain transformed into a plasticity variable whichenters into the formulation to obtain the corresponding stress and strain due to the applied or subjected load conditions. The new energy-based plasticity formulation fits nicely into the thermodynamics framework thereby providing a true unifying framework for coupling damage and plasticity
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- TEKNIK OCH TEKNOLOGIER Samhällsbyggnadsteknik hsv//swe
- ENGINEERING AND TECHNOLOGY Civil Engineering hsv//eng
- Continuum Plasticity Mechanics CPM
- energy-based plasticity
- plasticity variable
- viscoplasticity
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- KTHByggnadsmaterial (creator_code:org_t)
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- In:International Journal of Solids and Structures0020-76831879-2146
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