Sökning: "continuum damage"
Visar resultat 1 - 5 av 56 avhandlingar innehållade orden continuum damage.
1. Continuum modelling of the mechanical response of paper-based materials
Sammanfattning : Continuum based elasto-plastic-damage models for paperboard have been established in this work. The thesis begins with an introductory section that describes the mechanical properties of paperboard and some of the converting processes during forming of a package. LÄS MER
2. Simulation of strain softening behaviour of brittle rock : a continuum damage mechanics approach
Sammanfattning : .... LÄS MER
3. Ductile damage modeling of the machining process
Sammanfattning : Machining processes are among the most common manufacturing processes for producing components used on a daily basis. It is a complex material removal process. Today, the research and development within the manufacturing industry is addressed by cost efficient numerical simulation strategies rather than by costly experimental procedures. LÄS MER
4. Development of Energy-based Damage and Plasticity Models for Asphalt Concrete Mixtures
Sammanfattning : Characterizing the full range of damage and plastic behaviour of asphalt mixtures under varying strain-rates and stress states is a complex and challenging task. One reason for this is partly due to the strain rate and temperature dependent nature of the material as well as the variation in the properties of the constituent materials that make up the composite asphalt mixture. LÄS MER
5. Continuum modeling of paperboard for the mechanical response of converting processes
Sammanfattning : Paperboard is a thin and lightweight material made of cellulose fibers and it is an important component in packaging material where it provides stiffness and rigidity. The scope of this work is the development of continuum models, and its numerical treatments, for simulating the processes of converting paperboard into packages. LÄS MER