Rate-dependent stress-strain behavior of polymeric materials
نویسندگان
چکیده
منابع مشابه
Stress-Strain Behavior of Cementitious Materials with Different Sizes
The size dependence of flexural properties of cement mortar and concrete beams is investigated. Bazant's size effect law and modified size effect law by Kim and Eo give a very good fit to the flexural strength of both cement mortar and concrete. As observed in the test results, a strong size effect in flexural strength is found in cement mortar than in concrete. A modification has been suggeste...
متن کاملHybrid Lattice Particle Modelling Approach for Polymeric Materials Subject to High Strain Rate Loads
Hybrid Lattice Particle modelling (HLPM) is an innovative particular dynamics approach that is established based on a combination of the particle modelling (PM) technique together with the conventional lattice modelling (LM) theory. It is developed for the purpose of simulating the dynamic fragmentation of solids under high strain rate loadings at macroscales with a varying Poisson's ratio. HLP...
متن کاملComputer simulations of true stress development and viscoelastic behavior in amorphous polymeric materials
Molecular dynamics simulations were employed to study the mechanical properties and true stress development in amorphous polymeric materials. As expected, the true stress levels are much higher than those indicated by the engineering stress. However, the true stress behavior was found to be not only quantitatively but also qualitatively different from that of the engineering stress. Highly loca...
متن کاملStrain Rate Effects in Metallic Cellular Materials
The high strain rate behavior of two cellular materials was investigated using a quasi-static loading stage and a Kolsky bar apparatus. The yield stress of these core materials under dynamic loading was found higher than in quasi-static loading. However, the plateau stress after yielding is not so sensitive to strain rate. For Aluminum foam materials, the deformation was more localized for quas...
متن کاملStress effects on the elastic properties of amorphous polymeric materials.
Brillouin light scattering measurements have been used to study the stress induced modification in the elastic properties of two glass forming polymers: polybutadiene and epoxy-amine resin, prototypes of linear and network polymers, respectively. Following the usual thermodynamic path to the glass transition, polybutadiene has been studied as a function of temperature from the liquid well into ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Applied Polymer Science
سال: 1976
ISSN: 0021-8995,1097-4628
DOI: 10.1002/app.1976.070201226