๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

Constitutive approach to rate-independent properties of filled elastomers

โœ Scribed by M. Kaliske; H. Rothert

Publisher
Elsevier Science
Year
1998
Tongue
English
Weight
914 KB
Volume
35
Category
Article
ISSN
0020-7683

No coin nor oath required. For personal study only.

โœฆ Synopsis

Filled rubber material is used in many technical applications. These structures are often subjected to dynamic loading. Apart from the material's stiffness characteristics dissipative properties are of great importance. At high frequencies rubber material behaves mainly viscoelastically. But at low strain-rate the response is nearly rate-independent. This observation can be interpreted as "internal material friction" and is dealt with in the following article. A constitutive approach is presented, which can be motivated by investigations on the molecular level. This phenomenological description is composed of an elastic model--idealized as an elastic spring--and elasto-plastic Prandtl-elements in parallel. The formulation is derived for small and finite strains. The large strain case is based on a multiplicative decomposition of the deformation gradient. Experimental results and numerical simulations are presented utilizing a mixed finite element formulation to give a robust algorithm and reliable results.

๐Ÿ“œ SIMILAR VOLUMES

A general approach to the evaluation of
A general approach to the evaluation of consistent tangent operators for rate-independent elastoplasticity
โœ G. Alfano; L. Rosati ๐Ÿ“‚ Article ๐Ÿ“… 1998 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 1016 KB

We present a general approach to the derivation of the explicit expression of tangent operators, consistent with the finite-step integration schemes of the flow rule, for rate-independent elastoplastic models with mixed hardening. By exploiting the model of generalized standard material, we show tha

A model-independent approach to the theo
A model-independent approach to the theory of experimental designs and a special discussion of bib. II. properties and construction of bib
โœ D. Rasch; G. Herrendurfer ๐Ÿ“‚ Article ๐Ÿ“… 1980 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 548 KB

## Abstract In addition to the first part we prove independently of the model some theorems on properties of balanced block designs. Then we propose nine methods of construction of BIB and prove theorems in connection with these methods. In a table we give a survey on block designs with __v__$25 an