The Inverse Problem in Polymer Processing

Abstract

Research in polymer processing usually concentrates in studying processing/structure/properties relationships for a given material and technology, in discussing advances in equipment, or in process analysis and simulation. This last aspect has received particular attention in the last few years, as it is important to make available efficient tools for assisting design and optimisation activities. The simulation of a given process usually involves three main steps:

• the physical understanding of the process and the development of a mathematical model;

• solving the relevant governing equations coupled to a material’s constitutive law, for a given system geometry and operating conditions;

• comparing the available experimental data with the simulation predictions, in order to assess the adequacy of the model and, eventually, improving it. The programme can then be used with confidence for engineering purposes.