Mechanical models of the behaviour of plastic materials: influence of time and temperature

作者：Avalle M^*; Peroni M; Scattina A

来源：Latin American Journal of Solids and Structures, 2010, 7(1): 41-61.

• behaviour modelling of materials
• crash
• plastic materials

Modelling the mechanical behaviour of plastics in the simulation of phenomena involving large strains and large displacements, as in crash simulations, is a complex task due to the highly non-linear characteristics of these materials. Moreover, non negligible influences of strain-rate, multiaxial loading, and temperature are present and must be taken into account accordingly. This work presents some results about the modelling of these effects for a thermoplastic used in automotive components. The model was developed based on experimental results obtained in different loading conditions, with different temperature and strain-rate. The time factor was investigated both in short term loading (dynamic loading) and long term tests (creep loading). Both these loading cases are very important in plastic parts design.

• 出版日期2010