Design Issues Of Thermal Induced Effects And Temperature Dependent Material Properties In Abaqus
Author(s)
I. Both, F. Wald, R. Zaharia
Abstract
Structural fire design is greatly increasing the use of numerical models for fire resistance assessment. Besides the dedicated software which includes the necessary setup for thermo-mechanical analysis, general purpose software, like Abaqus, is used for uncommon cases which may regard material models or complex behaviour defined by springs. In this paper, the theoretical considerations for material properties are compared to the approaches of computational models. Thermal induced effects in structural analysis by constant temperature and gradient are described starting from basic relations to software input data. The concrete damaged plasticity material model is discussed regarding the behaviour of concrete at elevated temperatures. Simple examples are presented to demonstrate the proper use of material properties and thermal input data.
Keywords
thermal expansion coefficient, temperature gradient, thermomechanical analysis, concrete damaged plasticity
Related Book
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