1. Introduction

DIANA offers a large number of material models for structural and flow analysis. The first two parts of this Volume Material Library tell you how to specify the input data for these models.^1.1The last part gives the background theory of the various models. The next section of this chapter presents the general input syntax for material properties [§1.1]. The last section presents the input syntax for time dependency of temperature, concentration and maturity [§1.2]. This input is only appropriate for ambient influence on the material properties, i.e., if the actual properties depend on temperature, concentration or maturity.