![]() Given the stress state at time t, and the total strain increment for a timestep, Δt, the purpose is to determine the corresponding stress increment and the new stress state at time t + Δt. Explicit Scheme and Incremental FormulationįLAC3D uses an explicit, incremental formulation for constitutive models. The material here provides an overview and highlights full reference documentation is available in the FLAC3D Help. Note that while there is no restriction on the creation of models, solving a model larger than 600 zones that uses a constitutive model plugin requires the Plugin Option. This page details the advantages of using FLAC3D to create custom material behavior, and gives a simple example of the process required. They are treated exactly like one of the program's built-in constitutive models. These models are compiled using the C++ programming language into plugins that can be loaded into FLAC3D on startup. FLAC3D includes the ability to create your own customized material behavior via user-defined constitutive models. ![]()
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