What question did this study set out to answer?

The goal is to develop a user-defined model for simulating the non-linear stiffness of struts using PLAXIS.

February 22, 20260 citationsOpen Access

IC MAGE M35 - Non-linear stiffness model for struts

DTDavid M G Taborda MFManuel Matos Fernandes APAntónio M. G. Pedro

Key Points

The goal is to develop a user-defined model for simulating the non-linear stiffness of struts using PLAXIS.
Utilized IC MAGE UMIP framework for model development
Employed hypoelastic formulation for stiffness simulation
Explicitly modeled props with solid elements
Model starts with zero stiffness and asymptotically approaches theoretical stiffness
Demonstrates increased accuracy in predicting strut behavior under varying slack conditions

Abstract

IC MAGE M35 is a user-defined model for PLAXIS built using the IC MAGE UMIP framework which uses a hypoelastic formulation to simulate the non-linear stiffness of struts, which can be affected by slack in various components of the system. The envisaged modelling approach requires the explicit modelling of the prop using solid elements to which this material model must be assigned. Starting with no stiffness, the model uses an hyperbolic law, with the stiffness value increasing asymptotically to its theoretical value.

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