Microplane models have the advantage of describing damage-induced anisotropy, which is common in quasi-brittle materials such as concrete, a simple and straightforward way. Over past decades, various microplane been formulated to describe different loading cases phenomena concrete structures. They include pure damage plasticity based or combination these two approaches. In this work, first step...

A new procedure based on layered feed-forward neural networks for the microplane material model parameters identification is proposed in the present paper. Novelties are usage of the Latin Hypercube Sampling method for the generation of training sets, a systematic employment of stochastic sensitivity analysis and a genetic algorithmbased training of a neural network by an evolutionary algorithm...

The paper presents an improvement of the microplane model for concrete-a con~titutive model in which the nonlinear triaxial behavior is characterized by relations between ~e stress and stram c<?m~onents on a microplane of any orientation under the constraint that the strains on the nucroplane are the .proJection~ of the macroscopic strain tensor. The improvement is achieved by a ~ew conce~t: th...