Neural network meta‐model of fibrous materials based on discrete‐event simulation. Part 1: discrete‐event simulation model of one‐dimensional fibrous material

A Combined Discrete Event—Agent Based Approach to Modeling Tensile Strength of One-Dimensional Fibrous Materials. Face Validation and Effect of the Basic Model Parameters

“…Prior to testing the strength model, simulation of the ODFM with the following parameter values was carried out: normal distribution of the fiber length with average fiber length (FLmean) of 30 mm and standard deviation (Fstd) of 3 mm; exponential distribution of the fiber front ends with the average distance between these ends (TB) of 1 mm. These parameters of the ODFM model have been used as a basic set of parameters for testing and validation of the ODFM model [26]. The same ODFM model was used for the tensile strength model validation.…”

“…Figure 5 presents a situation when all restrictions on the fibers and holes activities were canceled but the limit value of the fiber exchange threshold (CT = 1) does not permit any type of exchanges. When we study the irregularity of the ODFM, such a model can be regarded as one-dimensional [26]. But, in the framework of the zero-order tensile strength model it is necessary to calculate the total number and length of contacts between fibers, and this model should be classified and studied as three dimensional.…”

“…The parameters of the flow of fibers affect the strength of the fibrous material and are taken into account in the first level model. The nonlinear dependence of the number of fibers in the cross section on the fibers front ends and on the fiber lengths distribution is implemented in the ODFM DES-model [26]. The number of fibers in the cross section, the fiber length and twist multiplier are the most important parameters that determine the number and the length of the contacts within the structure of the ODFM and hence its tensile strength [27].…”

A Combined Discrete Event, Agent - Based Approach to Modeling the Tensile Strength of One - Dimensional Fibrous Materials

“…For this reason these traditional methods are not suitable for studying "point-properties of the ODFM," properties along the length of the ODFM. In previously published works we proposed a new approach for modeling and studying the properties of ODFM [25], [26]and related technological processes http://www.jeffjournal.org Volume 9, Issue 4 -2014 [27], [28]which can trace each single fiber within the ODFM structure. This approach is based on the concept of discrete-event simulation (DES) [29][30][31].…”

“…This coordinate is generated by the DES model and the fiber is a passive element of the model. This representation of a fibrous material model is quite adequate to the problem of the one-dimensional fibrous material irregularity [25,26]. An application of the concept and methods of agent-based modeling in this case is unnecessary.…”