This paper presents a mixed finite element model for the nonlinear time-dependant analysis of composite beams with partial shear connection. The key idea is to consider, as a first approach, a viscoelastic/plastic model for the concrete slab in order to simulate the interaction between the time effects of concrete, such as creep and shrinkage, and the concrete cracking. Creep is taken into acco...

Abstract. The results of experimental studies the efficiency manufacturing polymer foundry models by FDM method are presented. Rational consumables for 3D-printing revealed. optimal values shrinkage value 3D-model during printing and parameters 3D-printer operation mode It has been established that casting molds rationally manufactured printing, using ABS-plastic as a consumable, while making c...

Plastic shrinkage cracking is a problem for the service life, aesthetics and durability of concrete members. It occurs when tensile stresses are induced in fresh concrete, through plastic that restrained. caused by negative capillary pressure build-up, but can be controlled to prevent shrinkage. In this paper, control using high-capacity sensors explored. The behaviour self-compacting mix desig...

Plastic injection molding is discontinuous and a complicated process involving the interaction of several variables for control the quality of the molded parts. The goal of this research was to investigate the optimal parameter selection, the significant parameters, and the effect of the injection-molding parameters during the post-filling stage (packing pressure, packing time, mold temperature...

In this study, the stress distribution in the shrinkage process when a light-cured composite resin is irradiated with light was estimated. We assumed that shrinkage and hardening of the light-cured composite resin resulted from light irradiation and was the same as that caused thermally. On the basis of this assumption, we simulated the deformation during the shrinkage of the composite resin us...