Dynamics of bending of NaCl whisker is studied with use of high speed camera VFU-1 synchronized with high power electron accelerator GIN-600. The dynamics of bending turns to be non-monotonous and quite complicated. The figures of etching of whisker after bombardment by electron beam are analysed, thin polygonization in samples is found. The time of bending in experiment and time of forming of ...

one of the most prominent industries is bending, while using rotary draw bending method is known to be the most conventional approach for thin wall tube bending. pressure die is one effective tool which boosts the tube during the process and eventually improves the bending quality. other effective parameters are mandrel and the amount of clearance between tube and mandrel. in the present study,...

The joints between segmental rings can withstand a certain amount of bending moment as well as axial and shear forces. Generally, in the structural analysis of tunnel segmental lining, the joints can be modeled as elastic hinges or rotational springs, and their rigidity should be demonstrated in terms of the rigidity of the joints or their rotational stiffness. Therefore, the bending moment act...

Photodissociation studies using ion imaging are reported, measuring the coherence of the polarization of the S((1)D(2)) fragment from the photolysis of single-quantum state-selected carbonyl sulfide (OCS) at 223 and 230 nm. A hexapole state-selector focuses a molecular beam of OCS parent molecules in the ground state (nu2=0mid R:JM=10) or in the first excited bending state (nu2=1mid R:JlM=111)....

The stability of structures is an important aspect that the designer must pay particular attention to in order ensure safety against collapse. This investigation concerned with analytical and numerical analyses dynamic buckling plane structures. A rigorous mechanical model proposed, consisting a beam-column element nodal ends possessing two rotational springs rigidities acting parallel bending ...

Tailor-made blanks are sheet metal assemblies with different thicknesses and/or materials and/or surface coatings. A monolithic sheet can be machined to make the required thickness variations that is referred as tailor machined blanks. Due to the thickness variation in tailor machined blanks, laser bending of these blanks is more complicated than monolithic plates. In this article, laser formin...

Membrane actions commonly exist in reinforced concrete (RC) elements under flexural deformation, which could significantly increase the ultimate load-bearing capacity and potentially influence damage mode of RC element. Most design codes only treat membrane as a “hidden” safety factor without considering its on resistance functions failure modes. In this paper, an experimental investigation is ...

This work aims to propose a new damaging beam-lattice model using the Discrete Element Method paradigm dedicated simulation of quasi-brittle fracture under complex loadings. Enrichment elastic Euler–Bernoulli beam link, inspired by cohesive zone models, is proposed provide damageable behavior in mixed mode and contribution frictional not considered this first version damage model. The tensile o...