Abstract. This paper discusses the technological assumptions for production of helical metal expansion joint as a new type joints used to eliminate torsional deformations industrial pipelines. The method mechanically assisted laser forming, which was manufacturing technology, presented well. Furthermore, parameters and experimental results obtained during fabrication were presented. Mainly disc...

-This paper introduces an experiment to investigate dry sliding resistance of frictional interfaces at normal pressures up to 100 MPa, slip speeds up to 10 m/s and slip distances of approximately 10 mm. This new apparatus involves a novel modification of the conventional torsional Kolsky bar apparatus, employed extensively in the past for investigating high strain rate behavior of engineering m...

Engineering structures are usually exposed to cyclic multiaxial loading and subsequently to multiaxial fatigue. Different models and criteria with various capabilities have been proposed for predicting of multiaxial fatigue life. Selection of proper model by considering material, type of loading and operation condition of each engineering structure is a challenging issue of the life prediction ...

Using the static analysis of ANSYS 19, longitudinal, radial, and tangential beam specimens spruce, Scots pine, beech were subjected to stress strain under symmetrical four-point bending asymmetrical bending. The effects wood grain on surface specimen its properties transverse longitudinal at center studied experimentally. results show that method is suitable for testing elastic modulus, Poisson...