Failure assessment was made on cylindrical pressure vessels containing longitudinal weld misalignment performing finite element analysis (FEA) utilizing the Ansys software package. A 20° section of the cylindrical shell wall was modeled utilizing the plane strain element (plane 182) with the longitudinal weld in the centre of section. The weld misalignment was introduced by shifting the position of the cylindrical section on one side of the weld relative to the other section. Failure pressure estimates from FEA based on the global plastic deformation are found to be in good agreement with existing test results on vessels made of Afnor 15CDV6 steel and maraging steels.

Please login / register to post comments

news in steel

China: Steel bloom caster modernization for greater production flexibility

Nanjing Iron and Steel Group Co., Ltd., a leading Chinese steel producer with approximately ten million tons of steel produced per annum, has awarded SMS Concast AG an order to upgrade the four strands of continuous caster CCM4 at its Nanjing plant No. 2.

Foundry components - additional know-how from Leroy-Somer

For more than fifty years the Leroy-Somer foundry has been designing and producing grey and spheroidal graphite cast-iron components in short, medium and long production runs.

Nanjing Iron and Steel upgrades electric arc furnace with injector technology from SMS group

Nanjing Iron and Steel Co., Ltd., China, has placed an order with SMS group to supply new SMS group ConSo R6 injectors for the electric arc furnace No. 3 in Luhe, Nanjing. Erection and commissioning of the equipment are scheduled for 2019.

MMK relies on PQA® for quality management across all processes

Magnitogorsk Iron & Steel Works (MMK), Russia, has placed an order with MET/Con, an SMS group company, for the implementation of the quality management system PQA® (Product Quality Analyzer).