The residual stress analysis of a thick welded structure requires a lot of time and computer memory, which are different from those in thin welded structure analysis. This study investigated the effect of residual stress due to welding-pass grouping as a way to reduce the analysis time in multipass thick butt welding joint. For this purpose, the parametric analysis which changes the number of grouping passes was conducted in the multipass butt weld of a structure with a thickness of 25 mm and 70 mm. In addition, the residual stress by thermal elastoplastic FE analysis is compared with the results by the neutron diffraction method for verifying the reliability of the FE analysis. The welding sequence is considered in order to predict the residual stress more accurately when using welding-pass grouping method. The results of the welding-pass grouping model and half model occurred between the results of the left/right of the full model. If the total number of welding-pass grouping is less than half of that of welding pass, a large difference with real residual stress is found. Therefore, the total number of the welding-pass grouping should not be reduced to more than half.
from #AlexandrosSfakianakis via Alexandros G.Sfakianakis on Inoreader http://ift.tt/2kiCksY
via IFTTT
Εγγραφή σε:
Σχόλια ανάρτησης (Atom)
Δημοφιλείς αναρτήσεις
-
Abstract Soil conditioners can be used to compensate for the insufficient soil nutrition and organic matter (OM) of arable soils. However, ...
-
Caring for Patients with Physical Disabilities: Assessment of an Innovative Spinal Cord Injury Session that Addresses an Educational Gap Des...
-
Objectives Adult sagittal posture is established during childhood and adolescence. A flattened or hypercurved spine is associated with poore...
-
ACS Nano DOI: 10.1021/acsnano.7b02058 from #AlexandrosSfakianakis via Alexandros G.Sfakianakis on Inoreader http://ift.tt/2pOv8F4 via...
-
Abstract Objective To study the effects of Astragalus polysaccharide (APS), the primary effective component of the Chinese herb medicine A...
-
Abstract The first absolute experimental bond dissociation energies (BDEs) for the main heterolytic bond cleavages of four benzylpyridiniu...
-
Abstract This article presents the development and experimental validation of a methodology to reduce the risk of thermal injury to the fa...
-
Abstract The introduction of biological agents, especially the tumor necrosis factor inhibitors (anti-TNF), for the treatment of rheumatic...
-
Related Articles Disrupted relationship between "resting state" connectivity and task-evoked activity during social percepti...
Δεν υπάρχουν σχόλια:
Δημοσίευση σχολίου