Advanced visual sensing and control in CMT-based WAAM processes by Rui Yu, Wenhang Li, Mingfang Wu, Jianxin Wang, Qinglin Han, Jiayou Wang, Siyu Bing

“…By constructing a CMT-based WAAM monitoring system, high reliability and quality control of the manufacturing process and weld formation have been achieved.…”
Get full text

RESEARCH ON FATIGUE TEST METHOD OF CAR BODY OF HIGH-SPEED EMU by WANG Chao, LIU ChaoTao, WU PingBo, SONG Ye, LI FanSong, ZHANG FuBing

“…Fatigue test found that the weld hook inside the ribbed plate weld existed hidden dangers of fatigue and put forward an optimized program. …”
Get full text

Detection of Rail Defects Using Phased Array Ultrasonic Technique by Phrommahakul Nichapa, Kongpuang Manwika, Sani Suhaidee, Katib Anas, Sulong Fittriya

“…Rail steel grade 900A/ R260, Hadfield steel, and thermite welded joints. No defects were found during the inspection at the crossing nose of the two positions. …”
Get full text

Strength of Flanged and Plain Cruciform Members by Nicholas Harris, Girum Urgessa

“…Flanged cruciform sections are typically fabricated from two hot-rolled WT sections welded to the web of a standard hot-rolled I section, whereas plain cruciform sections are typically fabricated from two symmetric rectangular plates welded in the form of a cross. …”
Get full text

Variation in the Permeability of Intact and Fractured Rocks due to Transient Disturbances in Axial Stress or Pore Pressure by Sophea Boeut, Teppei Oshima, Yoshiaki Fujii, Jun-ichi Kodama, Daisuke Fukuda, Hiroyuki Matsumoto, Kazumi Uchida, Anjula B. N. Dassanayake

“…In this study, the permeability values of intact and triaxially fractured Kushiro Cretaceous sandstone and Shikotsu welded tuff were measured before and after transient axial stress or pore pressure disturbances to clarify the effects of transient stress disturbances on rock permeability. …”
Get full text

FINITE ELEMENT ANALYSIS OF A LARGE FIXED TUBESHEET HEAT EXCHANGER BASED ON SUB-MODEL TECHNIQUE by LIU Bin, LIU XianPing, DONG JunHua, GAO BingJun

“…In the sub model, detailed connecting structure of the tube and the tubesheet are included, such as the weld metal and contact condition between the tube and tubesheet hole. …”
Get full text

Evaluating Human Factors in TFM Sizing Accuracy: Statistical Findings from a Round-Robin Programme (Part 2) by Mariana Burrowes M. Guimarães, Edward Ginzel, Gabriela Ribeiro Pereira, Cesar Giron Camerini, Cesar Giron Camerini

“…To address the human factors, a second part to the programme was organised whereby welds with seeded flaws were provided to volunteers from several labs. …”
Get full text

Strengthening of Steel Columns under Load: Torsional-Flexural Buckling by Martin Vild, Miroslav Bajer

“…The paper presents experimental and numerical research into the strengthening of steel columns under load using welded plates. So far, the experimental research in this field has been limited mostly to flexural buckling of columns and the preload had low effect on the column load resistance. …”
Get full text

Analysis of Flexural Buckling Capacity of Stainless Steel Columns under Axial Compression by Yong Liang, Gapi Shu, Shaohua Li

“…According to the collected test data of square tube, rectangular tube, circular tube, elliptical tube, welded H-shaped steel, and cold-formed C-shaped steel for 199 section columns and according to the influence of cold-formed effect and residual stress on the stability of axial compression members, the members are divided into three categories: A, B, and C according to the section form, in which the columns with cold-formed square, rectangular hollow section, and lipped C-section were included in A, columns with circular and oval hollow section were sorted into B, columns with welded H-section were separated into C, and the three categories of axial compression stability curves are expressed in the form of Perry formula. …”
Get full text

Generalised fracture mechanics approach to the interfacial failure analysis of a bonded steel-concrete joint by Wouter De Corte, Peter Helincks, Veerle Boel, Jan Klusak, Stanislav Seitl, Geert De Schutter

“…Steel-concrete joints are often made by welded shear studs. However, this connection reduces the fatigue strength, especially in situations where locally concentrated loads occur with a large number of load cycles e.g. in bridge decks. …”
Get full text

Failure Analysis of Corrosion-Induced Perforation in B10 Copper-Nickel Alloy Pipelines by SONG Shuai, QIN Limin, SUN Yujiang, ZHANG Shangfeng, YANG Wenming, HE Yueyang, XU Zhigang

“…The B10 copper-nickel alloy pipeline used for seawater transportation on a certain platform was found to have corrosion perforation at the weld joint between the elbow and the flange during a shutdown inspection.In this study， the failure mechanism of corrosion perforation was analyzed using macroscopic morphology observation，scanning electron microscopy (SEM)，energy-dispersive spectroscopy (EDS)，X-ray diffraction (XRD) and metallographic examination.Results showed that “sugar cube”-like intergranular corrosion morphologies were commonly observed at the bottom of corrosion pits on the flange， in erosion-wear areas， corrosion grooves， perforated regions and at the bottom of corrosion pits on the elbow.Locally， a “stepped” exfoliation morphology was observed， where grains were progressively stripped layer by layer.The preferentially corroded grain boundaries formed a circuit， and the surrounded grains were selectively denickelized and dissolved， resulting in grain spalling.The reduced hardness and coarse columnar grain structure of the flange further decreased the material’s corrosion resistance.The corrosion perforation of the copper-nickel alloy pipeline occurred in the erosion-sensitive zones and the weld heat-affected zones with the poorest corrosion resistance.This failure was the result of the synergistic effects of erosion wear， intergranular corrosion and selective dealloying.Enhanced corrosion monitoring is recommended for similar locations in service pipelines.…”
Get full text

Hydrogen technologies in foundry and metallurgy: current state and perspectives (review) by M. V. Goltsova

“…THP allows plasticizing titanium alloys, increasing their antifriction properties. In welded joints of titanium alloys, the THP equalizes the plasticity of the welded joint and the base metal, increases the cyclic life of the products by 2–2.5 times. …”
Get full text

Using the “One Shot” Concept for Immediate Loading Implant Protocol in Edentulous Patient Rehabilitation with a Fixed Prosthesis: A 6-Year Follow-Up by Philippe Bousquet, Delphine Carayon, Jean-Cedric Durand

“…After surgical placement of implant fixtures, an interim prosthesis was fabricated using a laser-welded definitive titanium framework. The prosthesis was fitted intraorally following the immediate loading protocols. …”
Get full text

Transverse strength of railway tracks: part 3. Multiple scenarios test field by Antonio De Iorio, Marzio Grasso, Francesco Penta, Giovanni Pio Pucillo, Vincenzo Rosiello, Stefano Lisi, Stefano Rossi, Mario Testa

“…In the present paper the design and construction choices of a test field for the ballast lateral resistance measurement, in order to produce data useful for the development of a numerical model able to simulate the service critical conditions of a continuous welded rail track, are described. Some construction details described herein allow to better understand the methodological approach followed in the design of experiments, the tests management philosophy as well as of the accuracy achieved in their implementation.…”
Get full text

Transverse strength of railway tracks: part 3. Multiple scenarios test field by Antonio De Iorio, Francesco Penta, Giovanni Pio Pucillo, Vincenzo Rosiello, Stefano Lisi, Stefano Rossi, Mario Testa

“…In the present paper the design and construction choices of a test field for the ballast lateral resistance measurement, in order to produce data useful for the development of a numerical model able to simulate the service critical conditions of a continuous welded rail track, are described. Some construction details described herein allow to better understand the methodological approach followed in the design of experiments, the tests management philosophy as well as of the accuracy achieved in their implementation.…”
Get full text

FAILURE ANALYSIS AND IMPROVEMENT OF AN SUPPORT FRAME FOR INDEPENDENT SUSPENSION by YAN HuiDong, LI HongBiao

“…The frame was damaged after vehicle enhance road test with the weld seam cracked and the bolt cut off. According to the failure performance,the model about independent suspension included support frame was built for failure analysis,and the failure was caused by uncoordinated deformation of different parts; the support frame is improved and verified by simulation and test.…”
Get full text

Alloying working surface during electroslag surfacing by V. G. Komkov, S. A. Gubar, G. G. Voskresensky

“…The use of ready-made alloying powders in surfacing increases the cost of the finished part, which necessitates the search for cheaper materials for alloying the parts being welded. The study of the efficiency of alloying the deposited metal through the melted insert, as well as by direct introduction of alloying powders into the slag bath has been carried out. …”
Get full text

Analisis Perbandingan Simulasi Injeksi Plastik Terhadap Hasil Produk Dalam Software Autodesk Moldflow Pada Produk Air Filter by Zacky Fahd Mustafa, Oleh, Iwan Nugraha Gusniar

“…These production defects include short shots, flash, flowmarks, weld lines, and bubbles. In the production results, defects were found that had been predicted by previous simulations. …”
Get full text

Strain capacity assessment of API X65 steel using damage mechanics by Gabriel Testa, Nicola Bonora, Domenico Gentile, Andrew Ruggiero, Gianluca Iannitti, Antonio Carlucci, Yazid Madi

“…Strain-based design for offshore pipeline requires a considerable experimental work aimed to determine the material fracture toughness and the effective strain capacity of pipe and welds. Continuum damage mechanics can be used to limit the experimental effort and to perform most of the assessment analysis and evaluation in a simulation environment. …”
Get full text

Strain capacity assessment of API X65 steel using damage mechanics by G. Testa, N. Bonora, D. Gentile, A. Ruggiero, G. Iannitti, A. Carlucci, Y. Madi

“…Strain-based design for offshore pipeline requires a considerable experimental work aimed to determine the material fracture toughness and the effective strain capacity of pipe and welds. Continuum damage mechanics can be used to limit the experimental effort and to perform most of the assessment analysis and evaluation in a simulation environment. …”
Get full text