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Publications associées (141)
New parametric equations to estimate notch stress concentration factors at butt welded joints modeling the weld profile with splines
Anton Schleiss, Pedro Filipe De Almeida Manso, Alexandre Jean Pachoud
For fatigue life estimation as well as for fatigue testing analysis of welded structures by local stresses approaches, the stress concentration factor (SCF) at the weld must be known. Full penetration butt welded joints are extensively used in steel struct ...
Elsevier2016Robotic Assistance by Impedance Compensation for Hand Movements While Manual Welding
Aude Billard, Mustafa Suphi Erden
In this paper, we present a robotic assistance scheme which allows for impedance compensation with stiffness, damping, and mass parameters for hand manipulation tasks and we apply it to manual welding. The impedance compensation does not assume a preprogra ...
Institute of Electrical and Electronics Engineers2016Proposed modeling approach of welding procedures for heavy steel plates
A numerical modeling approach is proposed to assess the effectiveness of automatic submerged arc welding procedures for steel plates with thickness larger than 50 mm. The scope of study includes partial joint penetration butt welds, their numerical analysi ...
Elsevier2016Ultra low cycle fatigue of welded steel joints under multiaxial loading
Alain Nussbaumer, Albano António De Abreu E Presa De Castro E Sousa
Ultra low cycle fatigue (ULCF) is a phenomenon that can be summarily defined as the deterioration of material properties under high amplitude cyclic loading, under which failure is reached typically within ten to twenty cycles. This phenomenon is observed ...
CRC Press/Balkema2016Early-stage oxidation behavior at high temperatures of SiSiC cellular architectures in a porous burner
Sophia Haussener, Ehsan Rezaei, Alberto Ortona
Early stage oxidation behavior of SiSiC cellular lattices with different cell types was studied at 1400 degrees C in two different environments: a porous burner and an electric furnace with stagnant air. Oxidation and silicon alloy bead formation were obse ...
Elsevier2016CO2 evasion from a steep, high gradient stream network: importance of seasonal and diurnal variation in aquatic pCO2 and gas transfer
Tom Ian Battin, Amber Joy Ulseth
Surface waters contribute substantially to carbon dioxide (CO2) emissions to the atmosphere. However, global estimates remain uncertain due to methodological difficulties, such as in precisely estimating gas transfer in steep upland streams. Here, we addre ...
American Society of Limnology and Oceanography2016A new laboratory methodology for optimization of mixture design of asphalt concrete containing reclaimed asphalt pavement material
André-Gilles Dumont, Sara Bressi, Manfred Partl
The reduction of virgin bitumen added to asphalt mixtures containing Reclaimed Asphalt Pavement (RAP) is based on the typical assumption that all the aged binder function in the same way as the virgin binder. However, recent studies conducted by the author ...
Springer Verlag2016Anchor Losses Dependence on Electrode Material in Contour Mode Resonators
Luis Guillermo Villanueva Torrijo, Andrea Lozzi
We here present a study on the influence of metal electrodes on the anchor losses in Contour Mode Resonators (CMRs). Our Finite Element Modelling (FEM) simulation results show that electrode material is key to determine the acoustic losses, and therefore t ...
Ieee2016Extensive characterisation of advanced manufacturing solutions for the ITER Central Solenoid pre-compression system
The ITER Central Solenoid (CS), positioned in the center of the ITER tokamak, will provide a magnetic field, contributing to the confinement of the plasma. The 13 m high CS consists of a vertical stack of 6 independently driven modules, dynamically activat ...
Elsevier Science Sa2015Calibration of partial safety factors for fatigue design of steel bridges
Alain Nussbaumer, Luca D'Angelo
The aim of this paper is to propose a new framework for assessment of fatigue partial safety factors with focus on steel bridges welded joints. Fatigue resistance S-N curves for constant amplitude (CA) and variable amplitude (VA) loadings are defined using ...
2015