Publications related to A new hybrid Additive Manufacturing process combining Selective Laser Melting and Laser Shock Peening

Comment on "Origin of low-temperature shoulder internal friction peak of Snoek-Koster peak in a medium carbon high alloyed steel" by Lu et al. [Solid State Communications 195 (2014) 31]

We want to discuss the interpretation of low-temperature shoulder internal friction peak of Snoek-Koster peak (LTS-SK). Lu et al. (2015) [1] attributed it to the interaction between the carbon atoms and twin boundaries in martensite. Nevertheless, the decr ...

Pergamon-Elsevier Science Ltd2016

Measurements and modelling of residual stresses during quenching of thick heat treatable aluminium components in relation to their precipitation state

Nicolas Paul Henry Chobaut

In the fabrication of heat treatable aluminium parts, solutionising and quenching are key steps in order to obtain the required mechanical characteristics. Fast quenching is necessary to avoid coarse precipitation as this one reduces the mechanical propert ...

EPFL2015

New experimental determination of fatigue strength of tubular truss joints in steel grades up to S690

Alain Nussbaumer, Farshid Zamiri Akhlaghi

In this paper research work on welded butt weld connections between hot-rolled seamless tubes and steel castings are presented. Comparison is made between different weld preparations for the butt welds including different steel grades, repair methods, the ...

CRC press2015

Welding simulation of tubular K-joints in steel S690QH

Alain Nussbaumer, Jean-Marie Drezet, Farshid Zamiri Akhlaghi

Residual stress state in planar tubular K-joints, in the chord within the gap region between the two braces, is studied using numerical weld modelling. The motivation comes from past full-scale fatigue tests on tubular trusses made of various steel grades ...

CRC press2015

An empirical study on the characterization of machined surface integrity by chip morphology in dry end-milling of titanium alloy

Muhammad Arif

Titanium alloys manifest low thermal conductivity and high work hardenability in machining. These alloys are thus considered as difficult-to-machine at higher cutting speeds and pose serious problems in machining such as degraded machined surface and rapid ...

Professional Engineering Publishing2014

Full blow-up range for co-rotaional wave maps to surfaces of revolution

Can Gao

We construct blow-up solutions of the energy critical wave map equation on

\mathbb{R}^{2+1}\to \mathcal N

with polynomial blow-up rate (

t^{-1-\nu}

for blow-up at

t=0

) in the case when

\mathcal N

is a surface of revolution. Here we extend the blow-u ...

2014

Evaluation of Weld-induced Residual Stresses in S690 Steel

Katharina Rohr

The objective of this project is to analyse welding processes in high strength low-carbon steel grade S690 in numerical simulation with MORFEO codes and in experiments with a Gleeble® thermo-mechanical simulator instrument. The influence of phase transform ...

2013

Alternative stress definition and residual stress effects in fatigue design of welded tubular structures

Alain Nussbaumer, Claire Acevedo, Luís Costa Borges, Farshid Zamiri Akhlaghi

Steel tubular truss are lightweight, aesthetical and used in many different applications. These structures are sensitive to fatigue and specific verification methods have been developed for them, in particular by CIDECT [2001]. Due to assembly and welding, ...

Shaker Verlag2013

Numerical modelling and experimental investigation on welding residual stresses in large-scale tubular K-joints

Alain Nussbaumer, Jean-Marie Drezet, Claire Acevedo

This paper is devoted to the experimental and numerical assessment of residual stresses created by welding in the region surrounding the weld toe of tubular K-shaped joints (i.e. region most sensitive to fatigue cracking). Neutron-diffraction measurements ...

Wiley-Blackwell2013

Experimental study of residual stresses in thick steel plates

Jean-Paul Lebet, Raphaël Thiébaud

Residual stresses must be taken into account when evaluating the stability of a steel bridge girder. Residual stresses are unavoidable, as manufacturing processes for steel plates introduce thermal residual stresses in the material. For welded built-up sec ...

2012

A new hybrid Additive Manufacturing process combining Selective Laser Melting and Laser Shock Peening

Graph Chatbot

Chat with Graph Search

Comment on "Origin of low-temperature shoulder internal friction peak of Snoek-Koster peak in a medium carbon high alloyed steel" by Lu et al. [Solid State Communications 195 (2014) 31]

Measurements and modelling of residual stresses during quenching of thick heat treatable aluminium components in relation to their precipitation state

New experimental determination of fatigue strength of tubular truss joints in steel grades up to S690

Welding simulation of tubular K-joints in steel S690QH

An empirical study on the characterization of machined surface integrity by chip morphology in dry end-milling of titanium alloy

Full blow-up range for co-rotaional wave maps to surfaces of revolution

Evaluation of Weld-induced Residual Stresses in S690 Steel

Alternative stress definition and residual stress effects in fatigue design of welded tubular structures

Numerical modelling and experimental investigation on welding residual stresses in large-scale tubular K-joints

Experimental study of residual stresses in thick steel plates

An empirical study on the characterization of machined surface integrity by chip morphology in dry end-milling of titanium alloy

Experimental study of residual stresses in thick steel plates

Evaluation of Weld-induced Residual Stresses in S690 Steel

New experimental determination of fatigue strength of tubular truss joints in steel grades up to S690

Alternative stress definition and residual stress effects in fatigue design of welded tubular structures

Numerical modelling and experimental investigation on welding residual stresses in large-scale tubular K-joints

Measurements and modelling of residual stresses during quenching of thick heat treatable aluminium components in relation to their precipitation state

Full blow-up range for co-rotaional wave maps to surfaces of revolution

Welding simulation of tubular K-joints in steel S690QH

Comment on "Origin of low-temperature shoulder internal friction peak of Snoek-Koster peak in a medium carbon high alloyed steel" by Lu et al. [Solid State Communications 195 (2014) 31]