Assessment of Residual Stresses and Distortion in Stainless Steel Weld Joints

Vasantharaja, P.; Maduarimuthu, V.; Vasudevan, M.; Palanichamy, P.

doi:10.1080/10426914.2012.663135

Cited by 66 publications

(24 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It should be noted that for structural stress analysis, the effect of residual stresses could not be taken into account. Equation (17) describes the local effective stress ratio for effective notch stresses additionally including residual stresses at this point. The values are taken from the measurements in Table 2, whereby the highest value of each distortion state is selected as a conservative approach.…”

Section: Effective Stress Ratiomentioning

confidence: 99%

Impact of Angular Distortion on the Fatigue Performance of High-Strength Steel T-Joints in as-Welded and High Frequency Mechanical Impact-Treated Condition

Ottersböck

Leitner

Stoschka

2018

Metals

View full text Add to dashboard Cite

In general, distortion has significant effects on the assembly process of welded structures and remarkable influences on the strength of the welds. Therefore, this work focuses on the effect of angular welding distortion on fatigue strength to improve transferability of specimen results to components. Experimental investigations cover manufacturing and fatigue testing of three single-sided transversal stiffeners series exhibiting different angular distortions. The fatigue test results of as-welded specimen show a distinct link between fatigue performance and initial angular distortion. However, in case of a high frequency mechanical impact (HFMI)-treated weld toe, the fatigue strength increases up to base material level and is independent of the distortion. A comprehensive numerical analysis reveals a complex interaction between the applied nominal load, initial specimen distortion and the local stress field. In this context, an engineering-feasible assessment is derived to estimate the local effective stresses featuring the acting local stress range as well as the stress ratio. The application of this distortion factor enables the setup of a uniform S/N-curve with a significantly reduced scatter band.

show abstract

Section: Effective Stress Ratiomentioning

confidence: 99%

Impact of Angular Distortion on the Fatigue Performance of High-Strength Steel T-Joints in as-Welded and High Frequency Mechanical Impact-Treated Condition

Ottersböck

Leitner

Stoschka

2018

Metals

View full text Add to dashboard Cite

show abstract

“…The thickness of stainless steel material that can be welded in a single pass is limited to 3 mm using argon as shielding gas. 5,6 A novel variant of the TIG welding process is the activated flux or activated tungsten inert gas (A-TIG) welding process which overcomes the limitations of TIG welding process. Many researchers have studied the A-TIG welding of austenitic and duplex stainless steel materials.…”

Section: Introductionmentioning

confidence: 99%

Optimization of activated tungsten inert gas welding of super duplex alloy 2507 based on experimental results

Korra

Balasubramanian

Vasudevan

2014

Proceedings of the Institution of Mechanical Engineers, Part B:

View full text Add to dashboard Cite

In this work, the effect of activated tungsten inert gas welding process parameters on the depth of penetration of super duplex stainless steel alloy 2507 has been analyzed using response surface methodology. The design matrix for conducting the experiments was generated using the central composite rotatable design of response surface methodology of design of experiments. The input process parameters like current, torch speed and arc gap were varied at five levels. Based on the generated design matrix, bead-on-plate welds were made on 10-mm-hick super duplex stainless steel plate. The depth of penetration, which is the response in the present analysis, was measured on the samples. A second-order response surface model was developed. Then, response optimization was performed for obtaining the maximum depth of penetration using desirability approach. The validation of the model showed good agreement between the predicted and actual values of depth of penetration.

show abstract

“…A.G. Kamble has investigated the influence of welding input parameters on weld bead geometry, microstructure and mechanical properties for GMAW process and in his study includes the numerical model to understand the temperature distribution in transient condition and residual stress in the AISI321 steel using simulation package [14]. Vasantharaja has discussed residual stress and distortion for multipass TIG process and A-TIG welding process for 316LN thick plates [15]. The residual stresses reported for Tso-Liang Teng using FEA carries out steel plate with single-pass in arc welding process, this study includes the effect of travel speed in the weldment [16].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of residual stresses in multipass dissimilar butt-welded of SS316L to Inconel625 using FEA

Vemanaboina

Gundabattini²,

Akella³

2018

IJET

View full text Add to dashboard Cite

In the present analysis, thermo-mechanical process was employed to study the thermal and structural behaviour of three pass dissimilar butt-joints of SS316L to Inconel625 alloys. The temperatures evolution and residual stresses developed in the weldments were reported for each pass in the transverse direction to fusion zone. The Ansys Parametric Design Language (APDL) used for modelling and analysis of welding process with the double ellipsoidal heat source. The temperature dependent thermal and mechanical properties used in the simulation process. The residual stress is compressive in SS316L side compared to Inconel 625. The residual stress is within the yield limits of both base materials. The results obtained from the simulation process will be helpful for maintaining the structural integrity.

show abstract

Assessment of Residual Stresses and Distortion in Stainless Steel Weld Joints

Cited by 66 publications

References 12 publications

Impact of Angular Distortion on the Fatigue Performance of High-Strength Steel T-Joints in as-Welded and High Frequency Mechanical Impact-Treated Condition

Impact of Angular Distortion on the Fatigue Performance of High-Strength Steel T-Joints in as-Welded and High Frequency Mechanical Impact-Treated Condition

Optimization of activated tungsten inert gas welding of super duplex alloy 2507 based on experimental results

Evaluation of residual stresses in multipass dissimilar butt-welded of SS316L to Inconel625 using FEA

Contact Info

Product

Resources

About