Investigating and Understanding the Fatigue Response and Failure of Built‐Up Welded Beams of a Titanium Alloy

Patnaik, Anil; Poondla, Narendra; Bathini, Udaykar; Srivatsan, T. S.; Quick, T.

doi:10.1002/9781118013373.ch13

Fatigue of Materials 2010

DOI: 10.1002/9781118013373.ch13

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Investigating and Understanding the Fatigue Response and Failure of Built‐Up Welded Beams of a Titanium Alloy

Anil Patnaik

Narendra Poondla

Udaykar Bathini

et al.

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Cited by 4 publications

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The Fatigue Behavior of Built-Up Welded Beams of Commercially Pure Titanium

Patnaik

Poondla

Bathini

et al. 2010

J. of Materi Eng and Perform

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In this article, the results of a recent study aimed at evaluating, understanding, and rationalizing the extrinsic influence of fatigue loading on the response characteristics of built-up welded beams made from commercially pure titanium (Grade 2) are presented and discussed. The beams were made from welding plates and sheets of titanium using the pulsed gas metal arc welding technique to form a structural beam having an I-shaped cross section. The welds made for the test beams of the chosen metal were fillet welds using a matching titanium filler metal wire. The maximum and minimum load values at which the built-up beams were cyclically deformed were chosen to be within the range of 22-45% of the maximum predicted flexural static load. The beams were deformed in fatigue at a stress ratio of 0.1 and constant frequency of 5 Hz. The influence of the ratio of maximum load with respect to the ultimate failure load on fatigue performance, quantified in terms of fatigue life, was examined. The percentage of maximum load to ultimate load that resulted in run-out of one million cycles was established. The overall fracture behavior of the failed beam sample was characterized by scanning electron microscopy observations to establish the conjoint influence of load severity, intrinsic microstructural effects, and intrinsic fracture surface features in governing failure by fracture.

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The Fatigue Behavior of Built-Up Welded Beams of Commercially Pure Titanium

Patnaik

Poondla

Bathini

et al. 2010

J. of Materi Eng and Perform

Self Cite

View full text Add to dashboard Cite

show abstract

Fatigue of titanium weldments: S-N testing and analysis for data transferability among different joint types

Xing

Dong

2017

Marine Structures

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Understanding the mechanical response of built-up welded beams made from commercially pure titanium and a titanium alloy

Patnaik¹,

Poondla²,

Menzemer³

et al. 2014

Materials Science and Engineering: A

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Investigating and Understanding the Fatigue Response and Failure of Built‐Up Welded Beams of a Titanium Alloy

Cited by 4 publications

References 18 publications

The Fatigue Behavior of Built-Up Welded Beams of Commercially Pure Titanium

The Fatigue Behavior of Built-Up Welded Beams of Commercially Pure Titanium

Fatigue of titanium weldments: S-N testing and analysis for data transferability among different joint types

Understanding the mechanical response of built-up welded beams made from commercially pure titanium and a titanium alloy

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