Technical Library

The Advanced VSR Technical Library contains a selection of the most fundamental, pioneering work in the field.   Most works were published originally by engineering societies and were often presented at symposiums or conferences.   A few select works were direct submissions by the authors (typically university researchers) to the Technical Library.    Brief summaries of the works focus and importance are shown as a guide.

EXPERIMENTS IN STRESS RELIEVING CASTINGS AND WELDED STRUCTURES BY VIBRATION is the oldest (1943) research paper on vibratory stress relief.

EXPERIMENTS IN STRESS RELIEVING CASTINGS AND WELDED STRUCTURES BY VIBRATION is the oldest (1943) research paper on vibratory stress relief.

EXPERIMENTS IN STRESS RELIEVING CASTINGS AND WELDED STRUCTURES BY VIBRATION is the oldest (1943) research paper on vibratory stress relief.

VIBRATORY STRESS RELIEF:  METHODS USED TO MONITOR AND DOCUMENT EFFECTIVE TREATMENT describes changes in response to vibration that occur due to stress relief, includes photos of workpieces, and a table of applications by industry.   Also data showing a connection between peak growth and peak shifting is included. 

VIBRATORY STRESS RELIEF: A Fundamental Study of Its Effectiveness (1980) showed that 90% of stresses can be relieved by resonant vibration. 

FINITE ELEMENT MODELING OF VIBRATION STRESS RELIEF AFTER WELDING showed that  both resonant and non-resonant vibration can relieve stress, but resonant vibration can do so using lower, more easily achievable amplitudes. 

THE INFLUENCE OF VIBRATORY TREATMENT ON THE FATIGUE LIFE OF WELDS:  A comparison with Thermal Stress Relief shows that vibratory treatment can extend the fatigue life of welded structures in a manner similar, at times exceeding, that produced by thermal treatment.

 

 

   Vibratory Residual Stress Relief and Modifications in Metals to Conserve Resources and Prevent Pollution    compares the effectiveness of resonant and non-resonant vibration to relieve stress.

Vibratory Stress Relief of Mild Steel Weldments is the definative study comparing resonant and non-resonant (sub-resonant) vibratory stress relief methods.     Quoting from the abstract:

                            

"The resonant frequency vibration had a more pronounced stress

redistribution as compared to the sub-resonant frequency vibration."     

A Progress Report on the Use and Understanding of Vibratory Stress Relief is the first paper showing a VSR Chart. 

 

See page 7, Figure 2.

Assessment of Structural Integrity of Titanium Weldments for U.S. Navy Applications discusses the fatigue properties of titanium alloys, and how they can potentially degrade due to PWHT.