Articles by Dr. David Kirk

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Total articles (110)

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  • Principles of Spiral Gravity Classification
  • Year: 2006, Source: The Shot Peener magazine, Volume 20 / Issue 4, Fall 2006
  • INTRODUCTION Gravity separation of shot particles is of fundamental importance for peening. From a commercial viewpoint it is the basis of several methods for separating acceptable from unacceptable s...

  • Ductility and Strength Properties of Shot Peened Surfaces
  • Year: 2006, Source: The Shot Peener magazine, Vol 20 / Issue 2, Spring 2006
  • INTRODUCTION It is an apparent paradox that peening, which requires a large degree of ductility, can readily be applied to high-strength, low ductility, engineering components. A single indentation ma...

  • Accuracy of computerized saturation curve analysis
  • Year: 2006, Source: The Shot Peener magazine, Vol 20 / Issue 1, Winter 2006
  • INTRODUCTION Accuracy has two components: precision and bias. Attention has to be paid to both components if we are to achieve high levels of accuracy. Imagine that we have a digital thermometer, sens...

  • Saturation Curve Analysis and Quality Control
  • Year: 2006, Source: The Shot Peener magazine, Vol 20 / Issue 3, Summer 2006
  • Dr. David Kirk, our "Shot Peening Academic", is a regular contributor to The Shot Peener. Since his retirement, Dr. Kirk has been an Honorary Research Fellow at Coventry University, U.K. and is now a ...

  • Computer-Based Saturation Curve Analysis
  • Year: 2005, Source: The Shot Peener magazine, Vol 19 / Issue 4, Fall 2005
  • INTRODUCTION Computer-based curve-fitting procedures are now almost universally available. They offer several advantages over manual procedures. Apart from greater speed of execution, they are objecti...

  • Effects of Varying Shot Impact Angle
  • Year: 2005, Source: The Shot Peener magazine, Vol 19 / Issue 3, Summer 2005
  • INTRODUCTION It is commonly assumed that Almen saturation intensity, Io, varies directly as the sine of the shot impact angle, 0. Hence, Io = I90.sin01.0 where I90 is the intensity for 90...

  • X-Ray Residual Stress Measurements of Shot Peened Components
  • Year: 2005, Source: The Shot Peener magazine, Vol 19 / Issue 1, Winter 2005
  • INTRODUCTION It is a paradox that we cannot measure residual stresses directly. Measurements of strain can be made, which are then converted into stress using available elastic constant values. This p...

  • Theoretical Principles of Shot Peening Coverage
  • Year: 2005, Source: The Shot Peener magazine, Vol 19 / Issue 2, Spring 2005
  • INTRODUCTION Coverage is arguably the most important variable in shot peening. It is defined as the percentage area of a surface that has been impacted. This paper examines the major factors that infl...

  • Relationship Between Coverage and Surface Residual Stress
  • Year: 2005, Source: Conf Proc: ICSP-9 (pg 373-378)
  • ABSTRACT Controlled, uniform, peening has been used to impose precise coverage percentages onto mild steel plate specimens. This was achieved by using an X-Y table to move the specimens under a singl...

  • Evolution of Shot Peening Experimental Techniques
  • Year: 2005, Source: Conf Proc: ICSP-9 (pg 346-353)
  • ABSTRACT A wide variety of experimental techniques have evolved which greatly enhance our knowledge and understanding of the shot peening process. Four technique categories are discussed relating to ...

  • Effects of Indent Ratio on Curvature and Deformation of Sheet and Strip
  • Year: 2004, Source: The Shot Peener magazine, Vol 18 / Issue 1, Winter 2004
  • INTRODUCTION Indent ratio in shot peening is the ratio of the indentation diameter, d, to the component thickness, T, see fig. 1. When the indent ratio is small, we get convex curvature of sheet and s...

  • Prediction and Control of Indent Diameter
  • Year: 2004, Source: The Shot Peener magazine, Vol 18 / Issue 2, Spring 2004
  • INTRODUCTION Shot peening control is based on satisfying two specified parameters - PEENING INTENSITY and COVERAGE. Peening intensity is independent of the component's properties, being defined by the...

  • Actual and Predicted Shot Peening Indentations
  • Year: 2004, Source: The Shot Peener magazine, Vol 18 / Issue 3, Summer 2004
  • INTRODUCTION Shot peening involves the covering of components with indentations. Those indentations induce a surface layer of compressive residual stress that enhances component properties. Two parame...

  • Residual Stresses in Shot Peened Components
  • Year: 2004, Source: The Shot Peener magazine, Vol 18 / Issue 4, Fall 2004
  • INTRODUCTION Shot peening of components produces a 'magic skin' containing compressive residual macrostress. This skin has a thickness that is largely determined by the size of the shot particles that...

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David Kirk

Born into a multi-generational steelworking family — his grandfather was a Head Roller and his father was an Open-Hearth steelmaker and also a part-time lecturer at Rotherham Technical College — David won a scholarship to a local grammar school. Grammar school success secured three scholarships that took him to Birmingham University to read Industrial Metallurgy. He was the first member of his family to attend university. After graduation, a Department of Science scholarship allowed research that finished with a doctorate for a thesis entitled "The Hot Working of Metals."

First employment as a Research Fellow at Birmingham University was followed by a short period as a Senior Research Metallurgist at the International Nickel Company's Research Laboratory in Birmingham. David then joined Coventry University as a Senior Lecturer in Metallurgy. At Coventry University, he was promoted to Principal Lecturer in Metallurgy and then Chairman of the School of Materials. Initial research activity centered on X-ray residual stress measurement which prompted him to establish Coventry Science Consultants Ltd. This was followed by his installation of a shot-peening research laboratory at the University with active encouragement and advice by the late Jack Plaster.

Upon retirement, David was first appointed as a Visiting Research Fellow and is now Visiting Professor of Materials at Coventry University. David has, after retirement, published some 70 research papers and articles on shot peening and residual stresses. Following his organization of the International Conference on Shot Peening in Oxford, he was elected Chairman of the International Scientific Committee for Shot Peening and he was subsequently elected to be a Life member. David was awarded The Shot Peener of the Year award in 2001 for his significant contributions to the advancement of shot peening.

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