Blog – Stress Analysis of Thin Walled Pressure Vessels

Stress Analysis of Thin Walled Pressure Vessels Call Tom O’Donnell, PE 412.835.5007 Introduction The safe design, analysis, installation, operation, and maintenance of pressure vessels are in accordance with codes such as American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel Code. Therefore, great emphasis should be placed on analytical and experimental methods for determining […]

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Blog: Failure Analysis – The Basics

Failed Wire Rope Weld Failure Failure Analysis – The Basics Call Tom O’Donnell, PE (412) 835-5007 Failure Analysis is the process of understanding materials / equipment failure. Failures happen, often despite the best efforts of designers, engineers, and fabricators. One of the first steps to take after equipment failure should be to check similar in-service

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Article on Weld Defects in Stainless Steel World

Weld Defects and Failures: Quantifying Fitness For Service – How Finite Element Mathematical Simulations can Mitigate Risk and Cut Costs Article by Dr. William J. O’Donnell, PE, President – O’Donnell Consulting Engineers Fatigue in Welded steel components is often initiated by mathematical vibration, corrosion and thermal cycling. Fitness for service analysis is the most viable

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Quantifying Fitness-For-Service – Article by Bill O’Donnell, Sr.

Fitness-for-Service analysis is the most viable step in determining the safety and financial risk factors related to component repair or replacement. This Stainless Steel World article (written by Bill O’Donnell, Sr.) shares insight about managing risk specific to weld failures. As President of O’Donnell Consulting Engineers, Inc., he began his professional career at Westinghouse Bettis

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Blog: Basics of Pressure Vessel Design & Analysis

FEA Model of Vessel at Nozzles Basics of Pressure Design & Analysis Questions? Call Tom O’Donnell, PE (412) 835-5007 Introduction Pressure vessels are precision-engineered containers designed to operate under extreme pressure and temperature conditions. They come in various shapes and sizes, adapting to diverse industry needs, including storage, chemical processes, and material transportation. Pressure vessel

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Fatigue of Welded Components

  Fatigue of Welded Components – Quantifying Fitness for Service Fatigue of welded steel components is often initiated by mechanical vibration, corrosion, and thermal cycling. Fitness-for- Service analysis determines the safety and financial risk factors related to component repair or replacement. Bill, Sr. shares insight about managing risk specific to weld failures in his article Quantifying

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BLOG: What is a Primary Stress?

What is a Primary Stress? Call Tom O’Donnell, PE (412) 835-5007 “Primary Stress” and “Secondary Stress”. What do these Terms Mean and why are they Important? “Primary Stress” is a term likely first used by the ASME Boiler and Pressure Vessel (B&PV) Code (1) Section VIII, regarding a particular type of stress to be evaluated

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Book Release – Handbook of Lessons Learned in Engineering

Bill O’Donnell, Sr., recently published “Handbook of Lessons Learned In Engineering, Design, Manufacturing and Construction.” It is intended for engineers, designers, manufacturers and constructors – depicting failures from thermal, structural, vibration, corrosion and other failure mechanisms. Read a sample of this book, Section 1 Designers’ Lessons. This book can be purchased at Amazon.com.

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Advantages of Dual Linear Array Probes for Corrosion Inspection

Advantages of Dual Linear Array Probes for Corrosion Inspection. The power generation industry is among those whose aging infrastructure contributes to increased safety concerns, and can lead to costly unscheduled maintenance and shutdowns. Facilities must be vigilant about monitoring corrosion in their in-service pipes and vessels to help ensure their integrity. Read the Power Magazine

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Don’t Let Vibrations Shake Up Operations

The reliability and integrity of equipment, structures and piping can suffer because of vibration and dynamic responses. These depend mainly on excitation forces, stiffness, mass distribution and damping. Modal analysis, which focuses on natural frequencies and associated modal shapes, provides an important tool in understanding potential issues. Indeed, usually the first step in checking for

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