BLOG: Primary Stresses

Stress and Fatigue Analysis of Bellows    What in the World is a Primary Stress? Most engineers are familiar with the terms “Normal Stress”, “Shear Stress” and potentially “Equivalent Stress”, however perhaps not so much with the terms “Primary Stress” and “Secondary Stress”. What do these terms mean and why are they important? “Primary Stress” …

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See Updates to OCE Portfolio Page

Check out our Portfolio Page of projects – we are continually adding to it. Above is a model for a base skid containing a Vapor Recovery Unit that we performed a structural analysis.

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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Links Page Updated

We have updated our Links Page which lists of professional societies, engineering books and resources, and as well as other links of interest.

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.

Small Modular Reactors Gain Momentum in Europe

GE Hitachi Nuclear Energy (GEH) and NuScale Power, two leading companies in the race to build small modular reactors (SMRs) for power generation, have recently announced deals that could result to new plants being constructed in Europe. See the Power Magazine article.

See our Contact Page to Submit an Inquiry

We provide engineering design, analysis and troubleshooting services to the Petrochemical, Mining, Materials, Transportation, Aerospace, Power and other industries. See our Contact Page to Submit an Inquiry.

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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IEA World Energy Outlook 2019

IEA World Energy Outlook 2019. Solar photovoltaic (PV) could surge ahead of coal and gas and become the largest source of installed power capacity in the world by 2035 if countries pursue stated policies and targets, the International Energy Agency (IEA) said in its newly released World Energy Outlook 2019 (WEO2019). See the Power Magazine …

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