Mechanical & Structural Engineering Archives - Page 2 of 3

Fundamentals of Design by Analysis

May 30, 2023

Author: Phil E. Prueter, P.E., Senior Vice President of Consulting

Combining design by analysis (DBA) methods with modern computational approaches provides critical engineering tools for evaluating the structural integrity of in-service equipment and new equipment designs. To know which DBA technique to employ, it is essential to understand all possible failure modes based on equipment operation and loading scenarios. In this article, Phillip offers a high-level overview of modern DBA techniques and procedures for providing protection against plastic collapse, local failure, buckling, and cyclic failure.

A Deep Dive into Aboveground Storage Tank Settlement Evaluation

Feb 28, 2023

Authors: Katelyn J. Gustoff, Consulting Engineer I, Derek E. Slovenec, Ph.D., P.E., Senior Engineer I

Foundational settlement, particularly non-uniform settlement, poses a significant threat to the integrity and operational reliability of aboveground storage tanks. In this article, Katelyn and Derek take a detailed look into at the most common API 653 evaluation methods to provide insight into the limitations and use of the various techniques and show the potential benefit of conducting a detailed analysis for differential shell settlement and bottom edge settlement.

Buckling Evaluation of Pressure Equipment and Plant Structures

Feb 28, 2023

Authors: Derek E. Slovenec, Ph.D., P.E., Senior Engineer I, Matthew Kaiser, E.I.T., Staff Engineer I

In any industrial facility or plant, buckling poses a significant risk to nearly all components under compressive stress. Several finite element analysis (FEA) tools are used to solve complex buckling issues; however, without fully understanding the underlying mechanics and other relevant factors, the results can be misleading. In this article, Derek and Matthew review the methodology and limitations of the ASME VIII-1, ASME VIII-2, and AISC 360 standards for assessing buckling in beams, columns, steel structures, and pressure vessels.

Proactive FFS for Volumetric Damage

Jan 31, 2023

Authors: Adam Smith, P.E. and Derek Rinas, P.Eng.

Performing a proactive FFS assessment on equipment with volumetric wall loss can save both time and money during a turnaround. You can minimize inspection scope and outline a set of well-defined ‘goal posts’ for determining acceptability and identifying a targeted inspection list. In this article, the authors share multiple tips to proactively assess volumetric damage as it relates to the requirements of API 579-1/ASME FFS-1, Part 4 and Part 5.

Proactive FFS: Advantages of Brittle Fracture Screening on Piping and Vessels

Jan 31, 2023

Authors: Brian Macejko, P.E. and Stephanie Dux

Proactively conducting brittle fracture assessments on higher-risk pressure equipment and piping, even if it was built relatively recently, will help prevent unexpected failures. This article identifies the three components that drive susceptibility to brittle fracture and includes two case studies to help demonstrate the benefits of using a fracture mechanics-based approach.

Let E²G’s SMEs Train Your Future SMEs!

Jun 28, 2022

Knowing the fundamentals of industry programs, codes and standards, and technology will prepare new engineers for long-term success. At E²G, we have developed a new training course that supports knowledge transfer between industry experts and junior engineers, plus fills the gap for those companies without a formal training program. This article expands upon the June 16th webinar in which Mark Harmody introduced the curriculum for the Fundamentals of Asset Lifecycle Management course (FALCM).

Educating the Next Generation – Training SMEs

Jun 28, 2022

Authors: Mark Harmody; Joel Andreani

With baby boomers making up the largest portion of today’s workforce, it’s time to implement a corporate knowledge-sharing program. E²G has developed a training program for our engineers and clients that is devoted to mechanical integrity programs and centered around our life-cycle management philosophy. In this article, Mark Harmody discusses the curriculum and how we apply the program at E²G.

Prevention of Overfill for Atmospheric Storage Tanks

Mar 29, 2022

Author: Phillip J. Smith

The 5th edition of the ANSI/API Overfill Prevention for Storage Tanks in Petroleum Facilities was recently released. In this article, read about the recent changes to API 2350 and an 11-step procedure that you can apply at your processing facility.

Establishing Fracture Mechanics Based on Minimum Allowable Temperatures for Low-Temperature Applications of ASME B31.3

Oct 28, 2021

Authors: Seetha Ramudu Kummari, Ph.D., P.E.; Kraig S. Shipley, P.E.

Although rare, the consequences of brittle fracture are typically catastrophic, and preventing brittle fracture is essential when establishing fixed equipment life-cycle management strategies. This article discusses E²G’s proprietary Level 1 and Level 2 procedures for establishing minimum allowable temperatures (MATs) for low-temperature applications of ASME B31.3 piping.

Renewable Energy & Other Changes in Service Scenarios: Evaluating Plant Assets for Re-Use

Sep 28, 2021

Author: Joel Andreani

Read a comparison of a reuse project to FFS/SFS, addresses several repurposing questions, and explains the keys to conducting a successful conversion. In addition, be introduced to the upcoming changes to the Equity Engineering Practices (EEPs) that will deliver additional protocol documents to support safe and reliable operations.

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