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Understanding Damage Mechanism Review (DMR) and its Role in Asset Integrity


In various industries like oil and gas, chemical, and petrochemical, ensuring the integrity and reliability of equipment and assets is of utmost importance to prevent unexpected failures, downtime, and safety risks. Companies undertake a vital Damage Mechanism Review (DMR) process to address these concerns. In this blog, we will delve into the critical aspects of DMR, its objectives, the steps involved, and the DMR Report’s significance in managing potential damage mechanisms and maintaining asset integrity.

What is Damage Mechanism Review (DMR)?

Damage Mechanism Review is a systematic and proactive evaluation process used to identify, understand, and manage potential damage mechanisms that can affect industrial equipment and structures. The process aims to assess the risks associated with these damage mechanisms and develop appropriate strategies to minimize or manage them effectively.

The Key Steps in a Damage Mechanism Review:

  1. Data Collection: The first step in DMR involves gathering comprehensive information about the equipment or assets under consideration. This includes data on operating conditions, process fluids, historical inspection records, maintenance logs, and past incidents of damage or failures.
  2. Damage Mechanism Identification: Based on the collected data, the DMR team identifies all potential damage mechanisms to which the equipment may be susceptible. These damage mechanisms can include corrosion, erosion, fatigue, cracking (e.g., stress corrosion cracking, hydrogen-induced cracking), and other forms of material degradation.
  3. Damage Mechanism Assessment: Each identified damage mechanism is assessed for its likelihood and severity under specific operating conditions. This assessment helps prioritize the mechanisms based on their potential impact on equipment integrity.
  4. Risk Analysis: The likelihood and severity assessments are combined to determine the overall risk associated with each damage mechanism. This helps in setting appropriate inspection and maintenance intervals.
  5. Mitigation Measures: Strategies are developed to manage or mitigate the identified damage mechanisms. These measures may include material selection, chemical treatment, monitoring and inspection techniques, maintenance procedures, and operational changes.
  6. Inspection Planning: An inspection plan is created based on risk analysis and mitigation strategies. The plan outlines the inspection methods, frequency, and locations to effectively monitor and detect any damage or degradation.

The Significance of the DMR Report:

The culmination of the Damage Mechanism Review process is the creation of a comprehensive DMR Report. This report is a valuable reference and decision-making tool for asset integrity management. The DMR Report typically contains the following key elements:

  1. High-level summary of significant process areas: The report provides an overview of the primary process areas within the facility and highlights critical equipment and systems subjected to the DMR process.
  2. Completed DMR Collection Template: This template contains all the data and information gathered during the data collection phase, forming the foundation of the entire review.
  3. Identified damage mechanism numbers and technical descriptions: The report lists the identified damage mechanisms with references from industry standards like API 571 and RMS-2100-TR-02, along with technical descriptions of each mechanism.
  4. Inspection and test methods: The report outlines the recommended inspection and test methods for each identified corrosion and damage mechanism to aid detection and monitoring.
  5. Considerations and recommendations: The report includes considerations and recommendations based on the risk analysis. This may encompass upgrading materials of construction, updating inspection/test plans, or improving process safeguards and controls.
  6. Names and roles of DMR participants: To ensure transparency and accountability, the report lists the names and roles of all the participants involved in the DMR process.
  7. Corrosion Materials Diagram (CMD): The CMD provides a visual representation of materials used in the facility, their locations, and potential exposure to damage mechanisms.


In conclusion, the Damage Mechanism Review (DMR) is a vital process that empowers industries to proactively manage and maintain their valuable assets’ integrity. Companies can effectively implement strategies to mitigate potential failures and enhance operational reliability by identifying potential damage mechanisms and assessing their associated risks. One prominent example of the importance of DMR is in the oil and gas industry, where equipment such as pipelines, pressure vessels, and storage tanks are subjected to harsh and corrosive environments. A DMR conducted for an offshore oil platform revealed the presence of localized corrosion due to high chloride concentrations in the production fluids. This type of corrosion could lead to the formation of pits, which might compromise the structural integrity of critical equipment.

Based on the DMR findings, the operators decided to implement cathodic protection and apply corrosion-resistant coatings on vulnerable surfaces to safeguard against the identified damage mechanism. Additionally, they adjusted the inspection frequency for the affected equipment to ensure early detection of potential issues. As a result of the DMR and the subsequent measures taken, the platform’s operational reliability significantly improved, minimizing downtime, reducing repair costs, and mitigating the risk of catastrophic failures. Furthermore, the data collected during the DMR process helped the operators enhance their corrosion monitoring and prevention programs for other assets across their facilities. By conducting regular DMRs and producing comprehensive DMR Reports, companies can foster a proactive culture focused on asset integrity and risk management. The DMR Report serves as a living document that enables continuous improvement, as it outlines considerations and recommendations for material upgrades, inspection plans, and process safeguards.

Through a collaborative effort involving subject matter experts, engineers, and other stakeholders, the DMR process empowers organizations to make informed decisions that balance operational requirements with safety and reliability. By addressing potential damage mechanisms early on, industries can prevent unexpected failures, extend the lifespan of equipment, and uphold a strong commitment to protecting the environment and the well-being of their workforce. In today’s competitive and safety-conscious landscape, embracing the principles of Damage Mechanism Review is not just best practice but a necessity. By harnessing the insights from DMRs, companies can navigate complex challenges, optimize asset performance, and establish themselves as industry leaders in sustainable and reliable operations. As technology and industry practices continue to evolve, the role of DMR will remain indispensable in ensuring the long-term viability and success of industrial enterprises worldwide.

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Thank you for taking the time to read our blog. We welcome your thoughts and ideas in the comments section. Together, let’s drive innovation and excellence in Asset Performance Management!

Rohan Patel

Founder & CEO

AsInt, Inc.

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