AMPP Store - Products tagged with 'environmental severity'

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A Comparative Assessment of Environmental Severity Monitoring Techniques

Product Number: 51323-18887-SG

Author: Steven Kopitzke, Christine E. Sanders, Alexander Lilly, Raymond J. Santucci

Publication Date: 2023

$20.00

Evaluating the location-based risk of corrosion is critical to a number of fields of industry. Within naval aviation, knowing the risk of corrosion from environmental factors can be used to ensure that maintenance intervals are properly planned. From a basic research aspect, understanding how different sites behave allows researchers to better correlate how performance at a standard test site can be extrapolated in future research efforts. However, a survey of literature and conversations with many corrosion experts has shown variability in how environmental factors are assessed.

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AMPP SP21554-1-2023, Environmental Severity Monitoring Site Selection Guide

Product Number: AMPP SP21554-1-2023

Publication Date: 2023

$109.00

This document is to serve as a guide towards location selection criteria for researchers measuring the risk of environmental corrosion. It is not a set of instructions for how to build a standardized test site with well-defined exposure conditions. Rather, the goal of this document is to provide guidance on how to select test locations when pre-installed exposure racks or defined test areas are not established. While this document is part of a group of standards designed to quantify environmental severity for the aerospace and defense industry, this standard is intended to be applicable to all industries.

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Atmospheric Environment Severity Monitoring for Corrosion Management

Product Number: 51323-19464-SG

Author: Liam Agnew, Brandi Clark, Victoria Avance, Fritz Friedersdorf

Publication Date: 2023

$20.00

Corrosion costs the US Department of Defense billions of dollars annually, with the impact of corrosion estimated at $20.6B in fiscal year 2016. It continues to be one of the leading causes of aircraft unavailability and accounts for a significant portion of maintenance labor and costs. Corrosion management practices are chosen to minimize maintenance costs while maximizing the availability of an asset.

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Development of Corrosion Severity Assessment Algorithms Using Environmental Monitoring Sensors in Naval Aviation Environments

Product Number: 51324-20663-SG

Author: Alexander Lilly; Steven Kopitzke; Ian Long

Publication Date: 2024

$40.00

Currently, Naval aircraft are inspected for corrosion based on Reliability Centered Maintenance analysis of component failure rates in a feedback loop scheme. Recently developed sensors allow for the measurement and recording of temperature, relative humidity, and solution conductivity in 30 minute intervals. These sensors were deployed collocated with corrosion witness coupons across two 1-year deployments spanning 26 naval aviation relevant locations. Features were engineered from the sensor data, and algorithms were trained to predict the mass loss observed on the collocated witness coupons. Using leave-one-out-cross-validation, the highest performing algorithms possessed an accuracy of 77% in the classification of site corrosion severity based on Aermet 100 mass loss, a landing gear high strength steel.

Products tagged with 'environmental severity'

A Comparative Assessment of Environmental Severity Monitoring Techniques

AMPP SP21554-1-2023, Environmental Severity Monitoring Site Selection Guide

Atmospheric Environment Severity Monitoring for Corrosion Management

Development of Corrosion Severity Assessment Algorithms Using Environmental Monitoring Sensors in Naval Aviation Environments

Association for Materials Protection and Performance