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Correlation study of a commercial truck biaxial test

Accuride, usA


At the 2018 nCode User Group Meeting, Accuride presented an introduction of fatigue analysis in the commercial truck wheel industry followed by an implementation of nCode DesignLife used for calculation of Required Fatigue Strength (RFS). Predicting fatigue damage and RFS are two methods for evaluating biaxial load testing of wheel subject to prescribed loading profiles. One of the next steps identified in the presentation was the need for follow up correlation work.

This presentation is a continuation that summarizes the correlation of measured time series biaxial test data with predicted analytical values using nCode GlyphWorks and DesignLife. The correlation begins with evaluating control input loading versus actual wheel force reactions. A strain gaged wheel is used to measure wheel strains that can be used to compare single cycle strain histories as well as test fatigue damage and RFS values. Comparisons are made with predicted values using DesignLife.

This correlation project identified area for improvement in our testing and data analysis processes. Improvements opportunities in FEA loading are also pointed out. Next steps will be to update our correlation process followed by repeated testing and failure mode correlation.

Predict test fatigue and show correlation with damage from measured strains as well as actual observed failures.
nCode GlyphWorks to evaluate time series data gathered from running a sample wheel loading sequence. The data evaluated included wheel force transducer and strain gage output. Tables of load input and predicted strains were also input for correlation with time series data.
Progress has been made towards performance prediction capability for the LBF biaxial test of commercial truck wheels. Every test series eliminated potentially saves 4-6 months of time to market.

Accuride Corporation

Accuride Corporation is a leading supplier of wheel end systems to the global commercial vehicle industry. The company’s products include steel and aluminum commercial vehicle wheels and wheel‐end components and assemblies; and steel wheels for the European automotive and global agricultural, construction and industrial equipment markets. The company’s products are marketed under its brand names, which include Accuride®, Accuride Wheel End Solutions™, Gunite® and KIC®.

We support our product portfolio with strong sales, marketing, and design engineering capabilities. Our products are manufactured in facilities throughout North America, Europe and Asia.

About Accuride Corporation

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