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Test Data Processing and Durability Analysis

Explore full functionality and product options of GlyphWorks


From simple processing to advanced durability analysis, customize your nCode GlyphWorks experience by selecting from modules that suit your analysis needs. Gain flexible access to product options and use only when you need them by leveraging token-based licensing. 

Visualize, analyze, filter and report

nCode Fundamentals includes support for a wide range of data formats and types of displays. It is a pre-requisite for all other product options and provides visualization and basic manipulation, frequency spectrum analysis, filtering capabilities, and automated reporting. 


  • Electric Power glyph
  • Input/output support of multiple data formats
  • Channel calculator
  • Channel reassignment
  • Filtering
  • Extraction and concatenation
  • Statistics and running statistics
  • Resampling
  • Unit conversion
  • Frequency analysis
  • Time at level analysis
  • Rainflow counting
  • Graphical editor
  • Visualization and reporting
  • Batch and interactive interface
  • SuperGlyph to encapsulate multiple analysis functions as a single glyph that can be saved and reused
  • ScheduleCreate durability duty cycle definition

Feature identification in time series data


The Signal option contains a set of glyphs often used in durability test applications to identify ‘features’ such as spikes, drift, and flat-lines within time series data. Features can be viewed and corrected automatically using other glyphs such as the Graphical Editing glyph. This option also contains a number of glyphs that can be used to describe a measured signal such as additional histograms or relative damage.

Signal Option features:

  • Level crossing counting
  • Joint distribution analysis
  • Peak valley slice
  • PSD to rainflow cycle counting
  • Trend removal
  • Markov counting
  • Relative damage calculation
  • Flat-line detection
  • Drift and spike detection
  • Frequency-banded relative damage spectrum
  • Rainflow exploration
  • Rainflow to time series
  • Curve fitting
  • Weibull analysis

Calculate fatigue life from measured data  

GlyphWorks provides the industry-leading fatigue analysis technology necessary to calculate fatigue life from measured data. A materials database with commonly used fatigue data is also provided.

With the Fatigue option, you can:

  • Correct for mean stress and surface finish effects
  • Back calculate from each data channel to determine a scale or fatigue concentration factor required to achieve a target life
  • Review damage histograms to determine which load cycles were most damaging
  • Output damage time histories to show exactly when the damage occurred


Uses a nominal stress approach for high-cycle conditions or non-metallic applications. A wide range of methods is provided for defining the SN curves including the ability to interpolate multiple material data curves for mean stress effects.


Commonly used for more severe loading conditions (low-cycle fatigue) – where plasticity is significant. Supports Coffin-Manson-Basquin formula with additional mean stress corrections such as Morrow and Smith-Watson-Topper.

Crack Growth

Provides linear elastic fracture mechanics to determine how a crack will propagate after initiation.

Creep Analysis

Performs creep calculation for time in hours to rupture at high temperatures. Supports Larson-Miller and Chaboche methods.

Create accelerated structural tests

Performing durability tests, such as vehicle road simulators, can take many weeks and require huge amounts of time history data. Fatigue Editing is an option used to perform damage sensitive editing to generate shorter time series data that retain the required damage.

With Fatigue Editing you can:

  • Shorten multi-axial durability tests while retaining damage to save time and money
  • Assess the trade-off between time saved and damage retained across multiple channel

A highly flexible tool, Fatigue Editing uses the powerful Fatigue glyphs enabling the user complete control over the parameters used in the damage calculations.

Find the optimal mix of test tracks to match an overall durability target

Physical durability testing often requires determination of the optimum, most efficient mix of events required to match an overall target. Optimized Testing provides a proven approach to find the optimum solution across many channel locations.

A wide range of inputs from measured data such as rainflow cycle counts or relative damage values enables many industry applications. The optimization methods for best fit least-squares regression and constrained minimization routines employ robust algorithms from IMSL® Numerical Library.

With Optimized Testing you can:

  • Significantly reduce proving ground track usage
  • Optimize testing schedules and reduce testing time
  • Understand how real world usage compares to track data
  • Rapidly compare different proving grounds or duty cycle

Vibration test profile design

Vibration Profile Design (formerly Accelerated Testing) provides the ability to create a representative PSD or swept sine shaker vibration test based on measured data. It uses the fatigue damage spectrum approach as described in NATO STANAG 4370 (AECTP-240)/ UK DefStan 00-35/Mil-Std-810G, allowing users to tailor vibration tests to a target vibration environment. With Vibration Profile Design, users can also compare existing test evidence against the requirements of a known test specification, enabling assessment of whether components in service will likely survive to the target service life. This known safety margin may help extend the life of parts in service or conversely avoid unexpected failures.

With Vibration Profile Design you can:

  • Create an accelerated shaker test and assess the impact on shock and fatigue damage
  • Rapidly compare an existing test specification with service vibration data
  • Extend the life of parts in-service or avoid unexpected failures
  • Understand the impact of exposure time in-service and on the test rig

Frequency domain analysis

nCode VibeSys provides a set of glyphs that enable vibration engineers to design a reliable product that satisfies customers’ expectations in terms of sound, comfort, and regulatory requirements. It expands functionality previously released as the Frequency option in GlyphWorks and includes a Vibration Manager, providing the ability for users to enter, edit, and view vibration specification data.

A specialized product option for identifying modes of vibration and extracting modal parameters is available in the VibeSys Modal Analysis module.

Display and synchronize video with data

Media Display glyph enables video and audio signals to be played using Windows Media® player embedded in the glyph. It also enables cursor synchronization with other data displays to gain insight on what was occurring in other signals. The Gauge Display glyph enables synchronized values to be displayed during playback in a variety of styles such as angular gauges or digital read-outs. The Video Player glyph can display multiple synchronized videos. It enables cursor synchronization with other data displays and multiple Video Players can run in synchronization.

GPS mapping of data points


Quickly plot thousands of latitude and longitude GPS data on a map or grid background with GPS Display in GlyphWorks. Data can be also exported for vieweing in Google Maps™ or Google Earth™. Feature lists are also supported, allowing locations of interest on the data lines to be automatically identified and marked. Regions for editing data can be defined based on geographical location.

The GPS Processing glyph enables vehicle performance data to be estimated from low sample rate GPS data. Calculated channels include speed, percent gradient, yaw rate, and lateral acceleration— it can even be used to estimate engine power and braking power.

Interactive ASAM ODS access

The ASAM ODS option enables you to perform a search based on metadata and edit data from your ASAM ODS database within the GlyphWorks interface. ASAM ATF and ATFX files are also supported and can be both imported and exported.

Custom methods and file formats

GlyphBuilder combines both Scripting glyph and OpenGlyph capabilities, enabling users to add their own unique or proprietary methods and file formats to GlyphWorks. The Scripting glyph enables new functionality to be added to GlyphWorks by using MATLAB or Python programming language (can be downloaded at Both Python 2 and Python 3 are supported.

OpenGlyph directly enables external applications such as Visual Basic, Java, nCL, and C++ to be accessed from within a GlyphWorks process.

Ready to achieve success through failure prediction?