ERDC DECEL Mobile App


Deceleration-based friction assessment tool for smart phones.

This software records accelerometer and magnetometer data from commercial off the shelf smartphones and reports peak deceleration in units of %g, where g is the acceleration of gravity. The ERDC DECEL app may ask for permission to access the device's internal memory. This access is used to save acceleration and rotation data to the device at the conclusion of a deceleration test.



Android ERDC DECEL for Android

  1. Click "ERDC DECEL" Android link
  2. Click "Download"
  3. Click "Open" when the download is finished
  4. If your phone is configured to block apps from "unknown sources", Click "Settings" when prompted
  5. Check "Unknown sources" checkbox
  6. Press "OK" to allow for this installation
  7. Press "Install"
  8. You should see the "App installed" screen, press "Done"

  9. You are now ready to use the ERDC DECEL Android app

iOS ERDC DECEL for iOS

  1. Click "DoD Root CA3 Certificate" link
  2. Press "Allow"
  3. Press "Install"
  4. Enter passcode if prompted
  5. Press "Install"
  6. Press "Install"
  7. Press "Done"

  8. Click "DOD ID SW CA-38 Certificate" link
  9. Repeat above steps to install second certificate

  10. Go to "Settings"
  11. Go to "General"
  12. Go to "About"
  13. Go to "Certificate Trust Settings"
  14. Check box next to "DoD Root CA3" to "ENABLE FULL TRUST FOR ROOT CERTIFICATES"
  15. Press "Continue"

  16. Click "ERDC DECEL" iOS link
  17. Press "Install"
  18. Wait for install to complete, the ERDC DECEL icon will appear on your home page when install is completed
  19. Go to "Settings"
  20. Go to "General"
  21. Go to "Profiles & Device Management"
  22. Press "US Army Corps of Engineers"
  23. Press 'Trust "US Army Corps of Engineers"'
  24. Press "Trust"

  25. You are now ready to use the ERDC DECEL iOS app

YOU ARE ACCESSING A U.S. GOVERNMENT (USG) INFORMATION SYSTEM (IS) THAT IS PROVIDED FOR USG-AUTHORIZED USE ONLY.


By using this IS (which includes any device attached to this IS), you consent to the following conditions: The USG routinelyintercepts and monitors communications on this IS for purposes including, butnot limited to, penetration testing, COMSEC monitoring, network operations anddefense, personnel misconduct (PM), law enforcement (LE), andcounterintelligence (CI) investigations. At any time, the USG may inspect andseize data stored on this IS. Communications using, or data stored on, this ISare not private, are subject to routine monitoring, interception, and search,and may be disclosed or used for any USG-authorized purpose. This IS includessecurity measures (e.g., authentication and access controls) to protect USGinterests--not for your personal benefit or privacy. Notwithstanding the above,using this IS does not constitute consent to PM, LE, or CI investigativesearching or monitoring of the content of privileged communications, or workproduct, related to personal representation or services by attorneys,psychotherapists, or clergy, and their assistants. Such communications and workproduct are private and confidential.

See User Agreement for details.