SMTA International Conference Proceedings


X-ray Micro Computed Tomography Based Fe Models for Potted Fuze Electronics Assemblies

Authors: Pradeep Lall, Nakul Kothari, John Deep, Jason Foley, Ryan Lowe
Company: Auburn University, Air Force Research Laboratories, ARA Associates
Date Published: 9/17/2017   Conference: SMTA International


Abstract: Electronic fuze assemblies may be exposed to harsh environments during prolonged storage, transport and deployment. Under exposure to storage-transport environmental loads including mechanical shock, temperature, vibration and humidity the fuze assemblies may sustain damage without any surface signs of visible degradation. Further, the operational environment requires survivability under high-g loads often in excess of 10,000g. The need for non-destructive test methods to allow for determination of the internal damage and the assessment of expected operational reliability under the presence of accrued damage from prolonged storage is extremely desirable. While a number of non-destructive test methods such as x-ray, and acoustic imaging exist in the state-of-art – they are limited to the acquisition of imaging of the internal damage state without the ability of conducting measurement of deformation under the action of environment loads. In this paper, a new method has been presented for the creation of the finite element models using x-ray micro-computed tomography data. Further, a method has been presented for measurement of internal deformation in fuze assemblies under the action of environment temperature gradients prior to and subsequent to exposure to operational mechanical shock using a combination of x-ray micro-computed tomography and digital volume correlation.



Members download articles for free:

Not a member yet?

What else do you get when you join SMTA? Read about all of the benefits that go along with membership.

Notice: Sharing of articles is restricted to just your immediate work group. Downloaded papers should not be stored on an external network or shared on the internet.


Back


SMTA Headquarters
6600 City West Parkway, Suite 300
Eden Prairie, MN 55344 USA

Phone +1 952.920.7682
Fax +1 952.926.1819