Yong Suna, Hyun-Seop Leea, and Bongtae Hana
a CALCE, Center for Advanced Life Cycle Engineering, Department of Mechanical Engineering, University of Maryland, College Park, Maryland 20740, USA
The advanced fiber Bragg grating (FBG) sensor
system is proposed and implemented to measure the
comprehensive viscoelastic properties of epoxy molding
compound. With the method, two of elastic constants can be
measured directly from a single specimen configuration:
temperature- and time -dependent Young’s modulus and Bulk
modulus. The results of an advanced EMC are presented. A
supplementary experiment is also conducted to verify the
validity of the measured properties. The experimental results
match very well to the numerical predictions, which
corroborate the accuracy of the measured quantities.
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