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Fracture Property Characterization of Glass Filled Epoxy Material for Automotive Electronics
Technical Paper
2007-26-063
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Event:
SIAT 2007
Language:
English
Abstract
In the present work fracture characterization of the glass filled epoxy material has been carried out. Such materials possess excellent ultimate, impact and fracture strength. Typical applications of this material are automobile body panels, bumpers, seats, and boat hulls, circuit boards.
Experiments have been performed in two parts. In the first part, a tensile test has been carried out as per ISO-527/ASTM D638 standard to determine the Young's modulus of the material. Specimens have been prepared along and across fiber orientation to find out the orthotropic properties of material.
In the second part of the experiment, a fracture test has been performed using compact tension specimens in both along and across of fiber orientations to compute the fracture parameters of the material. ASTM D5045 and ASTM E1820 have been used as guidelines for experimental setup and fracture parameters calculation.
A similar fracture test has been simulated in ANSYS with experimental results as input/reference. The analysis output of fracture parameters has been verified to correlate with experiment results. Applicability of such ANSYS results is currently limited to isotropic materials only. Displacement extrapolation method and virtual crack extension method has been used to suggest guidelines to enhance the applicability of simulation result for orthotropic materials.
Use of the above guidelines has been demonstrated on Compact Tension (CT) specimen and auto components for pass-fail recommendation.
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Authors
Topic
Citation
Singh, A., Krishna, A., and Sarpabhushan, K., "Fracture Property Characterization of Glass Filled Epoxy Material for Automotive Electronics," SAE Technical Paper 2007-26-063, 2007, https://doi.org/10.4271/2007-26-063.Also In
References
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- Taylor David Cornetti Pietro Pugno Nicola “The Fracture Mechanics of Finite Crack Extension” Composites Science and Technology 64 2004 1915 1919
- Kumar Singh Ajay “Crack Propagation Life Calculation of Steam Turbine Blade Using Fracture Mechanics Approach” M.Tech. Project Dept. of Applied Mechanics IIT Delhi December 1997