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Computer Modeling of Magnetostrictive Sensors

Computer Modeling of Magnetostrictive Sensors. By: Marcus Busse , Ashraf Al- Hajjeh Advisor: Dr. Chiu Law, Dr. Rani El- Hajjar. Objectives. C reate a model that predicts the strain behavior of magnetostrictive sensors when exposed to magnetic fields.

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Computer Modeling of Magnetostrictive Sensors

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  1. Computer Modeling of Magnetostrictive Sensors By: Marcus Busse, Ashraf Al-Hajjeh Advisor: Dr. Chiu Law, Dr. Rani El-Hajjar

  2. Objectives • Create a model that predicts the strain behavior of magnetostrictive sensors when exposed to magnetic fields. • Use the model to conduct numerical experiments related to sensor configuration such as volume fraction of sensors and particle shape.

  3. Approach • Find literature that describes the effect of magnetostriction • Find property values for our magnetostrictive material, Terfenol-D • Construct the model to simulate our lab experiments • Test the model for accuracy and fix any issues that arise • Start experimentation and continue checking for accuracy

  4. Results • Particle size and particle shape have little to no influence on magnetostriction. • Particle shape can play a large role depending on how the magnetic field is applied. If applied in the direction of elongated side of the particle, the change in length is greater. • Volume fraction has a strong influence on performance of sensors. Sensors with more Terfenol-D experienced greater magnetostriction. Volume fraction results Particle shape results

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