Design of a Custom Tabletop Setup for High Temperature Component Testing

Photo of Pierce Cohen, Mohammed Dhanjy, Tyler Luce, Monet Motiee Students: Pierce Cohen, Mohammed Dhanjy, Tyler Luce, Monet Motiee

Sponsor: Schlumberger

Date: Spring 2012

Requirements:
The prototype must measure force and displacement as functions of time, apply force, measure and control temperature, and quasi-control displacement. In order to minimize the error in measuring the compression of the specimen, the frame of the prototype must deflect less than 1% of the total specimen compression. To observe the effects of static compression, a maximum compression rate must be provided (100 micrometers/s) to negate any dynamic compression effects. The setup must be portable (< 2'-2'-4') and simple enough for single person operation.

Problem:
The main objective of this project was to design and construct a tabletop test setup to measure compression stress relaxation (CSR) for polymers at high temperatures. This test setup must apply and measure force, and apply and control temperature.

Solution:
The design consists of three different subsystems: the prototype frame, the prototype components, and the data acquisition system. The team chose 304 stainless steel for the frame of the prototype due to its high stiffness, corrosion resistance, and weldability. A back plate was manufactured instead of triangular trusses to reduce deflection in the frame. The components included in the prototype are an electric linear actuator, a stepper motor controller to control the actuator, and a load cell. The data acquisition system provides enough ports for all necessary data to be captured with a LabVIEW VI. A heating system must be implemented in the setup.

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