ASTM E132 test method covers the determination of Poisson’s ratio from tension tests of structural materials at room temperature. This test method is limited to specimens of rectangular sections and materials in which strain is produced immediately during the test.
ASTM E132 Standard Test Method for Poisson’s Ratio at Room Temperature
What is ASTM E132?
ASTM E132 Sample Preparation Guide
In ASTM E132 (Standard Test Method for Poisson’s Ratio at Room Temperature), the specimen width and thickness shall be parallel within 0.001 in. (0.025 mm) and 0.0001 in. (0.0025 mm), respectively. Specimen thickness shall be measured to within 0.001 in. (0.025 mm), and width is measured to within 0.0001 in. (0.0025 mm) at three locations, and an average is determined.
What are the Testing Procedure and Requirements of ASTM E132?
In ASTM E132, the width and thickness of the sample are measured and recorded. The average cross-sectional area of the specimen gauge section is calculated. The specimen is placed in the grip. The deflectometer and the optical extensometer are attached to the gauge section of the sample. The two measurement devices are placed on the specimen with a free distance of at least one specimen width between any extensometer and the nearest fillet, and at least two specimen widths between any extensometer and the nearest grip. The load is applied. The testing speed is low enough to make the thermal effects of adiabatic expansion or contraction negligible.
The precision of the value of Poisson’s ratio obtained in the ASTM E132 test depends on the number of data pairs of longitudinal and transverse strain taken. For ductile materials, the test is continued until the yield strength or yield point, and sometimes the strength at a strain greater than the yield strain is determined. For brittle materials, the extensometer is removed, and the test is continued until failure. The graph is plotted for the average longitudinal strain and the average transverse strain against the applied force.
Analysis Result and Interpretation
- ASTM E132 test method covers the determination of Poisson’s ratio from tension tests of structural materials at room temperature.
- The formula for Poisson’s ratio is,
=ϵtϵl
ϵt is the Lateral or Transverse Strain.
ϵl is the Longitudinal or Axial Strain.
FAQ
Where can I get the astm e132 tested?
You can share your astm e132 testing requirements with MaTestLab. MaTestLab has a vast network of material testing laboratories, spread across the USA and Canada. We support your all material testing needs ranging from specific astm e132 test to various testing techniques.
How much do I need to pay for the astm e132 test?
Please contact us for a detailed quote for your astm e132 testing needs. Cost incurred to carry out different astm e132 testing methodology depends on the type of raw material; number of samples, coupons, or specimens; test conditions, turn around time etc. Costs of some ASTM testing methods start from $100 and the final value depends upon the factors listed above. Please contact us for the best and latest prices.
How many samples are required for astm e132?
The required number of samples or specimens should comply with the procedure given in the astm e132 standard. However, the MaTestLab operations team can assist you for your special requirements once you share your testing details with us.
How much discount can I get on the astm e132 test?
MaTestLab has a vast testing laboratory network, hence we bring you the best testing facilities in a cost-effective way. We offer considerable discounts (15-20%) to our returning customers based on test volume and frequency.
How many days will it take to complete the astm e132 test?
The turnaround time for astm e132 test methodology depends upon the test procedure mentioned in the standard test document. However, we at MaTestLab understand your research requirements and hence try to get your test completed within the least possible time.
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