Influence of Elevated Temperature on the Acoustic Emission Evaluation of FRP Vessels Through Internal Fluid Pressure Tests

Author:

Ramirez Guillermo1,Ziehl Paul H.2,Fowler Timothy J.3

Affiliation:

1. Department of Civil and Environmental Engineering, University of Texas at Arlington, P.O. Box 19308, Arlington, TX 76019-0308

2. Department of Civil and Environmental Engineering, University of South Carolina, 300 Main Street, Columbia, SC 29208

3. Department of Civil Engineering, Ferguson Structural Engineering Laboratory, University of Texas at Austin, 10100 Burnet Road, Building No. 177, Austin, TX 78731

Abstract

A research program evaluating the effect of elevated temperature in the acoustic emission testing of fiberglass vessels was completed recently. The program aimed at evaluating the current ASME provisions that require acoustic emission testing for Class II vessels be carried out at operating temperature in the event that the operating temperature exceeds 49°C (120°F). Lack of data from fiber reinforced polymer vessels and/or components that have been subjected to acoustic emission evaluation at elevated temperature has resulted in speculation regarding the appropriateness of conducting the acoustic emission evaluation at elevated temperature. To address these issues, an experimental investigation was conducted on representative coupon specimens and pressurized cylindrical specimens at differing temperatures. The results from the coupon tests were presented in a previous publication. This paper will present the results of the cylindrical specimens and compare them to the coupon specimens drawing the final conclusions from the overall results of the program. The results from this study resulted in changes in the body of the ASME code for testing pressure vessels with acoustic emission at temperature.

Publisher

ASME International

Subject

Mechanical Engineering,Mechanics of Materials,Safety, Risk, Reliability and Quality

Reference10 articles.

1. Ziehl, P. H. , 2000, “Development of a Damage Based Design Criterion for Fiber Reinforced Polymer Vessels,” Ph.D. thesis, Department of Civil Engineering, University of Texas at Austin, Austin.

2. Fiber Reinforced Vessel Design With a Damage Approach;Ziehl;Compos. Struct.

3. Nondestructive Evaluation of FRP Design Criteria With Primary Consideration to Fatigue Loading;Ramirez;ASME J. Pressure Vessel Technol.

4. Effect of Temperature on Acoustic Emission Evaluation of FRP Vessels (Tensile Specimens);Chen;ASME J. Pressure Vessel Technol.

5. ASME Boiler and Pressure Vessel Committee, 2004, “Section X: Fiber Reinforced Plastic Pressure Vessels,” Subcommittee on Fiber-Reinforced Plastic Pressure Vessels, 2004 Edition With Subsequent Addenda, ASME, New York.

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