Xu Bo, Redmond Mark, Hammami Ahmed, Mertiny Pierre
CAEVIS Technology Ltd., 31 Kingslake Rd., Toronto, ON M2J 3E2, Canada.
Shawcor Ltd., Corporate Research & Development, 25 Bethridge Rd., Toronto, ON M9W 1M7, Canada.
Materials (Basel). 2022 Apr 6;15(7):2690. doi: 10.3390/ma15072690.
A novel elevated-temperature and high-pressure in situ punch-shear-test cell was developed to qualify materials for reliable service in harsh environments representative of those typically encountered in oil and gas operations. The proposed modular and compact test device is an extension of the ASTM D 732 punch-shear method. Conventionally, materials are first exposed to harsh environments, then removed from the aging environment for mechanical testing. This practice can lead to the generation of unrealistic (often optimistic) mechanical properties. This is especially true in the case of materials for which fluid ingress is reversible. The present contribution elaborates on the developed in situ punch-shear device that has been successfully used to realistically assess the tensile yield strength and modulus properties of in-service polymer materials based on experimentally established correlations between shear and tensile tests.
开发了一种新型的高温高压原位冲剪试验装置，以鉴定材料在石油和天然气作业中常见的恶劣环境下可靠服役的性能。所提出的模块化紧凑型试验装置是对ASTM D 732冲剪方法的扩展。传统上，材料首先暴露于恶劣环境中，然后从老化环境中取出进行力学测试。这种做法可能导致产生不切实际（通常是乐观的）力学性能。对于流体侵入可逆的材料而言尤其如此。本文详细阐述了已成功用于基于剪切试验和拉伸试验之间通过实验建立的相关性，实际评估在用聚合物材料的拉伸屈服强度和模量性能的原位冲剪装置。
