Global Harmonization of Fatigue Life Testing in Gaseous Hydrogen

Volume 6B: Materials and Fabrication Pub Date : 2018-07-15 DOI:10.1115/PVP2018-84898

C. S. Marchi, J. Yamabe, M. Schwarz, H. Matsunaga, S. Zickler, S. Matsuoka, Hideo Kobayashi

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引用次数: 5

Abstract

Methods to qualify materials for hydrogen service are needed in the global marketplace to enable sustainable, low-carbon energy technologies, such as hydrogen fuel cell electric vehicles. Existing requirements for qualifying materials are not adequate to support growth of hydrogen technology as well as being inconsistent with the growing literature on the effects of hydrogen on fracture and fatigue. This report documents an internationally coordinated effort to develop a test method for qualifying materials for high-pressure hydrogen fuel system onboard fuel cell electric vehicles. In particular, consistency of fatigue life testing strategies is discussed. Fatigue life tests were conducted at three different institutes in high-pressure gaseous hydrogen (90 MPa) at low temperature (233K) to confirm consistency across distinct testing platforms. The testing campaign includes testing of both smooth and notched axial fatigue specimens at various combinations of pressure and temperature. Collectively these testing results provide insight to the sensitivity of fatigue life testing to important testing parameters such as pressure, temperature and the presence of stress concentrations.

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气态氢疲劳寿命试验的全局统一

为了实现可持续的低碳能源技术，如氢燃料电池电动汽车，全球市场需要对氢服务材料进行合格鉴定的方法。现有对合格材料的要求不足以支持氢技术的发展，也与越来越多的关于氢对断裂和疲劳影响的文献不一致。本报告记录了一项国际协调努力，旨在开发一种用于燃料电池电动汽车车载高压氢燃料系统的合格材料的测试方法。特别讨论了疲劳寿命试验策略的一致性。在三个不同的研究所进行了高压气态氢(90mpa)和低温(233K)下的疲劳寿命测试，以确认不同测试平台的一致性。测试活动包括在各种压力和温度组合下对光滑和缺口轴向疲劳试样进行测试。总的来说，这些测试结果为疲劳寿命测试对压力、温度和应力集中等重要测试参数的敏感性提供了见解。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Volume 6B: Materials and Fabrication

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