Dataset of Fatigue Testing on Type III CFRP Composite Pressure Vessels Using a Hydraulic Impulse Test Stand 核心 · 已核验

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This dataset contains raw experimental data from cyclic pressure testing of commercially available Type III CFRP composite pressure vessels with an aluminum liner, conducted on a hydraulic impulse test stand. The investigated vessels feature a multi-layer fiber-reinforced overwrap (CFRP and GFRP) and were instrumented with strain gauges (axial – 0° and circumferential – 90°), a Type K thermocouple, and a pressure sensor to capture the structural response under cyclic loading.

Tests were performed in a pressure range between 5 and 45 MPa at a constant frequency of 5 Hz. All sensor signals were recorded at a sampling rate of 600 Hz without any post-processing or filtering, providing fully raw measurement data. To accommodate the test setup, the internal volume of the vessels was reduced using steel displacement bodies.

A total of eight experiments were conducted, resulting in fatigue lives between 22,678 and 41,295 cycles until failure. The vessels exhibited a consistent leak-before-break behavior, with failure detected by a pressure drop due to leakage. Post-test analysis revealed crack initiation in the aluminum liner as the primary failure mechanism, followed by progressive damage in the surrounding CFRP layers and local fluid permeation through the composite structure. No catastrophic fragmentation was observed.

The dataset provides high-resolution, multi-sensor time series data suitable for fatigue analysis, structural health monitoring, and validation of numerical models for composite pressure vessels under cyclic loading.

Overview

Test

Date

File

Cycles

Notes

1

13.01.2026

test_1

22678

2

14.01.2026

test_2

24423

3

15.01.2026

test_3

27434

Strain Gauge 2 has come loose

4

16.01.2026

test_4

27595

5

26.01.2026

test_5

27303

6

27.01.2026

test_6

34523

7

27.01.2026

test_7

41295

8

28.01.2026

test_8

32250

9

19.03.2026

test_9

25998

Stopped after 10000 cyles and restartet after cooling down

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落地页

https://zenodo.org/doi/10.5281/zenodo.20035409

许可证

CC-BY-4.0 (置信:verified_official)

国内可访问性

国内直连:直连超时(慢或不稳定,非封锁证据) (2026-07-11 检测) 非直连:可达 (2026-07-11 检测)
「直连超时」表示检测窗口内未完成,系慢或不稳定证据,不构成封锁证据。

设备类型

composite_structure pressure_vessel

PHM 任务

health_state_assessment

故障工况

传感器

运行工况