Measurement of Dynamic Strains on Composite T-Joint Subjected to Hydrodynamic Ram Using PVDF Sensors

被引：0

作者：

Go, Eun-Su ^{[1
]}

Kim, Dong-Geon ^{[1
]}

Kim, In-Gul ^{[1
]}

Woo, Kyeongsik ^{[2
]}

Kim, Jong-Heon ^{[3
]}

机构：

[1] Chungnam Natl Univ, Dept Aerosp Engn, Daejeon, South Korea

[2] Chungbuk Natl Univ, Sch Civil Engn, Cheongju, South Korea

[3] Agcy Def Dev, Daejeon, South Korea

来源：

COMPOSITES RESEARCH | 2018年 / 31卷 / 05期

关键词：

Hydrodynamic ram; PVDF sensor; Composite T-Joint; Dynamic strain;

D O I：

10.7234/composres.2018.31.5.238

中图分类号：

TB33 [复合材料];

学科分类号：

摘要：

The hydrodynamic ram (HRAM) phenomenon is one of the main types of ballistic battle damages of a military aircraft and has great importance to airframe survivability design. The HRAM effect occurs due to the interaction between the fluid and structure, and damage can be investigated by measuring the pressure of the fluid and the dynamic strains on the structure. In this paper, HRAM test of a composite T-Joint was performed using a ram simulator which can generate HRAM pressure. In addition, calibration tests of PVDF sensor were performed to determine the circuit capacitance and time constant of the measurement system. The failure behavior of the composite T-Joint due to HRAM pressure was examined using the strain gauges and a PVDF sensor which were attached to the surface of the composite T-Joint.

引用

页码：238 / 245

页数：8

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