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http://dx.doi.org/10.7234/composres.2018.31.5.238

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

Go, Eun-Su (Department of Aerospace Engineering, Chungnam National University)
Kim, Dong-Geon (Department of Aerospace Engineering, Chungnam National University)
Kim, In-Gul (Department of Aerospace Engineering, Chungnam National University)
Woo, Kyeongsik (School of Civil Engineering, Chungbuk National University)
Kim, Jong-Heon (Agency for Defense Development)
Publication Information
Composites Research / v.31, no.5, 2018 , pp. 238-245 More about this Journal
Abstract
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.
Keywords
Hydrodynamic ram; PVDF sensor; Composite T-Joint; Dynamic strain;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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