DocumentCode :
1315209
Title :
Triaxial Acceleration Measurement for Oblique Penetration Into Concrete Target
Author :
Fan, Jinbiao ; Wang, Yan ; Zu, Jing ; Xu, Peng
Author_Institution :
Nat. Key Lab. for Electron. Meas. Technol., North Univ. of China, Taiyuan, China
Volume :
59
Issue :
11
fYear :
2010
Firstpage :
2907
Lastpage :
2913
Abstract :
To obtain accurate data of the motion parameters of a rigid projectile during the oblique penetration event, a triaxial acceleration measurement device (TAMD) was developed, and a method for the calibration of a high-g accelerometer was presented by using a Hopkinson bar and a grating laser Doppler interferometer. The buffer structure was designed, and the cushioning capacity of it was studied to improve the survivability of the multichannel data recorder. A set of penetration experiments with concrete targets that had average compressive strengths of 35 and 45 MPa was conducted to characterize the response of monolithic concrete targets to projectile impact. The 96-mm-diameter 630-mm-long ogive-nose projectiles were machined from 35CrMnSiA steel and designed to contain a TAMD in the tail of the cavity. The projectiles were launched by a 100-mm-diameter smooth-bore powder gun to striking velocities between 300 and 600 m/s, and impacted the concrete target at an oblique angle of 0°-30°. The acceleration during the launch and the triaxial deceleration during the penetration were successfully recorded by the TAMD. The measured penetration data and deceleration-time data were analyzed.
Keywords :
acceleration measurement; calibration; light interferometers; Hopkinson bar; concrete target; grating laser Doppler interferometer; oblique penetration; rigid projectile; triaxial acceleration measurement; Acceleration; Accelerometers; Calibration; Concrete; Doppler effect; Electric shock; Projectiles; Calibration; concrete target; oblique penetration; triaxial acceleration measurement; triaxial acceleration measurement device (TAMD);
fLanguage :
English
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9456
Type :
jour
DOI :
10.1109/TIM.2009.2027767
Filename :
5565479
Link To Document :
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