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Paper Information

Journal:   JOURNAL OF ENERGETIC MATERIALS   SPRING 2017 , Volume 12 , Number 1 (33) ; Page(s) 55 To 67.
 
Paper: 

A NEW MATHEMATICAL MODEL FOR THE PENETRATION OF SEGMENTED ROD INTO CERAMIC SEMI-INFINITE TARGET

 
 
Author(s):  ZOLFAGHARI M.*, MIRAGHAIE V.
 
* ARAK UNIVERSITY, ARAK, IRAN
 
Abstract: 

In this paper by analyzing the penetration mechanics of the segmented rods into semi-infinite ceramic targets, a mathematical model is proposed to predict segmented rod projectiles penetration into semi-infinite ceramic targets. The factors of impact velocity, segments length, segments distance and number of segments are considered, because of their importance in final penetration depth. Results show that the most important factor in penetration depth is impact velocity. Against the penetration mechanics of long rods projectiles, for segmented rod penetrating semi-infinite ceramic targets, there is no hydrodynamic speed limit and the increase rate of penetration depth is corresponding to speed increase for speeds greater than 2500 m/s. In addition, reduction in segments length causes deeper final penetration depth, so that the ideal shape for segments is a disk-like shape. Disk-like shape as ideal shape for segments shows the important role of “after flow phase” in segmented rod penetration mechanics. After validating the simulations and by the use of modified Holm-Quist model subroutine in ABAQUS software, numerous simulations were conducted which were based on design of experiment (DOE) in order to propose a model. After making sure of the results, a mathematical model based on Response Surface method (RSM) is proposed. It is recommended that the results of this study can also be employed in analysis of penetration for ceramic targets. This paper can generate a suite base to study penetration of segmented rod into targets with complex structures.

 
Keyword(s): SEGMENTED ROD, CERAMIC TARGET, PENETRATION, RESPONSE SURFACE METHODOLOGY
 
 
References: 
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+ Click to Cite.
APA: Copy

ZOLFAGHARI, M., & MIRAGHAIE, V. (2017). A NEW MATHEMATICAL MODEL FOR THE PENETRATION OF SEGMENTED ROD INTO CERAMIC SEMI-INFINITE TARGET. JOURNAL OF ENERGETIC MATERIALS, 12(1 (33) ), 55-67. https://www.sid.ir/en/journal/ViewPaper.aspx?id=570482



Vancouver: Copy

ZOLFAGHARI M., MIRAGHAIE V.. A NEW MATHEMATICAL MODEL FOR THE PENETRATION OF SEGMENTED ROD INTO CERAMIC SEMI-INFINITE TARGET. JOURNAL OF ENERGETIC MATERIALS. 2017 [cited 2021May16];12(1 (33) ):55-67. Available from: https://www.sid.ir/en/journal/ViewPaper.aspx?id=570482



IEEE: Copy

ZOLFAGHARI, M., MIRAGHAIE, V., 2017. A NEW MATHEMATICAL MODEL FOR THE PENETRATION OF SEGMENTED ROD INTO CERAMIC SEMI-INFINITE TARGET. JOURNAL OF ENERGETIC MATERIALS, [online] 12(1 (33) ), pp.55-67. Available: https://www.sid.ir/en/journal/ViewPaper.aspx?id=570482.



 
 
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