Improvement and Simulation of THOR Formula with Yaw Angle

The THOR formula is widely used in the investigation of vulnerability and effectiveness of weapon system, however, its application was limited by the small slenderness ratio and limited materials of target. In order to investigate the damage effect of KE-rod warhead, this paper, basing on the clas...

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Main Authors: Jie Wang, Ying-chun Wang, Sheng-qing Zhu, Wei-hua Ren, Tian-lin Niu
Format: Article
Language:English
Published: Eastern Macedonia and Thrace Institute of Technology 2014-04-01
Series:Journal of Engineering Science and Technology Review
Subjects:
Online Access:http://www.jestr.org/downloads/Volume7Issue2/fulltext167214.pdf
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author Jie Wang
Ying-chun Wang
Sheng-qing Zhu
Wei-hua Ren
Tian-lin Niu
author_facet Jie Wang
Ying-chun Wang
Sheng-qing Zhu
Wei-hua Ren
Tian-lin Niu
author_sort Jie Wang
collection DOAJ
description The THOR formula is widely used in the investigation of vulnerability and effectiveness of weapon system, however, its application was limited by the small slenderness ratio and limited materials of target. In order to investigate the damage effect of KE-rod warhead, this paper, basing on the classic THOR formula, focused on improving the formula of residual velocity and residual mass. The improved THOR model could predict the residual velocity and residual mass of KE-rod penetration in the complex conditions, and the predictions were found to be consistent with the experimental numerical results in the literatures. As the experimental data is limited, for the better validation of the improved formula, the paper investigated further research and verification of the improvement THOR formula with numerical simulation. Since the experimental data are limited for hypervelocity impact, comparisons of results between M-THOR with experimental and numerical data were widely preceded. The error is less than 4.8% for the predicted residual velocity while 5.4% for predicted residual velocity. The effect of yaw angle in the modified THOR formula was also found to agree quite well with the reference.
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spelling doaj.art-a146425fc75a43dd81515ae84a4676ed2022-12-21T22:37:19ZengEastern Macedonia and Thrace Institute of TechnologyJournal of Engineering Science and Technology Review1791-23771791-23772014-04-0172106112Improvement and Simulation of THOR Formula with Yaw AngleJie Wang0Ying-chun Wang1Sheng-qing Zhu2Wei-hua Ren3Tian-lin Niu4Air and Missile Defense College, Air Force Engineering University, Xi’an 710051, ChinaAir and Missile Defense College, Air Force Engineering University, Xi’an 710051, ChinaDepartment of Offshore Engineering, American Bureau of Shipping, SingaporeAir and Missile Defense College, Air Force Engineering University, Xi’an 710051, ChinaAir and Missile Defense College, Air Force Engineering University, Xi’an 710051, ChinaThe THOR formula is widely used in the investigation of vulnerability and effectiveness of weapon system, however, its application was limited by the small slenderness ratio and limited materials of target. In order to investigate the damage effect of KE-rod warhead, this paper, basing on the classic THOR formula, focused on improving the formula of residual velocity and residual mass. The improved THOR model could predict the residual velocity and residual mass of KE-rod penetration in the complex conditions, and the predictions were found to be consistent with the experimental numerical results in the literatures. As the experimental data is limited, for the better validation of the improved formula, the paper investigated further research and verification of the improvement THOR formula with numerical simulation. Since the experimental data are limited for hypervelocity impact, comparisons of results between M-THOR with experimental and numerical data were widely preceded. The error is less than 4.8% for the predicted residual velocity while 5.4% for predicted residual velocity. The effect of yaw angle in the modified THOR formula was also found to agree quite well with the reference.http://www.jestr.org/downloads/Volume7Issue2/fulltext167214.pdfpenetrationprojectiletargetKE-rodyaw angleimprovementcalculation
spellingShingle Jie Wang
Ying-chun Wang
Sheng-qing Zhu
Wei-hua Ren
Tian-lin Niu
Improvement and Simulation of THOR Formula with Yaw Angle
Journal of Engineering Science and Technology Review
penetration
projectile
target
KE-rod
yaw angle
improvement
calculation
title Improvement and Simulation of THOR Formula with Yaw Angle
title_full Improvement and Simulation of THOR Formula with Yaw Angle
title_fullStr Improvement and Simulation of THOR Formula with Yaw Angle
title_full_unstemmed Improvement and Simulation of THOR Formula with Yaw Angle
title_short Improvement and Simulation of THOR Formula with Yaw Angle
title_sort improvement and simulation of thor formula with yaw angle
topic penetration
projectile
target
KE-rod
yaw angle
improvement
calculation
url http://www.jestr.org/downloads/Volume7Issue2/fulltext167214.pdf
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AT yingchunwang improvementandsimulationofthorformulawithyawangle
AT shengqingzhu improvementandsimulationofthorformulawithyawangle
AT weihuaren improvementandsimulationofthorformulawithyawangle
AT tianlinniu improvementandsimulationofthorformulawithyawangle