Determination and Validation of Parameters for Riedel-Hiermaier-Thoma Concrete Model

Authors

  • Yu-Qing Ding National University of Defense Technology, Changsha - 410 073, China
  • Wen-Hui Tang National University of Defense Technology, Changsha - 410 073, China
  • Ruo-Qi Zhang National University of Defense Technology, Changsha - 410 073, China
  • Xian-Wen Ran National University of Defense Technology, Changsha - 410 073, China

DOI:

https://doi.org/10.14429/dsj.63.3866

Keywords:

Concrete, impact, Riedel-Hiermaier-Thoma, RHT model, model calibration

Abstract

Numerical modelling of the complex physical processes such as concrete structures subjected to high-impulsive loads relies on suitable material models appropriate for impact and explosion problems. One of theextensive used concrete material models, the RHT model, contains all essential features of concrete materialssubjected to high dynamic loading. However, the application of the RHT model requires a set of material propertiesand model parameters without which reliable results cannot be expected. The present paper provides adetailed valuation of the RHT model and proposes a method of determining the model parameters for C40 concrete.Furthermore, the dynamic compressive and tensile strength function of the model formulation are modified toenhance the performance of the model as implemented in the hydrocode AUTODYN. The performance of thedetermined parameters of the modified RHT model is demonstrated by comparing to available experimentaldata, and further verified via simulations of physical experiments of concrete penetration by steel projectiles.The results of numerical analyses are found closely match the penetration depth and the crater size in the frontsurface of the concrete targets.

Defence Science Journal, 2013, 63(5), pp.524-530, DOI:http://dx.doi.org/10.14429/dsj.63.3866

Author Biographies

Yu-Qing Ding, National University of Defense Technology, Changsha - 410 073, China

Mr Yuqing Ding obtained his Master’s degree from National University of Defense Technology, China, in 2009. He is pursuing PhD at NUDT. His research areas are engineering mechanics and the vulnerability of targets.

Wen-Hui Tang, National University of Defense Technology, Changsha - 410 073, China

Dr Wenhui Tang obtained his PhD from National University of Defense Technology, China, in 1995. At present, he is Professor at Institute of Engineering Physics, NUDT. His research interests are explosion mechanics, the vulnerability of targets, and shock wave physics.

Ruo-Qi Zhang, National University of Defense Technology, Changsha - 410 073, China

Mr Ruoqi Zhang is Professor at Institute of Engineering Physics, NUDT. His research interests are in shock wave physics, explosion mechanics and explosion protection.

Xian-Wen Ran, National University of Defense Technology, Changsha - 410 073, China

Dr Xianwen Ran obtained his PhD from National University of Defense Technology, China, in 2006. He is working as a Lecturer at Institute of Engineering Physics, NUDT. His research interests are explosion mechanics, the vulnerability of targets, and shock induced phase transition.

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Published

2013-09-25

How to Cite

Ding, Y.-Q., Tang, W.-H., Zhang, R.-Q., & Ran, X.-W. (2013). Determination and Validation of Parameters for Riedel-Hiermaier-Thoma Concrete Model. Defence Science Journal, 63(5), 524–530. https://doi.org/10.14429/dsj.63.3866

Issue

Vol. 63 No. 5

Section

Engineering Science & Technology

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