Prediction of High-Explosive Detonation Effects on Steel Sheets During Experimental Tests Using Finite Element Analysis Journal Article Anselmo S. Augusto; Fausto B. Mendonça; Girum Urgessa; Jose A. Fritz Fidel Rocco; Koshun Iha @article{232846,
title = {Prediction of High-Explosive Detonation Effects on Steel Sheets During Experimental Tests Using Finite Element Analysis},
author = {Anselmo S. Augusto and Fausto B. Mendon\c{c}a and Girum Urgessa and Jose A. Fritz Fidel Rocco and Koshun Iha},
url = {https://www.sige.ita.br/edicoes-anteriores/2023/st/232846_1.pdf},
issn = {1983-7402},
year = {2026},
date = {2026-08-10},
journal = {Spectrum - The Journal of Operational Applications in Defense Areas},
volume = {27},
number = {1},
pages = {13\textendash18},
abstract = {Investigating the effects of high explosives on metallic structures is important for the development of new protective systems and for assessing the load-bearing capacity of existing structures. To achieve these objectives, a series of detonation tests using TNT charges will be conducted to evaluate the resulting effects on 2 mm-thick A36 structural steel sheets. However, before performing the experimental tests, it is essential to accurately predict the effects of the detonations on the steel sheets in order to ensure test safety and verify that the selected explosive configurations produce the intended structural response. To accomplish this, a series of finite element method (FEM) simulations was carried out using Abaqus®, considering different expected standoff distances. The numerical results indicated that the steel sheets experienced permanent deformations exceeding the material's elastic limit without reaching failure. These findings satisfy the objectives of the study, since either negligible or catastrophic deformations would prevent the proper measurement and evaluation of blast effects on the structural elements during the experimental campaign.},
keywords = {blast effects, Dynamic Analysis, Finite Element Method (FEM), Structural Response to Explosions},
pubstate = {published},
tppubtype = {article}
}
Investigating the effects of high explosives on metallic structures is important for the development of new protective systems and for assessing the load-bearing capacity of existing structures. To achieve these objectives, a series of detonation tests using TNT charges will be conducted to evaluate the resulting effects on 2 mm-thick A36 structural steel sheets. However, before performing the experimental tests, it is essential to accurately predict the effects of the detonations on the steel sheets in order to ensure test safety and verify that the selected explosive configurations produce the intended structural response. To accomplish this, a series of finite element method (FEM) simulations was carried out using Abaqus®, considering different expected standoff distances. The numerical results indicated that the steel sheets experienced permanent deformations exceeding the material's elastic limit without reaching failure. These findings satisfy the objectives of the study, since either negligible or catastrophic deformations would prevent the proper measurement and evaluation of blast effects on the structural elements during the experimental campaign. |
Peak Displacement Comparison of RC Slabs from Blast Test Measurement and SDOF Analysis Proceedings Article Fausto Batista Mendonça; Girum Urgessa; Koshun Iha; Roberta Jachura Rocha; José Atílio Fritz Fidel Rocco @inproceedings{Fausto2017blastb,
title = {Peak Displacement Comparison of RC Slabs from Blast Test Measurement and SDOF Analysis},
author = {Fausto Batista Mendon\c{c}a and Girum Urgessa and Koshun Iha and Roberta Jachura Rocha and Jos\'{e} At\'{i}lio Fritz Fidel Rocco},
url = {https://www.sige.ita.br/edicoes-anteriores/2017/st/ST_09_2.pdf},
year = {2017},
date = {2017-01-01},
booktitle = {Simp\'{o}sio de Aplica\c{c}\~{o}es Operacionais em \'{A}reas de Defesa 2017 (SIGE2017)},
abstract = {Both civil and military facilities are increasingly targeted by terrorist attacks. Understanding the mechanical behavior of reinforced concrete (RC) structures subjected to blast is of paramount importance. A full-scale experimental program consisting of four reinforced concrete slabs with compressive strength of 60 MPa, measuring 1.0 x 1.0 x 0.08 m, and subjected to 2.7 kg of non-confined plastic bonded explosive, was conducted in blast test area of Science and Technology Aerospace Department (Brazilian Air Force). This paper presents theoretical peak displacement and compares with experimental displacement measured from the tests. Theoretical analysis was carried out using single degree of freedom (SDOF) models. The comparison showed that SDOF analysis worked very well in predicting the reinforced concrete slab peak displacement against blast effects.},
keywords = {blast effects, reinforced, single degree of freedom},
pubstate = {published},
tppubtype = {inproceedings}
}
Both civil and military facilities are increasingly targeted by terrorist attacks. Understanding the mechanical behavior of reinforced concrete (RC) structures subjected to blast is of paramount importance. A full-scale experimental program consisting of four reinforced concrete slabs with compressive strength of 60 MPa, measuring 1.0 x 1.0 x 0.08 m, and subjected to 2.7 kg of non-confined plastic bonded explosive, was conducted in blast test area of Science and Technology Aerospace Department (Brazilian Air Force). This paper presents theoretical peak displacement and compares with experimental displacement measured from the tests. Theoretical analysis was carried out using single degree of freedom (SDOF) models. The comparison showed that SDOF analysis worked very well in predicting the reinforced concrete slab peak displacement against blast effects. |
