Numerical and Experimental Analysis of Stress–Strain Characteristics in DP 600 and TRIP 400/700 Steel Sheets

The body constitutes the largest proportion of the total vehicle weight. Recently, increasing efforts have been made towards reducing its weight and improving its crashworthiness. By reducing its weight, fuel consumption will be reduced, and this will also translate into lower CO<sub>2</sub...

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Main Authors: Emil Evin, Miroslav Tomáš, Stanislav Németh
Format: Article
Language:English
Published: MDPI AG 2023-12-01
Series:Materials
Subjects:
Online Access:https://www.mdpi.com/1996-1944/17/1/210
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author Emil Evin
Miroslav Tomáš
Stanislav Németh
author_facet Emil Evin
Miroslav Tomáš
Stanislav Németh
author_sort Emil Evin
collection DOAJ
description The body constitutes the largest proportion of the total vehicle weight. Recently, increasing efforts have been made towards reducing its weight and improving its crashworthiness. By reducing its weight, fuel consumption will be reduced, and this will also translate into lower CO<sub>2</sub> emissions. In terms of safety, vehicle body components use high strength steel which can absorb a substantial amount of impact energy. The present study pays attention to DP 600 and TRIP 400/700 stress–strain characteristics at quasi-static strain rates. The stress–strain characteristics of absorption capacity, stiffness, and deformation resistance force were investigated experimentally by tensile tests, three-point bending tests, and numerical simulations. The results indicate the potential for increasing the absorption capacity, stiffness, and deformation resistance force of the vehicle body’s deformable steel components. The present study verified the possibility of replacing physical testing with numerical simulation. A reasonably satisfactory agreement between the experimentally determined stress–strain characteristics and the numerical simulation was achieved, which can reduce the development time of deformable vehicle body components, reduce costs and optimize the selection of materials. The results extend the state of knowledge on the deformation characteristics of high-strength materials and contribute to the optimization of body components in terms of passive safety and weight.
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spelling doaj.art-849e3c32ba714bdbb811dcc670f33ccb2024-01-10T15:02:59ZengMDPI AGMaterials1996-19442023-12-0117121010.3390/ma17010210Numerical and Experimental Analysis of Stress–Strain Characteristics in DP 600 and TRIP 400/700 Steel SheetsEmil Evin0Miroslav Tomáš1Stanislav Németh2Department of Automotive Production, Faculty of Mechanical Engineering, Technical University of Košice, Mäsiarska 74, 040 01 Košice, SlovakiaDepartment of Automotive Production, Faculty of Mechanical Engineering, Technical University of Košice, Mäsiarska 74, 040 01 Košice, SlovakiaUSSE Research and Development, U.S. Steel Košice s.r.o., Vstupný Areál U.S. Steel, 044 54 Košice, SlovakiaThe body constitutes the largest proportion of the total vehicle weight. Recently, increasing efforts have been made towards reducing its weight and improving its crashworthiness. By reducing its weight, fuel consumption will be reduced, and this will also translate into lower CO<sub>2</sub> emissions. In terms of safety, vehicle body components use high strength steel which can absorb a substantial amount of impact energy. The present study pays attention to DP 600 and TRIP 400/700 stress–strain characteristics at quasi-static strain rates. The stress–strain characteristics of absorption capacity, stiffness, and deformation resistance force were investigated experimentally by tensile tests, three-point bending tests, and numerical simulations. The results indicate the potential for increasing the absorption capacity, stiffness, and deformation resistance force of the vehicle body’s deformable steel components. The present study verified the possibility of replacing physical testing with numerical simulation. A reasonably satisfactory agreement between the experimentally determined stress–strain characteristics and the numerical simulation was achieved, which can reduce the development time of deformable vehicle body components, reduce costs and optimize the selection of materials. The results extend the state of knowledge on the deformation characteristics of high-strength materials and contribute to the optimization of body components in terms of passive safety and weight.https://www.mdpi.com/1996-1944/17/1/210advanced high strength steelenergy absorptionthree-point bendingexperimentsimulation
spellingShingle Emil Evin
Miroslav Tomáš
Stanislav Németh
Numerical and Experimental Analysis of Stress–Strain Characteristics in DP 600 and TRIP 400/700 Steel Sheets
Materials
advanced high strength steel
energy absorption
three-point bending
experiment
simulation
title Numerical and Experimental Analysis of Stress–Strain Characteristics in DP 600 and TRIP 400/700 Steel Sheets
title_full Numerical and Experimental Analysis of Stress–Strain Characteristics in DP 600 and TRIP 400/700 Steel Sheets
title_fullStr Numerical and Experimental Analysis of Stress–Strain Characteristics in DP 600 and TRIP 400/700 Steel Sheets
title_full_unstemmed Numerical and Experimental Analysis of Stress–Strain Characteristics in DP 600 and TRIP 400/700 Steel Sheets
title_short Numerical and Experimental Analysis of Stress–Strain Characteristics in DP 600 and TRIP 400/700 Steel Sheets
title_sort numerical and experimental analysis of stress strain characteristics in dp 600 and trip 400 700 steel sheets
topic advanced high strength steel
energy absorption
three-point bending
experiment
simulation
url https://www.mdpi.com/1996-1944/17/1/210
work_keys_str_mv AT emilevin numericalandexperimentalanalysisofstressstraincharacteristicsindp600andtrip400700steelsheets
AT miroslavtomas numericalandexperimentalanalysisofstressstraincharacteristicsindp600andtrip400700steelsheets
AT stanislavnemeth numericalandexperimentalanalysisofstressstraincharacteristicsindp600andtrip400700steelsheets