TY - JOUR
T1 - Finite element simulations of the bending resistance of square profiles with topological modifications
AU - Estrada, Q.
AU - Szwedowicz, D.
AU - Vergara-Vazquez, J.
AU - Rodriguez-Mendez, A.
AU - Silva-Aceves, J.
AU - Wiebe, L. C.
N1 - Publisher Copyright:
© Published under licence by IOP Publishing Ltd.
PY - 2019/12/19
Y1 - 2019/12/19
N2 - Bending resistance is one of the most important requirements in automobile structural members when lateral crashes occur. For this purpose, the current paper studies the bending and crashworthiness capacity of square profiles with topological modifications. Several finite element simulations were carried out using Abaqus/Explicit software. The topological modifications consisted in combining a square cross-section with polygonal and circular simple cross-sections. In all cases, the profiles evaluated were simulated with mechanical properties for aluminium alloy 6063-T5 with the same mass. The feasibility of our numerical study was validated by a three-point bending tests of a square tube using a Shimadzu universal test machine. Additional to the assessment of complex cross-sections, numerical results for simple cross-sections are presented. A better crashworthiness performance is obtained when the square section of a simple profile is reinforced with topological modifications. According to the simulation results, a complex cross-section can improve the crushing force efficiency up to 77.9% with respect to a single square profile. Regarding cross-sections with topological modifications, the best bending resistance and energy absorption capacity is obtained when the square section is combined with a square profile. This means an increase of 9.2 % of energy absorption (Ea) and 5.67% of CFE respect to the cross-section formed by square and triangular shapes.
AB - Bending resistance is one of the most important requirements in automobile structural members when lateral crashes occur. For this purpose, the current paper studies the bending and crashworthiness capacity of square profiles with topological modifications. Several finite element simulations were carried out using Abaqus/Explicit software. The topological modifications consisted in combining a square cross-section with polygonal and circular simple cross-sections. In all cases, the profiles evaluated were simulated with mechanical properties for aluminium alloy 6063-T5 with the same mass. The feasibility of our numerical study was validated by a three-point bending tests of a square tube using a Shimadzu universal test machine. Additional to the assessment of complex cross-sections, numerical results for simple cross-sections are presented. A better crashworthiness performance is obtained when the square section of a simple profile is reinforced with topological modifications. According to the simulation results, a complex cross-section can improve the crushing force efficiency up to 77.9% with respect to a single square profile. Regarding cross-sections with topological modifications, the best bending resistance and energy absorption capacity is obtained when the square section is combined with a square profile. This means an increase of 9.2 % of energy absorption (Ea) and 5.67% of CFE respect to the cross-section formed by square and triangular shapes.
UR - http://www.scopus.com/inward/record.url?scp=85078516224&partnerID=8YFLogxK
U2 - 10.1088/1757-899X/710/1/012031
DO - 10.1088/1757-899X/710/1/012031
M3 - Artículo de la conferencia
AN - SCOPUS:85078516224
SN - 1757-8981
VL - 710
JO - IOP Conference Series: Materials Science and Engineering
JF - IOP Conference Series: Materials Science and Engineering
IS - 1
M1 - 012031
T2 - 4th International Conference of Computational Methods in Engineering Science, CMES 2019
Y2 - 21 November 2019 through 23 November 2019
ER -