|
|
|
| A study on energy absorption characteristics and multi-objective optimization of an axial variable thickness star-shaped tube |
| DENG Xiaolin1, HUANG Jiale2, 3 |
1.School of Electronics and Information Engineering,Wuzhou University, Wuzhou 543002, China;
2.School of Mechanical and Electrical Engineering, Guangzhou University, Guangzhou 510006, China;
3.Department of Mechanical and Electrical Engineering, Xiamen University, Xiamen 361005, China |
|
|
|
Abstract A new type of axially variable thickness star-shaped tube is proposed. Abaqus/Explicit is used to construct the finite element model of the structure, and the accuracy of the finite element model is verified. The structure’s crashworthiness such as deformation mode, force-displacement and energy absorption under axial impact was systematically studied, and its key crashworthiness indexes were analyzed. The crashworthiness of star-shaped tubes with different corners under the same mass is studied. The optimization study of the star-shaped tube was carried out. The results show that the proposed axial variable thickness star-shaped tube has great advantages in reducing the initial peak force and improving the crush force efficiency compared with the star-shaped tube of constant wall thickness. Compared with the original design, the optimal design obtained by multi-objective optimization has effectively improved the crashworthiness, the specific energy absorption is increased by 6.02%, and the initial peak force is reduced by 39.56%. This research can provide reference for the design of axially variable thickness energy absorbing structure.
|
|
Received: 18 December 2020
Published: 28 April 2022
|
|
|
|
[1] XU F X, ZHANG X, ZHANG H. A review on functionally graded structures and materials for energy absorption [J]. Engineering Structures, 2018, 171: 309-325.
[2] NIKBAKHT S, KAMARIAN S, SHAKERI M. A review on optimization of composite structures Part II: Functionally graded materials [J]. Composite Structures, 2019, 214: 83-102.
[3] YAO S G, XING Y, ZHAO K. Crashworthiness analysis and multiobjective optimization for circular tubes with functionally graded thickness under multiple loading angles [J]. Advances in Mechanical Engineering, 2017, 9(4): 1-11.
[4] MOHAMMADIHA O, GHARIBLU H. Optimal shape design of functionally graded thickness inversion tubes subjected to oblique loading [J]. Structural and Multidisciplinary Optimization, 2017, 56(3): 587-601.
[5] SUN G Y, XU F X, LI G Y, et al. Crashing analysis and multiobjective optimization for thin-walled structures with functionally graded thickness [J]. International Journal of Impact Engineering, 2014, 64: 62-74.
[6] LI G Y, XU F X, SUN G Y, et al. Crashworthiness study on functionally graded thin-walled structures [J]. International Journal of Crashworthiness, 2015, 20(3): 280-300.
[7] LI G Y, XU F X, SUN G Y, et al. A comparative study on thin-walled structures with functionally graded thickness (FGT) and tapered tubes withstanding oblique impact loading [J]. International Journal of Impact Engineering, 2015, 77: 68-83.
[8] BAYKASOGLU C, BAYKASOGLU A, CETIN M T. A comparative study on crashworthiness of thin-walled tubes with functionally graded thickness under oblique impact loadings [J]. International Journal of Crashworthiness, 2019, 24(4): 453-471.
[9] PANG T, ZHENG G, FANG J G, et al. Energy absorption mechanism of axially-varying thickness (AVT) multicell thin-walled structures under out-of-plane loading [J]. Engineering Structures, 2019, 196: 1-17.
[10] CHEN Y F, BAI Z H, ZHANG L W, et al. Crashworthiness analysis of octagonal multi-cell tube with functionally graded thickness under multiple loading angles [J]. Thin-Walled Structures, 2017, 110: 133-139.
[11] ZHANG X, WEN Z Z, ZHANG H. Axial crushing and optimal design of square tubes with graded thickness [J]. Thin-Walled Structures, 2014, 84: 263-274.
[12] FANG J G, GAO Y K, SUN G Y, et al. Dynamic crashing behavior of new extrudable multi-cell tubes with a functionally graded thickness [J]. International Journal of Mechanical Sciences, 2015, 103: 63-73.
[13] QIN R X, ZHOU J X, CHEN B Z. Crashworthiness design and multiobjective optimization for hexagon honeycomb structure with functionally graded thickness [J]. Advances in Materials Science and Engineering, 2019, 2019: 1-13.
[14] SUN G Y, TIAN X Y, FANG J G, et al. Dynamical bending analysis and optimization design for functionally graded thickness (FGT) tube. International Journal of Impact Engineering. 2015, 78: 128-137.
[15] WIERZBICKI T, ABRAMOWICZ W. On the crushing mechanics of thin-walled structures [J]. Journal of Applied Mechanics, 1983, 50: 727-734.
[16] YAMASHITA M, GOTOH M, SAWAIRI Y. Axial crush of hollow cylindrical structures with various polygonal cross-sections [J]. Journal of Materials Processing Technology, 2003, 140: 59-64.
[17] TANG Z, LIU S T, ZHANG Z H. Energy absorption properties of non-convex multi-corner thin-walled columns [J]. Thin-Walled Structures, 2012, 51: 112-120.
[18] FAN Z, LU G X, LIU K. Quasi-static axial compression of thin-walled tubes with different cross-sectional shapes [J]. Engineering Structures, 2013, 55: 80-89.
[19] LIU W Y, LIN Z Q, WANG N N, et al. Dynamic performances of thin-walled tubes with star-shaped cross section under axial impact [J]. Thin-Walled Structures, 2016, 100: 25-37.
[20] DENG X L, LIU W Y, LIN Z Q. Experimental and theoretical study on crashworthiness of star-shaped tubes under axial compression [J]. Thin-Walled Structures, 2018, 130: 321-331.
[21] WU S Y, SUN G Y, WU X, et al. Crashworthiness analysis and optimization of fourier varying section tubes [J]. International Journal of Non-Linear Mechanics, 2017, 92: 41-58.
[22] NIA A A, CHAHARDOLI S. Mechanical behavior of nested multi-tubular structures under quasi-static axial load [J]. Thin-Walled Structures, 2016, 106: 376-389.
[23] FANG J G, GAO Y K, SUN G Y, et al. Parametric analysis and multiobjective optimization for functionally graded foam-filled thin-wall tube under lateral impact [J]. Computational Materials Science, 2014, 90: 265-275.
[24] ZHANG X, ZHANG H. Some problems on the axial crushing of multi-cells [J]. International Journal of Mechanical Sciences, 2015, 103: 30-39.
[25] LIU W Y, JIN L, LUO Y Q, et al. Multi-objective crashworthiness optimisation of tapered star-shaped tubes under oblique impact [J]. International Journal of Crashworthiness, 2020, 1: 1-15.
[26] XU F X, TIAN X Y, LI G Y. Experimental study on crashworthiness of functionally graded thickness thin-walled tubular structures [J]. Experimental Mechanics, 2015, 55(7): 1339-1352.
[27] DENG X L, QIN S G, HUANG J L. Energy absorption characteristics of axially varying thickness lateral corrugated tubes under axial impact loading [J]. Thin-Walled Structures, 2021, 163: 1-27.
[28] DENG X L, LIU W Y. Multi-objective optimization of thin-walled sandwich tubes with lateral corrugated tubes in the middle for energy absorption [J]. Thin-Walled Structures, 2019, 137: 303-317.
[29] DENG X L, LIU W Y. Crashworthiness research and optimisation design of sandwich multi-cell conical tube under axial impact [J]. International Journal of Materials and Structural Integrity, 2017, 11(1/2/3): 82-105.
|
|
|
|
