Impact damage behavior of lightweight CFRP protection suspender on railway vehicles

Jian Jiang; Zhifang Zhang; Jiyang Fu; Karthik Ram Ramakrishnan; Caizheng Wang; Hongxu Wang

doi:10.1016/j.matdes.2021.110332

Impact damage behavior of lightweight CFRP protection suspender on railway vehicles

Jian Jiang^*, Zhifang Zhang^*, Jiyang Fu^*, Karthik Ram Ramakrishnan^*, Caizheng Wang^*, Hongxu Wang^*

^*Corresponding author for this work

Bristol Composites Institute

Research output: Contribution to journal › Article (Academic Journal) › peer-review

14 Citations (Scopus)

111 Downloads (Pure)

Abstract

The lightweight design of railway vehicle components using fiber reinforced polymers (FRPs) has become a research hotspot due to the strong need for energy saving and environmental protection. This paper aims to evaluate the impact damage behavior of a carbon fiber reinforced polymers (CFRP) protection suspender, which is a component on railway vehicles to prevent the falling joist and bolster from touching the rails and to avoid the derailment of trains. A finite element (FE) model of the CFRP protection suspender, which considered varying bolt preloads was established in ABAQUS/Explicit. The bolt preload was successfully applied around the installation holes on the protection suspender by deliberately reducing the local temperature of the bolt shank to create shrinkage. The impact behavior of the protection suspender was then analyzed, and the impact-induced damage was governed by the Continuum Damage Mechanics (CDM) models, which include both intra-laminar damage and inter-laminar damage. The low-velocity impact response of the CFRP protection suspender was investigated with the lay-ups of [0]₁₀ and [0/90/0/90/0]_S under different bolt preloads (i.e. 0, 5 and 20 kN). The results showed that the vulnerable positions of the protection suspenders included the contact edge between the protection suspender and the impactor, the curved corner of the suspender, and the areas around the bolt holes. In addition, the protection suspender with the lay-up of [0]₁₀ had better impact resistance than that with the lay-up of [0/90/0/90/0]_S. By applying different preloads, it showed that the increase of bolt preloads could help to prevent the occurrence of crack damage around the installation holes, thus improving the structural safety when subjected to low-velocity impact. The present simulation results offered great value for the lightweight design and structural optimization of a protection suspender on railway vehicles that had to survive from sudden impact loads in service.

Original language	English
Article number	110332
Number of pages	15
Journal	Materials and Design
Volume	213
Early online date	20 Dec 2021
DOIs	https://doi.org/10.1016/j.matdes.2021.110332
Publication status	Published - 1 Jan 2022

Bibliographical note

Funding Information:
The research has been supported by the Natural Science Foundation of Guangdong Province, China (Grant No. 2019A1515011116 ), the National Natural Science Foundation of China (Grant No. 51508118 ), 111 Project (Grant No. D21021 ) and the Municipal Science and Technology Planning Project of Guangzhou (Grant No. 20212200004 ).

Publisher Copyright:
© 2021 The Authors

Keywords

Bolt preload
Fiber reinforced polymer
Finite element analysis
Lightweight design
Low-velocity impact
Protection suspender

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10.1016/j.matdes.2021.110332

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title = "Impact damage behavior of lightweight CFRP protection suspender on railway vehicles",

abstract = "The lightweight design of railway vehicle components using fiber reinforced polymers (FRPs) has become a research hotspot due to the strong need for energy saving and environmental protection. This paper aims to evaluate the impact damage behavior of a carbon fiber reinforced polymers (CFRP) protection suspender, which is a component on railway vehicles to prevent the falling joist and bolster from touching the rails and to avoid the derailment of trains. A finite element (FE) model of the CFRP protection suspender, which considered varying bolt preloads was established in ABAQUS/Explicit. The bolt preload was successfully applied around the installation holes on the protection suspender by deliberately reducing the local temperature of the bolt shank to create shrinkage. The impact behavior of the protection suspender was then analyzed, and the impact-induced damage was governed by the Continuum Damage Mechanics (CDM) models, which include both intra-laminar damage and inter-laminar damage. The low-velocity impact response of the CFRP protection suspender was investigated with the lay-ups of [0]10 and [0/90/0/90/0]S under different bolt preloads (i.e. 0, 5 and 20 kN). The results showed that the vulnerable positions of the protection suspenders included the contact edge between the protection suspender and the impactor, the curved corner of the suspender, and the areas around the bolt holes. In addition, the protection suspender with the lay-up of [0]10 had better impact resistance than that with the lay-up of [0/90/0/90/0]S. By applying different preloads, it showed that the increase of bolt preloads could help to prevent the occurrence of crack damage around the installation holes, thus improving the structural safety when subjected to low-velocity impact. The present simulation results offered great value for the lightweight design and structural optimization of a protection suspender on railway vehicles that had to survive from sudden impact loads in service.",

keywords = "Bolt preload, Fiber reinforced polymer, Finite element analysis, Lightweight design, Low-velocity impact, Protection suspender",

author = "Jian Jiang and Zhifang Zhang and Jiyang Fu and Ramakrishnan, \{Karthik Ram\} and Caizheng Wang and Hongxu Wang",

note = "Funding Information: The research has been supported by the Natural Science Foundation of Guangdong Province, China (Grant No. 2019A1515011116 ), the National Natural Science Foundation of China (Grant No. 51508118 ), 111 Project (Grant No. D21021 ) and the Municipal Science and Technology Planning Project of Guangzhou (Grant No. 20212200004 ). Publisher Copyright: {\textcopyright} 2021 The Authors",

year = "2022",

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doi = "10.1016/j.matdes.2021.110332",

language = "English",

volume = "213",

journal = "Materials and Design",

issn = "0264-1275",

publisher = "Elsevier Limited",

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T1 - Impact damage behavior of lightweight CFRP protection suspender on railway vehicles

AU - Jiang, Jian

AU - Zhang, Zhifang

AU - Fu, Jiyang

AU - Ramakrishnan, Karthik Ram

AU - Wang, Caizheng

AU - Wang, Hongxu

N1 - Funding Information: The research has been supported by the Natural Science Foundation of Guangdong Province, China (Grant No. 2019A1515011116 ), the National Natural Science Foundation of China (Grant No. 51508118 ), 111 Project (Grant No. D21021 ) and the Municipal Science and Technology Planning Project of Guangzhou (Grant No. 20212200004 ). Publisher Copyright: © 2021 The Authors

PY - 2022/1/1

Y1 - 2022/1/1

N2 - The lightweight design of railway vehicle components using fiber reinforced polymers (FRPs) has become a research hotspot due to the strong need for energy saving and environmental protection. This paper aims to evaluate the impact damage behavior of a carbon fiber reinforced polymers (CFRP) protection suspender, which is a component on railway vehicles to prevent the falling joist and bolster from touching the rails and to avoid the derailment of trains. A finite element (FE) model of the CFRP protection suspender, which considered varying bolt preloads was established in ABAQUS/Explicit. The bolt preload was successfully applied around the installation holes on the protection suspender by deliberately reducing the local temperature of the bolt shank to create shrinkage. The impact behavior of the protection suspender was then analyzed, and the impact-induced damage was governed by the Continuum Damage Mechanics (CDM) models, which include both intra-laminar damage and inter-laminar damage. The low-velocity impact response of the CFRP protection suspender was investigated with the lay-ups of [0]10 and [0/90/0/90/0]S under different bolt preloads (i.e. 0, 5 and 20 kN). The results showed that the vulnerable positions of the protection suspenders included the contact edge between the protection suspender and the impactor, the curved corner of the suspender, and the areas around the bolt holes. In addition, the protection suspender with the lay-up of [0]10 had better impact resistance than that with the lay-up of [0/90/0/90/0]S. By applying different preloads, it showed that the increase of bolt preloads could help to prevent the occurrence of crack damage around the installation holes, thus improving the structural safety when subjected to low-velocity impact. The present simulation results offered great value for the lightweight design and structural optimization of a protection suspender on railway vehicles that had to survive from sudden impact loads in service.

AB - The lightweight design of railway vehicle components using fiber reinforced polymers (FRPs) has become a research hotspot due to the strong need for energy saving and environmental protection. This paper aims to evaluate the impact damage behavior of a carbon fiber reinforced polymers (CFRP) protection suspender, which is a component on railway vehicles to prevent the falling joist and bolster from touching the rails and to avoid the derailment of trains. A finite element (FE) model of the CFRP protection suspender, which considered varying bolt preloads was established in ABAQUS/Explicit. The bolt preload was successfully applied around the installation holes on the protection suspender by deliberately reducing the local temperature of the bolt shank to create shrinkage. The impact behavior of the protection suspender was then analyzed, and the impact-induced damage was governed by the Continuum Damage Mechanics (CDM) models, which include both intra-laminar damage and inter-laminar damage. The low-velocity impact response of the CFRP protection suspender was investigated with the lay-ups of [0]10 and [0/90/0/90/0]S under different bolt preloads (i.e. 0, 5 and 20 kN). The results showed that the vulnerable positions of the protection suspenders included the contact edge between the protection suspender and the impactor, the curved corner of the suspender, and the areas around the bolt holes. In addition, the protection suspender with the lay-up of [0]10 had better impact resistance than that with the lay-up of [0/90/0/90/0]S. By applying different preloads, it showed that the increase of bolt preloads could help to prevent the occurrence of crack damage around the installation holes, thus improving the structural safety when subjected to low-velocity impact. The present simulation results offered great value for the lightweight design and structural optimization of a protection suspender on railway vehicles that had to survive from sudden impact loads in service.

KW - Bolt preload

KW - Fiber reinforced polymer

KW - Finite element analysis

KW - Lightweight design

KW - Low-velocity impact

KW - Protection suspender

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U2 - 10.1016/j.matdes.2021.110332

DO - 10.1016/j.matdes.2021.110332

M3 - Article (Academic Journal)

AN - SCOPUS:85121915719

SN - 0264-1275

VL - 213

JO - Materials and Design

JF - Materials and Design

M1 - 110332

ER -

Impact damage behavior of lightweight CFRP protection suspender on railway vehicles

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