composite material crushing

Modeling and Characterization of Crushable Composite

2022.12.13 I. Introduction. Composites are one of the versatile materials used heavily in aerospace and automotive industries these days under normal and extreme conditions. The energy absorption capability during crushing can help prevent the severe impact

Axial quasi-static crushing of composite tubes: An

2023.10.23 During axial crushing, composite tubes exhibited a splaying crushing mode that can be characterized with transverse tears, inwards and outwards fronds.

Analysis of Crushing Response of Composite Crashworthy

2012.11.28 The increase usage of polymer composite materials in the aerospace and automotive industry has generated considerable interest in using composite materials for

Crush characteristics of flat-plate discontinuous carbon composites

2021.8.1 This material belongs to the family of chopped carbon fiber reinforced sheet molding compounds. The material components used here are 12 k polyacrylonitrile

Axial crushing response of carbon/glass hybrid composite

2022.8.15 This study aimed to investigate the energy-absorbing mechanisms of composite structures subjected to quasi-static and dynamic axial crushing loads. Double

Crush simulations of composite energy absorbing structural

2022.12.1 While the accurate modeling of damage in a composite simulation is critical, element erosion criteria are also still required in crush simulations. As damage

Development of a 3D finite element model at mesoscale for the crushing ...

2022.5.1 This paper presents the development of a new finite element model for the simulation of UD composites materials under crushing, at the mesoscale. It is a 3D

Numerical Modeling for Progressive Crushing of Composite

First Online: 01 July 2022 913 Accesses 1 Citations Part of the The Minerals, Metals Materials Series book series (MMMS) Abstract In this present study, the numerical

Axial crush simulation of composites using continuum

2021.11.15 This paper investigates three different CDM-based models within two commercial FE software packages to identify common software-independent capabilities,

Numerical simulation of the crushing process of composite materials ...

2010.7.8 Components in composite materials are progressively replacing metals for crashworthy applications in the automotive, railway and aeronautical industries. The

Finite element modeling of crushing of CFRP cylindrical tubes

2022.1.15 1. Introduction. Composite materials like CFRPs, Carbon Fiber-Reinforced Plastics, are more expensive than conventional metals, however, their superior energy absorption per weight (SEA), has been proved to be beneficial in substituting heavy metallic absorbers with lighter composite ones, specially in the automotive and aerospace

Crush simulations of composite energy absorbing structural

2022.12.1 A recently developed material model for orthotropic composites is demonstrated by modeling an energy absorbing crush event used in the development of automotive components. The material model (MAT213) provides a wide variety of capabilities such as tension/compression asymmetric behavior, visco-elastic/plastic

中低速压缩加载下不同截面构型复合材料薄壁结构吸能特性及 ...

2021.8.17 为研究开剖面复合材料薄壁吸能结构的吸能特性，基于高速液压伺服试验系统，开展了开剖面复合材料薄壁结构轴向压缩试验，分析了截面构型、截面长宽比、触发模式及加载速度对其吸能特性的影响，揭示了其在压溃过程中的失效及吸能机理。

Analysis of Crushing Response of Composite Crashworthy

2012.11.28 1 Introduction. The increase usage of polymer composite materials in the aerospace and automotive industry has generated considerable interest in using composite materials for crashworthy structures that have the ability to absorb impact energy through a controlled failure in progressive crushing. By tailoring the fibre type, matrix type, fibre ...

Crush testing approach for flat-plate fibrous materials

2020.11.1 The presented crush testing test is used to determine the energy absorption behavior of the material when crushing fully-supported flat-plate specimens of different crushing widths. The approach is to simply isolate the inadvertently included splitting force and deduct it from the measured result. Fig. 6 shows two different stages

Finite element modelling of composite structures under crushing

2015.11.1 The complexity of composite crushing invariably results in highly localised and rapid load redistribution and consequently the damage process needs to take into account the loading history on the material. Much of the existing techniques do not properly account for the effect of loading/unloading and load reversal, particularly for the ...

高分子基功能复合材料的熔融沉积成型研究进展 - buaa.cn

2020.12.16 冯东, 王博, 刘琦, 等. 高分子基功能复合材料的熔融沉积成型研究进展 [J]. 复合材料学报, 2021, 38 (5): 1371-1386. doi: 10.13801/j.cnki.fhclxb.20201216.002. Citation: FENG Dong, WANG Bo, LIU Qi, et al. Research progress in manufacturing multifunctional polymer composite materials based on fused deposition modeling ...

任毅如_高校科技成果转化对接服务平台

2021.12.31 Composite Materials, 2020, 27(1-2), 55-74. [8]Hongyong Jiang, Yiru Ren*, Jianqiang Zheng. ... Crashworthiness and failure analysis of steeple-triggered hat-shaped composite structure under the axial and oblique crushing load,

Using Experimental Data to Improve Crash Modeling for Composite Materials

2013.1.1 Usually, if the element size is considered to be equal to the thickness of the part, this issue yields improvement in the accuracy of the crash simulation for the composite materials. Fig. 23.1. ( a) Finite Element (FE) model of the crash tube in first approach, ( b) FE Model of the crash tube in the second approach. Full size image.

Sensitivity Analysis of Material Model Parameters to Reproduce Crushing ...

2019.4.26 The ability to predict the behavior of composite structures under impact conditions is an important challenge for engineering analysis since it requires modeling beyond the elasticity and into failure initiation and propagation. Crushing of laminate composites is the result of a combination of several and complex failure mechanisms,

Predicting the axial crush response of CFRP tubes using

2018.8.1 McGregor et al. [18], [19] investigated the applicability of a continuum damage mechanics-based material model CODAM (implemented in LS-DYNA as MAT219) for modeling of axial crushing of braided composite tubes. The material model uses a sub-laminate rather than a common ply-by-ply representation of composite and, thus,

Axial crushing response of carbon/glass hybrid composite

2022.8.15 The choice for a proper external trigger and fiber hybridization configuration has a significant impact on the stability of the crushing process and material cost for composite structures in crashworthiness. However, there is still a lack of a thorough understanding of impact characteristics and energy-absorption mechanisms.

李健-交通运输工程学院门户网站 - Central South University

2022.3.30 个人简介李健，中南大学教授，博士研究生导师，获以色列理工学院工学博士学位，先后于加州理工学院、麻省理工学院从事研究工作，2021.入选国家高层次青.人才计划。. 主要研究方向为列车撞击安全保护、结构屈曲、软生物材料损伤。. 获得中国铁道学

Assessing the current modelling approach for predicting the ...

2020.11.15 The choice for a proper external trigger and fiber hybridization configuration has a significant impact on the stability of the crushing process and material cost for composite structures in crashworthiness. However, there is still a lack of a thorough understanding of impact characteristics and energy-absorption mechanisms.

Impact Testing on the Pristine and Repaired Composite Materials

2023.4.12 Materials for aerostructures require vigorous testing to ensure they can withstand the range of conditions an aircraft is exposed to. With areas such as static bending and free vibration response of materials for this application, including composite panels, having been widely investigated [1,2,3,4,5].A specific area of interest is the impact

Development of a numerical material model for axial crushing

2019.12.15 For metallic materials, capability of energy absorption mainly comes from plastic deformation of structures, while composites show higher SEA values due to fragmentation and destruction of materials [14]. During the crushing process of composite structures, materials fail through continuous fracture propagation and energy dissipation

复合材料吸能圆管在半圆凹槽触发机制下的斜向压溃失效行为

2021.6.17 邓亚斌, 任毅如, 蒋宏勇. 复合材料吸能圆管在半圆凹槽触发机制下的斜向压溃失效行为 [J]. 复合材料学报, 2022, 39 (4): 1790-1797. doi: 10.13801/j.cnki.fhclxb.20210617.002. Citation: DENG Yabin, REN Yiru, JIANG Hongyong. Oblique crushing failure behaviors of composite energy-absorbing circular tube under the ...

Crashworthiness characteristics of composite cylindrical

2022.7.15 where E T is the absorbed energy by the whole system, E SH is the absorbed energy by the cylindrical composite tube, E H is the absorbed energy by the honeycomb, and E F is the energy absorbed by the foam. In the subsequent section, the energy absorbed by each component is discussed. 2.1 Composite shell. While crushing

Finite Element Modelling Approach for Progressive Crushing of Composite ...

Robust finite element models are utilised for their ability to predict simple to complex mechanical behaviour under certain conditions at a very low cost compared to experimental studies, as this reduces the need for physical prototypes while allowing for the optimisation of components. In this paper, various parameters in finite element techniques were

周期性轻质多孔结构在能量吸收和振动方面的研究进展 - SJTU

对近.来周期性超轻多孔结构及其填充混杂复合结构在能量吸收和振动性能方面的研究情况进行了综述。. 首先概述了超轻多孔结构在减振和抗冲击性能方面优势明显的胞元及结构形式；对于能量吸收方面，重点从准静态载荷、冲击载荷和应用三个角度评述了 ...