Deformation and energy absorption characteristic of Al2O3f/Zn–Al composite foams during compression

TRIP steel possesses high strength and excellent ductility. In addition, it is possible that TRIP steel indicates high energy absorption so that TRIP steel is expected to apply to automotive members. To design the members made of TRIP steel, it is important to clarify its energy absorption characteristic at various deformation rates. In the previous study, the energy absorption characteristic of TRIP steel is evaluated by J-integral under quasi-static to dynamic condition by using a thick specimen based on ASTM standard. However, by using such thick specimens, it is difficult to conduct the three-point bending test under impact condition because of high ductility in TRIP steel. A small punch (SP) test is the experimental method which can evaluate fracture parameters such as J-integral. By using a conventional use of small specimen in the SP test, it is possible to evaluate J-integral of TRIP steel under impact deformation. In this study, energy absorption characteristic of TRIP steel is investigated by SP test under different deflection rates. Then, the relationship between the values of J-integral obtained by previously conducted three-point bending test and the SP test of TRIP steel is discussed.

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Experimental Research on Energy Absorption Characteristic of PVB Laminated Windshield Subjected to Headform Low-speed Impact

Journal of Mechanical Engineering ◽

10.3901/jme.2013.22.128 ◽

2013 ◽

Vol 49 (22) ◽

pp. 128 ◽

Cited By ~ 2

Author(s):

Bohan LIU

Keyword(s):

Energy Absorption ◽

Experimental Research ◽

Absorption Characteristic ◽

Low Speed

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Energy absorption of cast metal and composite foams tested in extremely low and high-temperatures

Materials & Design ◽

10.1016/j.matdes.2020.109114 ◽

2020 ◽

Vol 196 ◽

pp. 109114 ◽

Cited By ~ 1

Author(s):

Paweł Kaczyński ◽

Mariusz Ptak ◽

Katarzyna Gawdzińska

Keyword(s):

Energy Absorption ◽

High Temperatures ◽

Cast Metal ◽

Composite Foams

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An investigation on rate sensitivity of energy absorption characteristic during tensile deformation with pre-cracked thin specimens made of TRIP steel by finite element analysis and experiment

The Proceedings of Conference of Chugoku-Shikoku Branch ◽

10.1299/jsmecs.2018.56.207 ◽

2018 ◽

Vol 2018.56 (0) ◽

pp. 207

Author(s):

Shiguma YOSHIDA ◽

Ryusuke MAENAKA ◽

Yuya OONISH ◽

Takeshi IWAMOTO

Keyword(s):

Finite Element Analysis ◽

Finite Element ◽

Energy Absorption ◽

Trip Steel ◽

Tensile Deformation ◽

Rate Sensitivity ◽

Absorption Characteristic ◽

Element Analysis

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Analysis and Application of the Impact Absorption Behavior of the Composite Tube

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.470.510 ◽

2013 ◽

Vol 470 ◽

pp. 510-515

Author(s):

Zi Peng Zhang ◽

Gui Fan Zhao ◽

Tso Liang Teng ◽

Yang Wang

Keyword(s):

Energy Absorption ◽

Absorption Characteristic ◽

Beam Model ◽

Velocity Signal ◽

Composite Tube ◽

Acceleration Signal ◽

Displacement Signal ◽

Drop Weight Tear Test ◽

Composite Energy ◽

The Impact

Composite tube is one new kind of multi-material shell structures. It has both of metal and composite energy absorption advantage. In order to find the energy absorption characteristic of composite tube and put it into use, the Drop-Weight Tear Test (DWTT) was carried out. The LD2Y aluminum was chosen as the inner metal material which was wrapped fiberglass epoxy composite outside. During the test, the displacement signal and velocity signal, acceleration signal were got by piezoelectric acceleration transducer. Furthermore, the DWTT test of the composite tube was simulated in LS-DYNA, and proved the validity of the model by comparing the simulation results with the experiment results. We established the vehicle front longitudinal beam model with the material type of the composite tube, and carried out the simulations of whole car collisions in LS-DYNA according to FMVSS 208. Through the analysis of occupant head injury got from the simulations, we got the result that using the composite tube material could not only elevate the cars safety but also reduce front longitudinal beam weight effectively.

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