Compressive property and energy absorption characteristic of open-cell ZA22 foams

2009 ◽  
Vol 30 (1) ◽  
pp. 87-90 ◽  
Author(s):  
Sirong Yu ◽  
Jiaan Liu ◽  
Ming Wei ◽  
Yanru Luo ◽  
Xianyong Zhu ◽  
...  
Keyword(s):  
Energy Absorption ◽  
Compressive Property ◽  
Absorption Characteristic ◽  
Open Cell

The Compressive Properties of Open-Cell Zn-22Al Foams with Spheroidal Pore at Different Temperatures

2018 ◽  
Vol 933 ◽  
pp. 196-202
Author(s):  
Jia An Liu ◽  
Qing Xiang Qu ◽  
Zhao Bin Zheng ◽  
Tian Yao Zhang
Keyword(s):  
Yield Stress ◽  
Energy Absorption ◽  
Relative Yield ◽  
Testing Temperature ◽  
Compressive Property ◽  
Absorption Characteristic ◽  
Compressive Properties ◽  
Replication Process ◽  
Open Cell ◽  
Different Temperatures

Open-cell Zn-22Al foams with different porosities were fabricated by replication process using spheroidal CaCl2 particles as space holder. A series of compressive tests were carried out at different temperatures (i.e., room temperature, 100 °C and 200 °C). The effect of porosity and testing temperature on compressive property and energy absorption characteristic of Zn-22Al foams were studied. The experimental results showed that the compressive properties of the foams are dependent on porosity and testing temperature: the compressive yield stress decreases with the increasing testing temperature and the porosity; In addition, the energy absorption capacity also decreases with the increasing temperature and porosity; Moreover, Gibson-Ashby model can be used to describe the relationship between relative yield stress and relative density of the foams.

Compressive property and energy absorption characteristic of open-cell SiCp/AlSi9Mg composite foams

2010 ◽  
Vol 499 (2) ◽  
pp. 227-230 ◽  
Author(s):  
Yanru Luo ◽  
Sirong Yu ◽  
Jiaan Liu ◽  
Xianyong Zhu ◽  
Yanhe Luo
Keyword(s):  
Energy Absorption ◽  
Compressive Property ◽  
Absorption Characteristic ◽  
Open Cell ◽  
Composite Foams

scholarly journals Compressive Property of an Auxetic-Knitted Composite Tube Under Quasi-Static Loading

2020 ◽  
Vol 20 (2) ◽  
pp. 101-109 ◽  
Author(s):  
Andrews Boakye ◽  
Rafui King Raji ◽  
Pibo Ma ◽  
Honglian Cong
Keyword(s):  
Energy Absorption ◽  
Compression Test ◽  
Impact Loading ◽  
Static Loading ◽  
Fiber Content ◽  
Compressive Property ◽  
Static Compression ◽  
Arrow Head ◽  
Composite Tube ◽  
Quasi Static Compression

AbstractThis research investigates the compressive property of a novel composite based on a weft-knitted auxetic tube subjected to a quasi-static compression test. In order to maximize the influence of the fiber content on the compression test, a Kevlar yarn was used in knitting the tubular samples using three different auxetic arrow-head structures (i.e. 4 × 4, 6 × 6 and 8 × 8 structure). A quasi-static compression test was conducted under two different impact loading speeds (i.e. 5 mm/min and 15 mm/min loading speed). The results indicate that the energy absorption (EA) property of the auxetic composite is highly influenced by the auxeticity of the knitted tubular fabric.

An Experimental Evaluation of Energy Absorption of TRIP Steel by Small Punch Test

2016 ◽  
Vol 725 ◽  
pp. 60-65
Author(s):  
Asuka Hayashi ◽  
Takeshi Iwamoto
Keyword(s):  
Energy Absorption ◽  
Trip Steel ◽  
Dynamic Condition ◽  
High Strength ◽  
High Energy ◽  
Bending Test ◽  
Absorption Characteristic ◽  
Small Punch ◽  
Three Point Bending ◽  
Punch Test

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.

Energy Absorption Efficiency of Open-Cell Carbon Foams

2018 ◽  
Vol 933 ◽  
pp. 323-329
Author(s):  
Fumi Asai ◽  
Hiroshi Fukazawa ◽  
Koichi Kitazono
Keyword(s):  
Strain Rate ◽  
Energy Absorption ◽  
Dynamic Compression ◽  
Indentation Test ◽  
Absorption Efficiency ◽  
Plateau Region ◽  
Open Cell ◽  
Energy Absorption Efficiency ◽  
Carbon Foams ◽  
Cell Carbon

Energy absorbing properties of open-cell carbon foams were evaluated by quasi-static and dynamic compression tests. Though carbon foams show brittle deformation behaviors, they have wide plateau region. The plateau stress linearly increases with increasing the relative density. Furthermore, the strain rate sensitivity is 0.03 and 0.15 at low and high strain rate region, respectively. Indentation tests were performed on cylindrical sample having porosity of 92.3 to 92.8% with different impact speeds. No plateau region is observed and macro cracks occur in the high speed indentation test. The energy absorption efficiency of carbon foams is higher than that of conventional aluminum foams because of their wide plateau regions.

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