Evaluating the mechanical properties of a CFRP tube under a lateral impact load using the split Hopkinson bar

Taniguchi, Norihiko; Kawada, Hiroyuki

doi:10.1163/1568551054922601

Cited by 7 publications

(7 citation statements)

References 9 publications

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“…2(a). In order to control the fluctuating behavior during tensile loading, a piece of brass (outer and inner diameters: 22.0 mm and 16.2 mm, thickness: 1.0-5.0 mm) is sandwiched between the cylindrical striker and input bar [2]. The data obtained from the SHB method comprise the strain histories of the input and output bars.…”

Section: Experimental Methodsmentioning

confidence: 99%

“…Therefore, they have been widely used not only in the aerospace industry but also to manufacture sports gear. In order to create practical designs of CFRP laminates for a variety of sports gear, it is essential that they possess excellent mechanical properties under a dynamic load [1,2]. Nevertheless, it is quite difficult to experimentally determine these properties, such as the modulus and strength.…”

Section: Introductionmentioning

confidence: 99%

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Tensile strength of unidirectional CFRP laminate under high strain rate

Taniguchi¹,

Nishiwaki²,

Kawada

2007

Advanced Composite Materials

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112

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The tensile strength of unidirectional carbon fiber reinforced plastics under a high strain rate was experimentally investigated. A high-strain-rate test was performed using the tension-type split Hopkinson bar technique. In order to obtain the tensile stress-strain relations, a special fixture was used for the impact tensile specimen. The experimental results demonstrated that the tensile modulus and strength in the longitudinal direction are independent of the strain rate. In contrast, the tensile properties in the transverse direction and the shear properties increase with the strain rate. Moreover, it was observed that the strain-rate dependence of the shear strength is much stronger than that of the transverse strength. The tensile strength of off-axis specimens was measured using an oblique tab, and the experimental results were compared with the tensile strength predicted based on the Tsai-Hill failure criterion. It was concluded that the tensile strength can be characterized quite well using the above failure criterion under dynamic loading conditions.

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Section: Experimental Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Tensile strength of unidirectional CFRP laminate under high strain rate

Taniguchi¹,

Nishiwaki²,

Kawada

2007

Advanced Composite Materials

Self Cite

112

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“…Several authors have observed a change from splitting (or delamination) to fragmentation in composites loaded using compression SHPBs as the loading rate (and stress) increases [13,94]. Taniguchi et al impacted hollow composite tubes sideon, and observed differences in the fracture surfaces [303]: At high rates, failure appeared to occur mostly within the matrix, rather than jumping between the matrix/fibre boundaries (Fig. 23).…”

Section: Damage Failure and Energymentioning

confidence: 97%

Measuring the Effect of Strain Rate on Deformation and Damage in Fibre-Reinforced Composites: A Review

Perry

Walley

2022

J. dynamic behavior mater.

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This review aims to assess publications relevant to understanding the rate-dependent dynamic behaviour of glass- and carbon-fibre reinforced polymer composites (FRPs). FRPs are complex structures composed of fibres embedded in a polymer matrix, making them highly anisotropic. Their properties depend on their constituent materials as well as micro-, meso- and macro-scale structure. Deformation proceeds via a variety of damage mechanisms which degrade them, and failure can occur by one or more different processes. The damage and failure mechanisms may exhibit complex and unpredictable rate-dependence, with certain phenomena only observable under specific loading conditions or geometries. This review focusses on experimental methods for measuring the rate-dependent deformation of fibre composites: it considers high-stain-rate testing of both specimens of ‘simple’ geometry as well as more complex loadings such as joints, ballistic impact and underwater blast. The effects of strain rate on damage and energy-based processes are also considered, and several scenarios identified where strength and toughness may substantially decrease with an increase in strain rate.

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“…The recent scientific literature concerning quasi-static bending of bars considers special loadings conditions such as follower loads [1], inhomogeneous materials and complex geometry [2], or complex loading conditions [3]. Dynamic conditions are considered in the analysis of fracture in pre-notched bars of composite materials undergoing bending [4,5]; or axial loading of composite tubes in the Hopkinson bar [6]; or fast and slow bending of ferrous alloys [7]. In such approaches the strain rate dependence is neglected or strongly simplified.…”

mentioning

confidence: 99%

“…In such approaches the strain rate dependence is neglected or strongly simplified. In most of the cases, the dynamic conditions induce very high strain rates [6,8], and a scarce experimental literature can be found that deals with intermediate strain rates [9,10].…”

mentioning

confidence: 99%