A novel method for measuring direct compressive properties of carbon fibres using a micro-mechanical compression tester

Sato, Takashi; Saito, Fumitoshi; Tomioka, T.; Arai, Yutaka

doi:10.1007/bf00356404

Cited by 30 publications

(6 citation statements)

References 5 publications

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“…The small diameter of the basalt fibres, which is usually less than 20 μm, causes difficulty in measuring the axial compressive strength. Several techniques have been proposed including the loop test 10 , the recoil test [11][12][13] , the micro-compression test [14][15][16][17] , compression test of a singlefibre composite 9,18 and estimation from the compressive strength of a unidirectional composite.…”

Section: Introductionmentioning

confidence: 99%

Compressive Property of Basalt Fiber in Composite with Nano-indentation

Tong

Zhou

Wang

2011

Polymers and Polymer Composites

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The compressive property of a single basalt fiber in basalt/epoxy and basalt/PCBT composite was investigated by nano-indentation with the application of conical-pyramidal Berkovich tip. The nano-indentation test involved a load from 30 mn to 200 mn. Every indent was produced on section of a single fiber. Area function was selected according to the depth of the indent. The results showed that compressive modulus and hardness of basalt fiber is higher than those of glass fiber and carbon fiber in the same matrix. The modulus of basalt fiber behave differently when embed in different matrixes.

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Section: Introductionmentioning

confidence: 99%

Compressive Property of Basalt Fiber in Composite with Nano-indentation

Tong

Zhou

Wang

2011

Polymers and Polymer Composites

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“…The cross‐section of carbon fiber (Figure 5B) exhibited typical compressive failure of sheer mode. [ 21 ] At high adhesive thickness of 0.117 mm, low‐test results (2401 MPa) implied complex failure mode (Figure 5C) due to local lateral internal stress during curing of the resin. To obtain accurate testing results using the fixture in this study, the appropriate adhesive thickness is to be set at 0.101 to 0.110 mm.…”

Section: Resultsmentioning

confidence: 99%

“…[17] Ueda et al used direct scanning electron microscope to observe of the compression failure behavior of carbon fiber, and structure and compression performance was established. [18][19][20] The axial compressive performance of carbon fiber was usually measured using monofilament, [21,22] including tensile recoil measurement, [23,24] elastic ring method, [25] bending beam method, and micro force compression. [26,27] Recently, the compression strength of carbon fiber was measured with multifilament specimen using self-made compression test device and the measured compressive strength was 2800 MPa for T800S-12 K carbon fibers.…”

Section: Introductionmentioning

confidence: 99%

Direct measurement of axial compressive strength of carbon fibers using multifilament method

2022

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To measuring the compressive strength of carbon fibers accurately and effectively, a specially designed fixture was applied for directly measuring axial compressive strength of carbon fibers using T800HB‐12 K multifilament. Influence of adhesive thickness and specimen length on the testing results was investigated. Adhesive of epoxy effectively transferred compressive stress from the fixture to the specimen and provided enough support of multifilament rod from bending during compressive load. Typical shear failure for multifilament rod was realized for T800HB‐12 K carbon fibers during compression testing using the purposely designed fixture at adhesive thickness of 0.101–0.110 mm and test length of 2.0–3.0 mm. Compressive strength of about 2700 MPa with variation coefficient of 8% was obtained for T800HB‐12 K carbon fibers. The fixture and method established were capable for characterizing axial compressive strength of 1–24 K carbon fibers.

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“…Several techniques have been proposed for measuring the axial compressive strength of single fibers, including loop test [16], recoil test [17][18][19], micro-compression test [20][21][22][23] and compression test of single-fiber composite [24,25]. The present authors have compared the compressive strength values obtained by the recoil and the micro-compression test and found that the recoil test tended to underestimate the compressive strength due to the occurrence of flexural fracture [26].…”

Section: Compression Test Of Single Fibermentioning

confidence: 99%

Relation between interfacial shear strength and compressive strength of carbon fiber/epoxy resin composite strands

Kim¹,

Shioya²,

Nakatani³

2000

Composite Interfaces

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The mechanism with which the fiber-matrix interfacial strength exerts its influence on the compressive strength of fiber reinforced composites has been studied by measuring the axial compressive strength of carbon fiber/ epoxy resin unidirectional composite strands having different levels of interfacial shear strength. The composite strands are used for experiments in order to investigate the compressive strength which is not affected by the delamination taking place at a weak interlayer of the laminated composites. The interfacial strength is varied by applying various degrees of liquid-phase surface treatment to the fibers. The efficiency of the compressive strength of the fibers utilized in the strength of the composite strands is estimated by measuring the compressive strength of the single carbon filaments with a micro-compression test. The compressive strength of the composite strands does not increase monotonically with increasing interfacial shear strength but showes lower values at higher interfacial shear strengths. With increasing interfacial shear strength, the suppression of the interfacial failure in the misaligned fiber region increases the compressive strength, while at higher interfacial shear strengths, the enhancement of the crack sensitivity decreases the compressive strength.

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A novel method for measuring direct compressive properties of carbon fibres using a micro-mechanical compression tester

Cited by 30 publications

References 5 publications

Compressive Property of Basalt Fiber in Composite with Nano-indentation

Compressive Property of Basalt Fiber in Composite with Nano-indentation

Direct measurement of axial compressive strength of carbon fibers using multifilament method

Relation between interfacial shear strength and compressive strength of carbon fiber/epoxy resin composite strands

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