The Wyoming Combined Loading Compression (CLC) Test Method

Johnson, WS; Masters, JE; Wilson, David G.; Adams, DF; Welsh, JS

doi:10.1520/ctr10023j

Cited by 35 publications

(1 citation statement)

References 6 publications

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“… More recently a final category of setups emerged as it was found that combinations of end and shear loading methods reduced stress concentrations at the tab tip and at the loaded end [6]. The RAE rig used this method in the early eighties [7] but in recent times new advanced compressive apparatus such as Wyoming CLC (combined loading compression) [8] and ICSTM (Imperial College London) [9,10] using combined loading were developed and led to standard D6641/D6641M [11].…”

Section: Existing Methods For Compressive Loading Test Of Compositesmentioning

confidence: 99%

Characterization of Reinforced Carbon Composites with Full Field Measurements: Long Gauge Length Compressive Apparatus

Verdiere¹,

Skordos²,

Walton³

2013

OJCM

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A new compressive testing apparatus is developed and used in this research. It has long gauge length to allow digital image correlation monitoring and anti buckling guides to prevent buckling. It allows the optical recording of strains and displacements. The novel setup is used to study the compressive response of tufted and untufted Carbon non crimp fabric composites with full field measurements. Experimental results show that the specimens are not bending in the apparatus under compression. Results also show reduced strain concentrations and a large strain field that provides a good environment for material compressive stiffness characterization. The test proves particularly successful for bias direction layup of [+45/−45] for which large damage mechanism occurs. However for [0/90] specimens a scatter in compressive ultimate strength was noticed which is due to the difficulty to prepare specimens with best minute accurate geometry. The compressive apparatus has shown to be a good alternative to existing setups and to provide significantly more information as well as having the possibility to be used in dynamics with a drop tower.

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Section: Existing Methods For Compressive Loading Test Of Compositesmentioning

confidence: 99%

Characterization of Reinforced Carbon Composites with Full Field Measurements: Long Gauge Length Compressive Apparatus

Verdiere¹,

Skordos²,

Walton³

2013

OJCM

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Compression behavior of woven glass/epoxy specimens using a new end‐loaded hybrid specimen

et al. 2011

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A new compression specimen was applied to woven glass/epoxy laminates. The specimen consists of epoxy layers cast on the sides of the laminate to prevent buckling. Thin-sheet aluminum ends enable alignment and avoid crushing under end loading, which does not require any special fixture. The compression stress-strain behavior of the laminate was obtained from the specimens by discounting the previously measured stress-strain curve of the epoxy backings. Despite the higher scatter in compression tests, the average modulus was practically identical to the tensile modulus. Moreover, failure occurred away from the ends in nearly all of the specimens tested. The average compressive strength was 84% of the tensile strength and consistent with the flexural strength measured in four-point bending tests. The present compression specimen could, therefore, become an interesting alternative to the more elaborate standard test methods available. Nevertheless, this new compression testing approach needs further evaluation involving application to other materials. POLYM. COMPOS., 32:491-496, 2011. ª

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Composite Materials

Ifju¹

2008

Springer Handbook of Experimental Solid Mechanics

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The Wyoming Combined Loading Compression (CLC) Test Method

Cited by 35 publications

References 6 publications

Characterization of Reinforced Carbon Composites with Full Field Measurements: Long Gauge Length Compressive Apparatus

Characterization of Reinforced Carbon Composites with Full Field Measurements: Long Gauge Length Compressive Apparatus

Compression behavior of woven glass/epoxy specimens using a new end‐loaded hybrid specimen

Composite Materials

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