Tension behavior of unidirectional glass/epoxy composites under different strain rates

Shokrieh, M.M.; Omidi, Majid Jamal

doi:10.1016/j.compstruct.2008.06.012

Cited by 196 publications

(90 citation statements)

References 18 publications

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“…This could be explained due to the fact that shear failure play dominant role in failure initiation and failure effect. This failure phenomenon is similar in finding obtained by Shokrieh and Omidi (2009) where they claimed that delamination and shear deformation were observed for off axis glass fiber during their tensile testing. In another researcher work by Ikbal et al (2016), similar circumstance occurs and seen from failure mode perspective, where delamination, not severe, observed in the specimens and the interface between layers produced a bit more delamination.…”

Section: Discussionsupporting

confidence: 75%

Elasticity deformation and failure modes behavior of hybrid composite CFRP/GFRP under tensile loading

Ghani

2018

Int. j. adv. appl. sci.

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This article presents experimental protocol in measuring deformation occur on in-plane hybrid composites CFRP/GFRP as well as assessing the failure modes associated with them. The challenging task of extracting mechanical properties of a hybrid composite is assisted with the use of Digital Image Correlation Technique (DIC). DIC is an innovative technique which able to capture full field deformation of tensile deformation. The complex deformation captured for hybrid composite in-plane tensile deformation and behavior using Digital Image Correlation (DIC) under static loading is a new area of study in literature. Generally, hybrid composite consists of more than one reinforcing sections or multiple reinforcing or multiple matrix sections or single reinforcing phase with multiple matrix phases. As a result of the compromise between the materials within the hybrid composite, the deformation and stress analysis are to be evaluated and tailored as each constituent of material carry their own desired mechanical properties according to a performance requirement. It is found from a classical relation of stress-strain relationship of the hybrid composite under tensile loading, the modulus of elasticity is found to record value around 100839 MPa and 80778M Pa which in theoretical benchmark located in between value of Modulus of Elasticity for CFRP (120 GPa) and GFRP (36 GPa) which proves the occurrence of hybrid effect.

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Section: Discussionsupporting

confidence: 75%

Elasticity deformation and failure modes behavior of hybrid composite CFRP/GFRP under tensile loading

Ghani

2018

Int. j. adv. appl. sci.

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“…The general trend is for increasing stiffness with increasing strain rate, particularly in the case of glass fibre composites e.g. [20,21]. Carbon fibre composites are generally less strain rate sensitive in the fibre direction [13] but in offaxis [22] or through thickness directions [23] the strain rate sensitivity of the matrix can have some influence.…”

Section: Dynamic Behaviour Of Laminated Compositesmentioning

confidence: 99%

Full-Field Strain Measurement and Identification of Composites Moduli at High Strain Rate with the Virtual Fields Method

et al. 2010

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is an open access repository that collects the work of Arts et Métiers ParisTech researchers and makes it freely available over the web where possible. Abstract The present paper deals with full-field strain measurement on glass/epoxy composite tensile specimens submitted to high strain rate loading through a split Hopkinson pressure bar (SHPB) device and with the identification of their mechanical properties. First, the adopted methodology is presented: the device, including an Ultra-High Speed camera, and the experimental procedure to obtain relevant displacement maps are described. The different full-field results including displacement, strain and acceleration maps for two mechanical tests are then addressed. The last part of the paper deals with an original procedure to identify stiffnesses on this dynamic case only using the actual strain and acceleration maps (without the applied force) by using the Virtual Fields Method.

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“…Shokrieh and Omidi [18] studied a unidirectional glass/epoxy composite system through the use of a servo-hydraulic test apparatus, specimens over strain rates that ranged from 0.001 to 100 s −1…”

Section: Introductionmentioning

confidence: 99%

Strain Rate Effects in CFRP Used For Blast Mitigation

et al. 2014

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Abstract:The purpose of this research is to gain a better understanding of strain rate effects in carbon fiber reinforced polymer (CFRP) laminates exposed to blast loading. The use of CFRP offers an attractive option for mitigating structures exposed to blasts. However, the effect of high strain rates in CFRP composites commonly used in the civil industry is unknown. This research conducted tensile tests of 21 CFRP coupons using a hydraulically powered dynamic loader. The strain rates ranged from 0.0015 s and are representative of strain rates that CFRP may see in a blast when used to strengthen reinforced concrete structures. The results of the testing showed no increase in the tensile strength or stiffness of the CFRP at the higher strain rates. In addition, the results showed significant scatter in the tensile strengths possibly due to the rate of loading or manufacture of the coupon.

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Tension behavior of unidirectional glass/epoxy composites under different strain rates

Cited by 196 publications

References 18 publications

Elasticity deformation and failure modes behavior of hybrid composite CFRP/GFRP under tensile loading

Elasticity deformation and failure modes behavior of hybrid composite CFRP/GFRP under tensile loading

Full-Field Strain Measurement and Identification of Composites Moduli at High Strain Rate with the Virtual Fields Method

Strain Rate Effects in CFRP Used For Blast Mitigation

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