Experimental study on compressive behavior of GFRP stiffened panels using digital image correlation

Kolanu, Naresh Reddy; Prakash, Shamsher; Ramji, M.

doi:10.1016/j.oceaneng.2016.01.034

Cited by 39 publications

(12 citation statements)

References 35 publications

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“…DIC technique is a full field non-contact optical technique used to measure the surface deformation. DIC registers two (or more) images of the same structure subjected to various loadings (e.g., mechanical loading or thermal loading) to obtain full-field surface strain measurements of the entire specimen [ 17 , 19 , 20 , 21 ]. Optical full-field measurement techniques are increasingly used in material testing, fracture mechanics, and vibration analysis.…”

Section: Methodsmentioning

confidence: 99%

Layup Configuration Effect on Notch Residual Strength in Composite Laminates

2018

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The current trend shows an increasing demand for composites due to their high stiffness to weight ratio and the recent progress in manufacturing and cost reduction of composites. To combine high strength and stiffness in a cost-effective way, composites are often joined with steel or aluminum. However, joining of thermoset composite materials is challenging because circular holes are often used to join them with their metal counterparts. These design based circular holes induce high stress concentration around the hole. The purpose of this paper is to focus on layup configuration and its impact on notch stress distribution. To ensure high quality and uniformity, the holes were machined by a 5 kW continuous wave (cw) CO2 laser. The stress distribution was evaluated and compared by using finite element analysis and Lekhnitskii’s equations. For further understanding, the notch strength of the laminates was compared and strain distributions were analyzed using the digital image correlation technique.

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Section: Methodsmentioning

confidence: 99%

Layup Configuration Effect on Notch Residual Strength in Composite Laminates

2018

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“…And due to the tested sample is a cylinder shape, two cameras are used for the measurement. The DIC testing system with two cameras has been used extensively for nonplanar samples in the past [42,43]. Fig.…”

Section: Digital Image Correlation (Dic) Systemmentioning

confidence: 99%

Loading rate effect on the uniaxial compressive strength (UCS) behavior of cemented paste backfill (CPB)

Xiu

Wang

et al. 2021

Construction and Building Materials

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“…The cross correlation coefficient is given in Eq. (l) and for correlation, small sub regions over the digital image are compared (Kolanu et al 2016).…”

Section: Dic Technique For Whole-field Strain Measurementmentioning

confidence: 99%

Strain Field of Reinforced Concrete under Accelerated Corrosion by Digital Image Correlation Technique

Jiang

Jin

Zhao

et al. 2017

ACT

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The strain evolution and crack pattern of reinforced concrete attacked by accelerated corrosion have been studied using strain gauges and the digital image correlation (DIC) technique. Results show that there was good consistency between DIC and the classical strain gauges in the strain evolution of corroding reinforced concrete. Moreover, the strain field and crack behaviour of reinforced concrete could be tracked by DIC image pattern intuitively and its stress could also be calculated by DIC quantitatively. However, the micro-deformation of reinforced concrete could not be obtained by DIC because of its test accuracy. When reinforced concrete was attacked by accelerated corrosion, the expansion stress was applied to the upper zone of reinforced bar, and the compressive stress was applied to its bottom zone. And the failure model of reinforced concrete was mainly in a brittle manner.

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Experimental study on compressive behavior of GFRP stiffened panels using digital image correlation

Cited by 39 publications

References 35 publications

Layup Configuration Effect on Notch Residual Strength in Composite Laminates

Layup Configuration Effect on Notch Residual Strength in Composite Laminates

Loading rate effect on the uniaxial compressive strength (UCS) behavior of cemented paste backfill (CPB)

Strain Field of Reinforced Concrete under Accelerated Corrosion by Digital Image Correlation Technique

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