Residual strength estimation of CFRP laminates subjected to impact at different velocities and temperatures

R. Bhoominathan; Vellayaraj Arumugam; Thompson Ashok; Andrew Jeyakumar Jefferson

doi:10.1002/pc.23796

Residual strength estimation of CFRP laminates subjected to impact at different velocities and temperatures

R. Bhoominathan, Vellayaraj Arumugam, Thompson Ashok, Andrew Jeyakumar Jefferson

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30 Scopus citations

Abstract

This paper demonstrates the results of an experimental study on cross ply carbon/epoxy composite laminates fabricated from high temperature hardener HT972 subjected to impact loading at different velocities and temperatures. The carbon fiber reinforced plastic (CFRP) samples were impacted at velocities 1.5 m/s and 2.5 m/s, each at a temperature level of 30°C, 60°C, 90°C, and 120°C. The impact response of the material towards various velocities and temperatures was determined using impact parameters like peak force, absorbed energy, maximum deflection, and rebound velocity. Result reveals that the velocity and temperature play a significant role in the impact response of the material. The variation in the trend of Flexural After Impact (FAI) strength of composite laminates at different velocities and temperatures was determined using FAI test and these results were further correlated with impact results. The dominating failure modes affecting the residual strength of the samples were found using acoustic emission (AE) monitoring. POLYM. COMPOS., 38:2182–2191, 2017.

Original language	British English
Pages (from-to)	2182-2191
Number of pages	10
Journal	Polymer Composites
Volume	38
Issue number	10
DOIs	https://doi.org/10.1002/pc.23796
State	Published - Oct 2017

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title = "Residual strength estimation of CFRP laminates subjected to impact at different velocities and temperatures",

abstract = "This paper demonstrates the results of an experimental study on cross ply carbon/epoxy composite laminates fabricated from high temperature hardener HT972 subjected to impact loading at different velocities and temperatures. The carbon fiber reinforced plastic (CFRP) samples were impacted at velocities 1.5 m/s and 2.5 m/s, each at a temperature level of 30°C, 60°C, 90°C, and 120°C. The impact response of the material towards various velocities and temperatures was determined using impact parameters like peak force, absorbed energy, maximum deflection, and rebound velocity. Result reveals that the velocity and temperature play a significant role in the impact response of the material. The variation in the trend of Flexural After Impact (FAI) strength of composite laminates at different velocities and temperatures was determined using FAI test and these results were further correlated with impact results. The dominating failure modes affecting the residual strength of the samples were found using acoustic emission (AE) monitoring. POLYM. COMPOS., 38:2182–2191, 2017.",

author = "R. Bhoominathan and Vellayaraj Arumugam and Thompson Ashok and Jefferson, {Andrew Jeyakumar}",

note = "Publisher Copyright: {\textcopyright} 2015 Society of Plastics Engineers",

year = "2017",

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doi = "10.1002/pc.23796",

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AU - Bhoominathan, R.

AU - Arumugam, Vellayaraj

AU - Ashok, Thompson

AU - Jefferson, Andrew Jeyakumar

PY - 2017/10

Y1 - 2017/10

N2 - This paper demonstrates the results of an experimental study on cross ply carbon/epoxy composite laminates fabricated from high temperature hardener HT972 subjected to impact loading at different velocities and temperatures. The carbon fiber reinforced plastic (CFRP) samples were impacted at velocities 1.5 m/s and 2.5 m/s, each at a temperature level of 30°C, 60°C, 90°C, and 120°C. The impact response of the material towards various velocities and temperatures was determined using impact parameters like peak force, absorbed energy, maximum deflection, and rebound velocity. Result reveals that the velocity and temperature play a significant role in the impact response of the material. The variation in the trend of Flexural After Impact (FAI) strength of composite laminates at different velocities and temperatures was determined using FAI test and these results were further correlated with impact results. The dominating failure modes affecting the residual strength of the samples were found using acoustic emission (AE) monitoring. POLYM. COMPOS., 38:2182–2191, 2017.

AB - This paper demonstrates the results of an experimental study on cross ply carbon/epoxy composite laminates fabricated from high temperature hardener HT972 subjected to impact loading at different velocities and temperatures. The carbon fiber reinforced plastic (CFRP) samples were impacted at velocities 1.5 m/s and 2.5 m/s, each at a temperature level of 30°C, 60°C, 90°C, and 120°C. The impact response of the material towards various velocities and temperatures was determined using impact parameters like peak force, absorbed energy, maximum deflection, and rebound velocity. Result reveals that the velocity and temperature play a significant role in the impact response of the material. The variation in the trend of Flexural After Impact (FAI) strength of composite laminates at different velocities and temperatures was determined using FAI test and these results were further correlated with impact results. The dominating failure modes affecting the residual strength of the samples were found using acoustic emission (AE) monitoring. POLYM. COMPOS., 38:2182–2191, 2017.

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Residual strength estimation of CFRP laminates subjected to impact at different velocities and temperatures

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