• Influence of SMA reinforcement on the impact resistance of GFRP composite laminates under different temperatures

• # Fulltext

https://www.ias.ac.in/article/fulltext/boms/039/03/0889-0899

• # Keywords

GFRP laminates; shape memory alloy; low velocity impact; impact resistance; SEM.

• # Abstract

Plain glass fibre-reinforced polymeric (GFRP) laminates and GFRP reinforced with randomly oriented short strips of shape memory alloy (SMA) were prepared by hand lay-up method. The SMA strip reinforcement was placed at 0.75 $\times$ thickness of the laminate with weight fractions of 2, 4 and 6%. The specimens were exposed to drop weight impact test and the experiments were conducted at a constant impact velocity of 2.80 m s$^{−1}$ with different test temperatures such as 303, 333 and 363 K. The impact damage area was evaluated using lighting technique and fracture response was analysed using scanning electron microscopic (SEM) images. Absorption of impact energyand damage area due to low velocity impact were calculated. It was observed that with the higher temperature, the SMA/GFRP laminates exhibit marginally-enhanced damage resistance compared to the plain GFRP laminates. Also, addition of SMA reinforcement was not contributing much to the impact resistance at higher temperature.

• # Author Affiliations

1. Department of Mechanical Engineering, Thiruvalluvar College of Engineering and Technology, Vandavasi 604505, India
2. Department of Production Technology, MIT Campus, Anna University, Chennai 600044, India
3. Department of Mechanical Engineering, Anna University, Chennai 600025, India
4. PG and Research Department of Physics, Thiru Kolanjiappar Governement Arts College, Vridhachalam 606001, India
5. Department of Civil Engineering, Thiruvalluvar College of Engineering and Technology, Vandavasi 604505, India

• # Bulletin of Materials Science

Volume 46, 2023
All articles
Continuous Article Publishing mode

• # Dr Shanti Swarup Bhatnagar for Science and Technology

Posted on October 12, 2020

Prof. Subi Jacob George — Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bengaluru
Chemical Sciences 2020