Shukur Abu Hassan, J.S. Binoj, Kheng Lim Goh, B. Brailson Mansingh, K.C. Varaprasad, Mohd Yazid Yahya, Faten Ermala Che Othman, Usaid Ahmed, Didik Nurhadiyanto, Mujiyono, A.P. Wulandari
Hybrid polymer composites reinforced with synthetic and natural fibers are gaining more interest in current composite technology in an effort to promote sustainability without sacrificing the performance of synthetic fiber reinforced polymer composites. The goal of this study is to see how the fiber stacking sequence of carbon and ramie fiber, as well as the orientation of ramie fiber, affects the quasi-static indentation behaviour of carbon/ramie fiber reinforced epoxy hybrid composites. The hybrid composite specimens were made using a hand layup approach followed by a hot pressing process. The quasi-static indentation properties of carbon/ramie fiber reinforcements in epoxy matrix were investigated using a hemispherical indenter at varying indenter displacement rates of 10, 20, and 30 mm/min for the stated stacking sequence and orientation. The indentation resistance qualities of carbon/ramie fiber reinforced epoxy hybrid composites were evaluated in terms of indentation force, hybrid composite specimen energy absorption capability, and hybrid composite specimen damage caused by hemispherical indenter penetration. The results reveal that a carbon/ramie fiber reinforced epoxy hybrid composite with 5 ramie fiber layers has better energy absorption capabilities, absorbing 114.926 J at a 20 mm/min indentation rate. Similarly, the indentation force in hybrid composites increases as the number of carbon/ramie fiber layers increases. These results indicate that carbon/ramie fiber reinforced epoxy hybrid composites have a great potential towards low velocity impact applications. © 2022 The Authors
Centre for Advanced Composite Materials, Office of Deputy Vice-Chancellor (Research & Innovation), Universiti Teknologi Malaysia, Johor, Johor Bahru, 81310, Malaysia; Micromachining Research Centre, Department of Mechanical Engineering, Mohan Babu University, Andhra Pradesh, Tirupati, 517102, India; Mechanical Design and Manufacturing Engineering, Newcastle University in Singapore, Singapore, 567739, Singapore; Department of Mechanical Engineering, Sri Ramakrishna Engineering College, Tamilnadu-641022, Coimbatore, India; Mechanical and Mechatronic Engineering, Faculty of Engineering, Sohar University (Sultanate of Oman), Al Jamiah Street, Sohar, 311, Oman; School of Mechanical Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, Johor-81310, Johor Bahru, Malaysia; Department of Mechanical Engineering Education, Faculty of Engineering, Universitas Negeri Yogyakarta-55281, Indonesia; Department of Biology, Universitas Padjadjaran, Jawa Barat, Sumedang-45363, Indonesia; The Centre of Study for Natural Fiber and Bioresources, Jawa Barat, Bandung-45363, Indonesia
