Additive Manufacturing of Honeycomb Core Sandwich Panels: An Evaluation of Flexural Performance Kamalbabu Periasamy, Rammohan Bhanumurthy, R Viswanathan, Gowtham Rathore, A Mahammad Raif, et al. Journal of Physics Conference Series, 2024 Honeycomb core sandwich panels are widely recognized for their exceptional strength-to-weight ratio, making them ideal for various structural applications. Advancements in manufacturing, such as additive manufacturing, now allow the creation of complex cellular cores, offering significant advantages over traditional sandwich structures. In this study, conventional honeycomb core sandwich panels were modelled through computer-aided design software and manufactured with the Fused Deposition Modelling (FDM) technique. Nylon-based polyamide/carbon fiber (PA/CF) was used for the face sheet, while pure polylactic acid (PLA) served as the core material. Specimens were prepared according to ASTM standards to assess the bending properties of the panels. To investigate the impact of the core wall thicknesses, panels were produced with three thicknesses (1.5 mm, 2 mm, and 2.5 mm), finalized based on relative density ratios to optimize performance. Results show an 85% increase in face-sheet bending strength and a 90% increase in core shear strength with greater core wall thickness. Furthermore, beam deflection increased by 80% with thicker cores, and the load vs. deflection curve demonstrated improved load-carrying capability. These findings suggest that architected core structures can enhance bending properties, leading to more efficient designs for aerospace, automotive, and other structural applications.
TGA/DSC studies of marine coral reinforced polymer composites Kamalbabu Periasamy, G. C. Mohan Kumar Aip Conference Proceedings, 2019 Marine corals are mainly composed of calcium carbonate and organic matrix, which can be used as filler in polymer composites thus consequential in waste utilization from aquaculture by-products. In the present study, epoxy resin (EP) matrix composites were prepared by reinforcing raw cuttlebone particles (CB), heat treated cuttlebone particles (HB) as well as commercial calcium carbonate particles (CC) at 10 wt%. Different forms of reinforcement materials were characterized by thermogravimetric analysis (TGA) and X-ray photoelectron spectroscopy (XPS) to confirm the polymorph transformation. Thermal stability and glass transition temperature of EP, EP/CB, EP/HB and EP/CC composites were investigated by TGA and differential scanning calorimetry (DSC). EP/CC composite had highest glass transition temperature than EP, EP/CB and EP/HB composites, but EP/CB and EP/HB had good thermal stability than EP and EP/CC composites.Marine corals are mainly composed of calcium carbonate and organic matrix, which can be used as filler in polymer composites thus consequential in waste utilization from aquaculture by-products. In the present study, epoxy resin (EP) matrix composites were prepared by reinforcing raw cuttlebone particles (CB), heat treated cuttlebone particles (HB) as well as commercial calcium carbonate particles (CC) at 10 wt%. Different forms of reinforcement materials were characterized by thermogravimetric analysis (TGA) and X-ray photoelectron spectroscopy (XPS) to confirm the polymorph transformation. Thermal stability and glass transition temperature of EP, EP/CB, EP/HB and EP/CC composites were investigated by TGA and differential scanning calorimetry (DSC). EP/CC composite had highest glass transition temperature than EP, EP/CB and EP/HB composites, but EP/CB and EP/HB had good thermal stability than EP and EP/CC composites.
Sea coral-derived cuttlebone reinforced epoxy composites: Characterization and tensile properties evaluation with mathematical models Kamalbabu Periasamy, GC Mohankumar Journal of Composite Materials, 2016 Using sea coral as a new bio-mass in processing of particle-filled polymer composites is very promising in the field of structural applications. In this study, waste cuttlebone was used as a filler material in epoxy composites. In general, cuttlebone particles derived from crushing and sieving were in aragonite polymorph form. In the present study, calcite polymorph form was obtained after heat treatment of cuttlebone particles at 400℃. Presence of polymorph form, elemental composition and thermal stability were confirmed with different characterization techniques. Composites were prepared with aragonite and calcite polymorph form cuttlebone particles and commercially available calcium carbonate as reinforcement in epoxy matrix. Tensile tests were carried out to determine the composites strength and compared with predefined theoretical models. Heat-treated cuttlebone reinforced epoxy composites showed higher tensile properties and better interaction between filler and matrix than other composites.
Nonlinear dynamics of nitinol-enhanced carbon-fiber-reinforced polymer beam-rod in subsonic flow KS Tandel, B Rammohan, K Periasamy, PR Budarapu Journal of Aircraft 63 (2), 809-822 , 2026 2026 Citations: 4
Digital Image Correlation for Failure Analysis and Mechanical Characterization of Banana Fiber Hybrid Composites KS Deepthi, K S. Tandel, R B, K Periasamy International Mechanical Engineering Congress and Exposition-India 89176 … , 2025 2025
Additive Manufacturing of Honeycomb Core Sandwich Panels: An Evaluation of Flexural Performance K Periasamy, R Bhanumurthy, R Viswanathan, G Rathore, ... Journal of Physics: Conference Series 2925 (1), 012004 , 2024 2024 Citations: 3
Structure and rheology of chitosan-nanohydroxyapatite composite hydrogel for soft tissue regeneration BYS Kumar, AM Isloor, K Perisamy, GCM Kumar AIP Conference Proceedings 2247 (1), 040017 , 2020 2020 Citations: 5
Sea coral-derived cuttlebone reinforced epoxy composites: Characterization and tensile properties evaluation with mathematical models K Periasamy, GC Mohankumar Journal of Composite Materials 50 (6), 807-823 , 2016 2016 Citations: 50
Novel design features for matched die moulding for bio-composites DS Bavan, P Kamalbabu, GC Mohan Kumar ICoRD’15–Research into Design Across Boundaries Volume 2: Creativity … , 2014 2014
Effects of particle size on tensile properties of marine coral reinforced polymer composites P Kamalbabu, GCM Kumar Procedia materials science 5, 802-808 , 2014 2014 Citations: 44
MOST CITED SCHOLAR PUBLICATIONS
Sea coral-derived cuttlebone reinforced epoxy composites: Characterization and tensile properties evaluation with mathematical models K Periasamy, GC Mohankumar Journal of Composite Materials 50 (6), 807-823 , 2016 2016 Citations: 50
Effects of particle size on tensile properties of marine coral reinforced polymer composites P Kamalbabu, GCM Kumar Procedia materials science 5, 802-808 , 2014 2014 Citations: 44
Structure and rheology of chitosan-nanohydroxyapatite composite hydrogel for soft tissue regeneration BYS Kumar, AM Isloor, K Perisamy, GCM Kumar AIP Conference Proceedings 2247 (1), 040017 , 2020 2020 Citations: 5
Nonlinear dynamics of nitinol-enhanced carbon-fiber-reinforced polymer beam-rod in subsonic flow KS Tandel, B Rammohan, K Periasamy, PR Budarapu Journal of Aircraft 63 (2), 809-822 , 2026 2026 Citations: 4
Additive Manufacturing of Honeycomb Core Sandwich Panels: An Evaluation of Flexural Performance K Periasamy, R Bhanumurthy, R Viswanathan, G Rathore, ... Journal of Physics: Conference Series 2925 (1), 012004 , 2024 2024 Citations: 3
Digital Image Correlation for Failure Analysis and Mechanical Characterization of Banana Fiber Hybrid Composites KS Deepthi, K S. Tandel, R B, K Periasamy International Mechanical Engineering Congress and Exposition-India 89176 … , 2025 2025
Novel design features for matched die moulding for bio-composites DS Bavan, P Kamalbabu, GC Mohan Kumar ICoRD’15–Research into Design Across Boundaries Volume 2: Creativity … , 2014 2014