An AAT technique based fatigue evaluation of composite corrugated steel web girders under coupled flexural load and temperature gradient DOI
Zhiyu Wang,

Langqi Shi,

Guo-Wen Yao

et al.

Mechanics of Advanced Materials and Structures, Journal Year: 2024, Volume and Issue: unknown, P. 1 - 20

Published: Nov. 25, 2024

Medium-to-long spanned composite corrugated steel web (CSW) girders have recently been extensively constructed in the hot-humid terrains. Their degraded structural behavior service has concerning due to presence of surface cracks under vehicle load-induced fatigue and repeated temperature fluctuation as coupled loads. This paper presents an experimental loading study for such a structure with CSW dimensional scale factor comparable contemporary research work. An innovative artificial acceleration testing (AAT) technique was developed fulfill test controlled periodic variation temperature. The deterioration modes during whole progress analyzed. A new equation proposed calculation stress field incorporating compatible strain condition at steel-concrete interface resultant S-N relations based on fracture mechanics are demonstrated be reasonably consistent codified detail categories. intensity allowing crack geometry heat flux prescribed difference justified analytical remaining life analysis. results can provide reference development AAT technology basic theory thermal-structural analysis these future.

Language: Английский

Development of 3D printed novel multi-polymer component based on blended filaments of polylactic acid and polyethylene terephthalate glycol DOI

Arunkumar Thirugnanasambandam,

Hrishikesh Dutta, Constance L. Gnanasagaran

et al.

Progress in Additive Manufacturing, Journal Year: 2024, Volume and Issue: unknown

Published: June 13, 2024

Language: Английский

Citations

7
3D‐printed PLA/PMMA polymer composites: A consolidated feasible characteristic investigation for dental applications DOI

Arunkumar Thirugnanasamabandam,

Ramasamy Nallamuthu,

Malavika Renjit

et al.

Polymer Engineering and Science, Journal Year: 2024, Volume and Issue: 64(9), P. 4019 - 4031

Published: June 15, 2024

Abstract This research article focused on the blending of poly(lactic acid)/poly(methyl methacrylate) (PLA/PMMA) polymer materials to overcome PLA's inherent weaknesses, such as low glass transition temperature, brittleness, and lack melt strength. Consolidated feasible characteristic investigations, mechanical, thermal, aging behavior, were carried out for PLA/PMMA blended materials. Initially, miscibility blend filaments was prepared at various ratios (91/9, 82/18, 73/27) samples printed by fused deposition modeling (FDM). Differential scanning calorimetry (DSC) Fourier infrared spectroscopy (FTIR) analysis have been utilized evaluate temperature (Tg) intermolecular interaction, respectively, Experimental tensile, compression, flexural strength testing performed neat polymers composites. Compared PLA materials, composites had 13.24% 19.07% higher compression strengths. Besides, interfacial interaction has done using dynamic mechanical (DMA). Furthermore, Tg, storage modulus, behavior significantly improved over Altogether, development PMMA/PLA blends sustainable biomaterials dental applications aligns with environmental concerns need biocompatible in dentistry. Highlights Blending PMMA helps mitigate constraints PLA. Blended exhibited greater compressive Better interaction. Excellent thermal stability water imply viable biomaterials.

Language: Английский

Citations

7
Effects of annealing on the mechanical, thermal, and physical properties of 3D-printed PLA aged in salt water DOI
Jennifer Tejedor,

Pablo D. Cevallos,

Eduardo S. Coro

et al.

Mechanics of Advanced Materials and Structures, Journal Year: 2024, Volume and Issue: unknown, P. 1 - 15

Published: July 12, 2024

Despite recent advances in understanding the performance of 3D-printed polylactic acid (PLA) parts, there is a gap to be covered before they can safely used marine applications. Given this need, study evaluates influence annealing on mechanical, thermal and physical properties PLA specimens aged salt water at 45 °C for days. Results showed that adequate (100 °C, 70 min) reduces effects aging flexural dynamic mechanical properties. This because increased crystallinity reduced void content annealed specimens, also decreased their adsorption surface defects.

Language: Английский

Citations

5
Wood flour / ceramic reinforced Polylactic Acid based 3D - printed functionally grade structural material for integrated engineering applications: A numerical and experimental characteristic investigation DOI Creative Commons

Arunkumar Thirugnanasamabandam,

B.S. Prabhu,

Varsha Mageswari

et al.

International Journal of Lightweight Materials and Manufacture, Journal Year: 2024, Volume and Issue: unknown

Published: Aug. 1, 2024

Language: Английский

Citations

4
Synthesis of PLA/MgAl2O4 Composite Using Slurry Casting Method: A Study on Biomaterial Properties DOI

Mehran Ghodrati,

Seyed Mahdi Rafiaei, Lobat Tayebi

et al.

Journal of Bio- and Tribo-Corrosion, Journal Year: 2025, Volume and Issue: 11(1)

Published: Jan. 23, 2025

Language: Английский

Citations

0
Experimental and numerical analysis of 3D-printed pure PLA and ceramic-reinforced PLA multilayered composites DOI

Arunkumar Thirugnanasamabandam,

Ramasamy Nallamuthu, Abdullah Alarifi

et al.

Mechanics of Advanced Materials and Structures, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 14

Published: Feb. 4, 2025

Language: Английский

Citations

0
Characteristic investigation of carbon/ceramic-based functionally graded multilayered composite materials DOI

Arunkumar Thirugnanasamabandam,

Ramasamy Nallamuthu

Journal of materials research/Pratt's guide to venture capital sources, Journal Year: 2024, Volume and Issue: 39(15), P. 2176 - 2187

Published: June 26, 2024

Language: Английский

Citations

3
An AAT technique based fatigue evaluation of composite corrugated steel web girders under coupled flexural load and temperature gradient DOI
Zhiyu Wang,

Langqi Shi,

Guo-Wen Yao

et al.

Mechanics of Advanced Materials and Structures, Journal Year: 2024, Volume and Issue: unknown, P. 1 - 20

Published: Nov. 25, 2024

Medium-to-long spanned composite corrugated steel web (CSW) girders have recently been extensively constructed in the hot-humid terrains. Their degraded structural behavior service has concerning due to presence of surface cracks under vehicle load-induced fatigue and repeated temperature fluctuation as coupled loads. This paper presents an experimental loading study for such a structure with CSW dimensional scale factor comparable contemporary research work. An innovative artificial acceleration testing (AAT) technique was developed fulfill test controlled periodic variation temperature. The deterioration modes during whole progress analyzed. A new equation proposed calculation stress field incorporating compatible strain condition at steel-concrete interface resultant S-N relations based on fracture mechanics are demonstrated be reasonably consistent codified detail categories. intensity allowing crack geometry heat flux prescribed difference justified analytical remaining life analysis. results can provide reference development AAT technology basic theory thermal-structural analysis these future.

Language: Английский

Citations

0