A hybrid AHP-TOPSIS, MOORA technique for multi-objective optimization of thermal, mechanical, and water absorption behavior of epoxy/hemp, pine apple, and palm fiber composites

Abstract

ABSTRACTNatural fiber composites are capable of replacing synthetic fiber composites in aeronautics, transportation, architecture, and sports. This work used epoxy matrices to produce natural hybrid fiber composites from hemp, pineapple, and palm fiber. To choose the best material for a design or component, a thorough and successful approach is needed. Material selection judgments are best handled by multi-criteria decision-making (MCDM) procedures. Integrated MCDM approaches like AHP, TOPSIS, and MOORA rank epoxy-hemp-pineapple-palm fiber composites. TOPSIS and MOORA use AHP weights to rank objects. AHP weights are used to rank objects in both the TOPSIS and MOORA methods. Selection is based on a variety of properties of the generated composites, including water absorption and specific heat capacity, in addition to density, hardness, tensile strength, and toughness. The thermal degradation of fiber polymerization is assessed by thermo-gravimetric analysis (TGA). According to a thorough evaluation of MCDM methodologies, a hybrid composite made of palm, hemp, and pineapple performed best, followed by a hybrid composite made of palm and pineapple. This study found that a palm fiber composite has subpar results. Scanning electron microscopy (SEM) is used to examine fiber form and interfacial bonding in composite samples that have been exposed to tension fracture.CO EDITOR-IN-CHIEF: Hsiau, Shu-SanASSOCIATE EDITOR: Chen, Ping-HeiKEYWORDS: Hybrid epoxy natural fibers compositeTGAMCDMAHPTOPSIS and MOORA Nomenclature AHP=Analytical hierarchy processARAS=Additive ratio assessmentCI=Consistency indexCR=Consistency ratioDTG=Derivative of mass variationELECTRE=Elimination and choice translating realityFC1=Epoxy-hemp compositeFC2=Epoxy-pine apple compositeFC3=Epoxy-palm fiber compositeFC4=Epoxy-hemp-pine apple compositeFC5=Epoxy-pine apple-palm compositeFC6=Epoxy-palm-hemp fiber compositeFC7=Epoxy-palm-hemp-pine apple compositeMCDM=Multi-criteria decision-makingMOORA=Multi-objective optimization on the basis of ratio analysisRI=Random inconsistency indicesSEM=Scanning electron microscopySHC=Specific heat capacityTOPSIS=Technique for order preference by the resemblance to an ideal solutionTS=Tensile strengthTGA=Thermo gravimetric analysisWA=Water absorptionWPM=Weighted product modelWSM=Weighted sum modelWf=Wet weight of sample after time in water subtractedWi=Dry weight of sampleAcknowledgmentsThe authors esteem the insightful advice provided by all of the subject matter specialists. The authors are grateful to the Aditya Institute of Technology and Management in Tekkali, where they acquired access to the ARC laboratory and R&D laboratory funded by the European Centre for Mechatronics (APS GMBH), and Aachen Department of Science and Technology (DST), respectively.Disclosure statementNo potential conflict of interest was reported by the author(s).