Fractographic analysis of tensile failure of acrylonitrile-butadiene-styrene fabricated by fused deposition modeling

An insight to the failure of FDM parts under tensile loading: finite element analysis and experimental study

“…Dawoud et al [15] investigated the effect of raster angle and raster air gap on mechanical strength of FDM parts and found that negative air gap significantly improved the mechanical strength of FDM parts. The influence of part build direction and raster orientation was investigated on tensile strength, tensile modulus and elongation of FDM samples [16]. The relationship between failure and mechanical properties are derived through fractographic analysis.…”

Influence of the molding angle on tensile properties of FDM parts with orthogonal layering

“…The failure of specimen loaded in building direction occurred similarly to brittle facture whereas the failure of specimen loaded in transverse direction was similar to the tensile ductile failure . The stress–strain of 0° specimen was characterized by softening due to the shear response, resulting in the greatest elongation‐at‐break value . The failure tends to plastic yielding with an oblique fracture for the layer with a smaller angle to the loading direction and brittle with straight fracture for the layer with a higher angle irrespective of the adhesion between successive layers.…”

“…16 The stress-strain of 0 specimen was characterized by softening due to the shear response, resulting in the greatest elongation-at-break value. 15 The failure tends to plastic yielding with an oblique fracture for the layer with a smaller angle to the loading direction and brittle with straight fracture for the layer with a higher angle irrespective of the adhesion between successive layers. The layers with smaller and bigger angle to the loading direction are interlaced and coexisted for the specimen with orthogonal layering in this study.…”

“…proposed a failure surface, which can prove an invaluable tool in formalizing the embrace of fused filament fabrication in industry . Moreover, the effects of build direction and orientation on the mechanical response and failure mechanism for ABS specimens fabricated by FDM utilize fractographic methods employing scanning electron microscope (SEM) images . The contribution of bonding between the filaments to the strength of FDM parts was investigated by both mathematical modeling and experiment .…”

“…14 Moreover, the effects of build direction and orientation on the mechanical response and failure mechanism for ABS specimens fabricated by FDM utilize fractographic methods employing scanning electron microscope (SEM) images. 15 The contribution of bonding between the filaments to the strength of FDM parts was investigated by both mathematical modeling and experiment. 16 Also, the finite element method was used to analyze the mechanical properties of FDM products.…”