ABSTRACT
Porosity is a majw defect in cast aluminum alloys affecting in particuIm, the fatigue
strength. l%e pom sewe cr9 points of saess concenmrion mdpolnts of crud initiation
for evenfwI f~ilwe. In this work Fractal undysis was used to numericdy
chmucferke the pores in mi-directiondly solidfleddl 4.5 WI % Cu alloy microgrqhs,
nrnlsverse section at a distance of I4mm porn the mefaUchitl mold inteflme. l%e
Spatial Point PaTtern (SPP) and the Multi-stage randbm samplng (MR$l methd were
used 10 determine the distribvtion ofthe md the point of crack initiation leading
to mimd failure. i%e h4RS method reveah that aJI the pores cmidered we oj
irregular shupes, ii,e shrinkcrge pores, with sphericity B < 0.3. ne "worst" of the
shapes is ?he pore in the upper Iefl region with B 5.3078~-010a nd D = 1.8949. The
SPP method con- the result of th MRS method becaws crack inilialion will
commence in a region with ~Justeredpo res.
Durowoju, M (2021). Detection Of Tjb[Le Point Of Crack Mit.Tat1on Using Multi-Stage Random Sampling (Mrs] And Spatial Point Pattern (Spp). Afribary. Retrieved from https://afribary.com/works/detection-of-tjb-le-point-of-crack-mit-tat1on-using-multi-stage-random-sampling-mrs-and-spatial-point-pattern-spp
Durowoju, M. "Detection Of Tjb[Le Point Of Crack Mit.Tat1on Using Multi-Stage Random Sampling (Mrs] And Spatial Point Pattern (Spp)" Afribary. Afribary, 22 Apr. 2021, https://afribary.com/works/detection-of-tjb-le-point-of-crack-mit-tat1on-using-multi-stage-random-sampling-mrs-and-spatial-point-pattern-spp. Accessed 27 Nov. 2024.
Durowoju, M. . "Detection Of Tjb[Le Point Of Crack Mit.Tat1on Using Multi-Stage Random Sampling (Mrs] And Spatial Point Pattern (Spp)". Afribary, Afribary, 22 Apr. 2021. Web. 27 Nov. 2024. < https://afribary.com/works/detection-of-tjb-le-point-of-crack-mit-tat1on-using-multi-stage-random-sampling-mrs-and-spatial-point-pattern-spp >.
Durowoju, M. . "Detection Of Tjb[Le Point Of Crack Mit.Tat1on Using Multi-Stage Random Sampling (Mrs] And Spatial Point Pattern (Spp)" Afribary (2021). Accessed November 27, 2024. https://afribary.com/works/detection-of-tjb-le-point-of-crack-mit-tat1on-using-multi-stage-random-sampling-mrs-and-spatial-point-pattern-spp