TY - GEN
T1 - Effect of moisture on the mechanical properties of additively manufactured PLA, ABS and PLA/SiC composites
AU - Kakanuru, Padmalatha
AU - Pochiraju, Kishore
N1 - Publisher Copyright:
Copyright © 2019 ASME.
PY - 2019
Y1 - 2019
N2 - In this study the tensile properties of additively manufactured Polylactic Acid (PLA), Acrylonitrile Butadiene Styrene (ABS) and Silicon Carbide (SiC) particulate filled PLA composites were assessed after aging for 4.5 months at 50ºC in distilled water. The maximum moisture gain in PLA was about 16% by weight, and ABS gained 0.65%. In PLA/SiC composites, the weight gain due to moisture absorption was inversely proportional to the weight percentage of SiC loading. The PLA specimens degraded completely during aging without measurable residual strength. While the addition of SiC to PLA increased the room temperature tensile strength at lower volume fractions of SiC, the degradation of aged strength was similar to that of the pure PLA. The PLA/SiC composites had no measurable strength after aging. The ABS specimens retained their strength and failure strain after aging.
AB - In this study the tensile properties of additively manufactured Polylactic Acid (PLA), Acrylonitrile Butadiene Styrene (ABS) and Silicon Carbide (SiC) particulate filled PLA composites were assessed after aging for 4.5 months at 50ºC in distilled water. The maximum moisture gain in PLA was about 16% by weight, and ABS gained 0.65%. In PLA/SiC composites, the weight gain due to moisture absorption was inversely proportional to the weight percentage of SiC loading. The PLA specimens degraded completely during aging without measurable residual strength. While the addition of SiC to PLA increased the room temperature tensile strength at lower volume fractions of SiC, the degradation of aged strength was similar to that of the pure PLA. The PLA/SiC composites had no measurable strength after aging. The ABS specimens retained their strength and failure strain after aging.
KW - Additive manufacturing
KW - Durability
KW - Moisture
KW - PLA/SiC composites
KW - Temperature
UR - http://www.scopus.com/inward/record.url?scp=85078809248&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85078809248&partnerID=8YFLogxK
U2 - 10.1115/IMECE2019-11627
DO - 10.1115/IMECE2019-11627
M3 - Conference contribution
AN - SCOPUS:85078809248
T3 - ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)
BT - Advanced Manufacturing
T2 - ASME 2019 International Mechanical Engineering Congress and Exposition, IMECE 2019
Y2 - 11 November 2019 through 14 November 2019
ER -