Effect of annealing on the fracture toughness of poly(lactic acid)

Sang Dae Park; M. Todo; K. Arakawa

doi:10.1023/B:JMSC.0000012957.02434.1e

Effect of annealing on the fracture toughness of poly(lactic acid)

Sang Dae Park, M. Todo, K. Arakawa

Research output: Contribution to journal › Article › peer-review

64 Citations (Scopus)

Abstract

The effects of annealing and loading rate on the fracture behavior of poly (lactic acid) were investigated. Mode I fracture toughness values, K _IC and G_IC, were evaluated under quasi-static and impact loadings. It was shown that the multiple craze formation resulted in the high K_IC and G_IC of the quenched-static, and the supression of the crazing lowered the toughness at impact loading rate. The results show that for the annealed condition, microcracking at the spherulite interfaces can be responsible for the increase in the toughness.

Original language	English
Pages (from-to)	1113-1116
Number of pages	4
Journal	Journal of Materials Science
Volume	39
Issue number	3
DOIs	https://doi.org/10.1023/B:JMSC.0000012957.02434.1e
Publication status	Published - Feb 1 2004

All Science Journal Classification (ASJC) codes

Materials Science(all)
Mechanics of Materials
Mechanical Engineering

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10.1023/B:JMSC.0000012957.02434.1e

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title = "Effect of annealing on the fracture toughness of poly(lactic acid)",

abstract = "The effects of annealing and loading rate on the fracture behavior of poly (lactic acid) were investigated. Mode I fracture toughness values, K IC and GIC, were evaluated under quasi-static and impact loadings. It was shown that the multiple craze formation resulted in the high KIC and GIC of the quenched-static, and the supression of the crazing lowered the toughness at impact loading rate. The results show that for the annealed condition, microcracking at the spherulite interfaces can be responsible for the increase in the toughness.",

author = "Park, {Sang Dae} and M. Todo and K. Arakawa",

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AU - Park, Sang Dae

AU - Todo, M.

AU - Arakawa, K.

PY - 2004/2/1

Y1 - 2004/2/1

N2 - The effects of annealing and loading rate on the fracture behavior of poly (lactic acid) were investigated. Mode I fracture toughness values, K IC and GIC, were evaluated under quasi-static and impact loadings. It was shown that the multiple craze formation resulted in the high KIC and GIC of the quenched-static, and the supression of the crazing lowered the toughness at impact loading rate. The results show that for the annealed condition, microcracking at the spherulite interfaces can be responsible for the increase in the toughness.

AB - The effects of annealing and loading rate on the fracture behavior of poly (lactic acid) were investigated. Mode I fracture toughness values, K IC and GIC, were evaluated under quasi-static and impact loadings. It was shown that the multiple craze formation resulted in the high KIC and GIC of the quenched-static, and the supression of the crazing lowered the toughness at impact loading rate. The results show that for the annealed condition, microcracking at the spherulite interfaces can be responsible for the increase in the toughness.

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Effect of annealing on the fracture toughness of poly(lactic acid)

Abstract

All Science Journal Classification (ASJC) codes

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