Unloading behavior of polymers due to dynamic crack propagation (2nd Report, Case of PMMA and Homalite-100)

Kazuo Arakawa; Daisuke Nagoh; Kiyoshi Takahashi

doi:10.1299/kikaia.64.2294

Unloading behavior of polymers due to dynamic crack propagation (2nd Report, Case of PMMA and Homalite-100)

Kazuo Arakawa, Daisuke Nagoh, Kiyoshi Takahashi

Renewable Energy Center

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Abstract

Dynamic stress intensity factor K_1D and crack velocity ȧ were determined using single-edge-cracked tensile specimens of PMMA and Homalite-100. To study unloading behavior of the material, load P applied to the specimen was also evaluated as a function of time t. Unloading rate Ṗ, the time derivative of P, was determined to correlate with K_1D and ȧ. The findings showed that the change in Ṗ was qualitatively in accord with the change in K_1D or ȧ. However, there existed slight differences among the values of t giving peak values of Ṗ, K _1D and ȧ, so that their order was ȧ, Ṗ and K _1d.

Original language	English
Pages (from-to)	2294-2299
Number of pages	6
Journal	Nihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A
Volume	64
Issue number	625
DOIs	https://doi.org/10.1299/kikaia.64.2294
Publication status	Published - 1998

All Science Journal Classification (ASJC) codes

Materials Science(all)
Mechanics of Materials
Mechanical Engineering

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Unloading behavior of polymers due to dynamic crack propagation (2nd Report, Case of PMMA and Homalite-100). / Arakawa, Kazuo; Nagoh, Daisuke; Takahashi, Kiyoshi.

In: Nihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A, Vol. 64, No. 625, 1998, p. 2294-2299.

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

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abstract = "Dynamic stress intensity factor K1D and crack velocity ȧ were determined using single-edge-cracked tensile specimens of PMMA and Homalite-100. To study unloading behavior of the material, load P applied to the specimen was also evaluated as a function of time t. Unloading rate Ṗ, the time derivative of P, was determined to correlate with K1D and ȧ. The findings showed that the change in Ṗ was qualitatively in accord with the change in K1D or ȧ. However, there existed slight differences among the values of t giving peak values of Ṗ, K 1D and ȧ, so that their order was ȧ, Ṗ and K 1d.",

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AU - Nagoh, Daisuke

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PY - 1998

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AB - Dynamic stress intensity factor K1D and crack velocity ȧ were determined using single-edge-cracked tensile specimens of PMMA and Homalite-100. To study unloading behavior of the material, load P applied to the specimen was also evaluated as a function of time t. Unloading rate Ṗ, the time derivative of P, was determined to correlate with K1D and ȧ. The findings showed that the change in Ṗ was qualitatively in accord with the change in K1D or ȧ. However, there existed slight differences among the values of t giving peak values of Ṗ, K 1D and ȧ, so that their order was ȧ, Ṗ and K 1d.

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Unloading behavior of polymers due to dynamic crack propagation (2nd Report, Case of PMMA and Homalite-100)

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