TEMPERATURE AND STRAIN-RATE DEPENDENCE OF FRACTURE-TOUGHNESS OF PHENOLPHTHALEIN POLYETHER KETONE

	TEMPERATURE AND STRAIN-RATE DEPENDENCE OF FRACTURE-TOUGHNESS OF PHENOLPHTHALEIN POLYETHER KETONE
	HAN YC ; YANG YM ; LI BY ; FENG ZL
刊名	journal of materials science
	1995
卷号	30 期号:14 页码:3658-3661
关键词	CRACK-BLUNTING MECHANISMS RUBBER-TOUGHENED EPOXY POLY(METHYL METHACRYLATE) PLASTIC-DEFORMATION POLYMERS RESINS PROPAGATION BEHAVIOR PMMA
ISSN号	0022-2461
通讯作者	han yc
中文摘要	a strong strain-rate and temperature dependence was observed for the fracture toughness of phenolphthalein polyether ketone (pek-c). two separate crack-blunting mechanisms have been proposed to account for the fracture-toughness data. the first mechanism involves thermal blunting due to adiabatic heating at the crack tip for the high temperatures studied. in the high-temperature range, thermal blunting increases the fracture toughness corresponding to an effectively higher test temperature. however, in the low-temperature range, the adiabatic temperature rise is insufficient to cause softening and jic increases with increasing temperature owing to viscoelastic losses associated with the p-relaxation there. the second mechanism involves plastic blunting due to shear yield/flow processes at the crack tip and this takes place at slow strain testing of the single-edge notched bending (senb) samples. the temperature and strain-rate dependence of the plastic zone size may also be responsible for the temperature and strain-rate dependence of fracture toughness.
收录类别	SCI收录期刊论文
语种	英语
公开日期	2010-12-30 ; 2011-06-10
内容类型	期刊论文
源URL	[http://ir.ciac.jl.cn/handle/322003/26513]
专题	长春应用化学研究所_长春应用化学研究所知识产出_期刊论文
推荐引用方式 GB/T 7714	HAN YC,YANG YM,LI BY,et al. TEMPERATURE AND STRAIN-RATE DEPENDENCE OF FRACTURE-TOUGHNESS OF PHENOLPHTHALEIN POLYETHER KETONE[J]. journal of materials science,1995,30(14):3658-3661.
APA	HAN YC,YANG YM,LI BY,&FENG ZL.(1995).TEMPERATURE AND STRAIN-RATE DEPENDENCE OF FRACTURE-TOUGHNESS OF PHENOLPHTHALEIN POLYETHER KETONE.journal of materials science,30(14),3658-3661.
MLA	HAN YC,et al."TEMPERATURE AND STRAIN-RATE DEPENDENCE OF FRACTURE-TOUGHNESS OF PHENOLPHTHALEIN POLYETHER KETONE".journal of materials science 30.14(1995):3658-3661.