Impact test with flat-ended impactor for mouthguard materials specimen size effect

被引：5

作者：

Kim, HS ^{[1
]}

Stojcevski, S ^{[1
]}

机构：

[1] Univ Newcastle, Dept Engn Mech, Callaghan, NSW 2308, Australia

来源：

JOURNAL OF REINFORCED PLASTICS AND COMPOSITES | 1999年 / 18卷 / 06期

关键词：

mouthguard; impact; EVA; size effect;

D O I：

10.1177/073168449901800606

中图分类号：

TB33 [复合材料];

学科分类号：

摘要：

The effect of specimen diameter on impact force and stress is studied using a common mouthguard material, ethylene vinyl acetate (EVA) copolymer. A semi-empirical model to relate specimen diameter with impact force at different impact energy levels is developed. Impact tests were conducted to verify the model. It was found that experimental results are in good agreement with predictions for specimens involving small deformation, but are in less favourable agreement with those involving large and plastic deformation.

引用

页码：539 / 548

页数：10

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