An Experimental and Numerical Study of the Dynamic Response of Composites under Impact Loading at Low Temperatures

Medžiagotyra

卷:21

Masoud Pour¹  Amin Torabizadeh² 

[1] Assistant professor, Quchan University of Advance Technologies Engineering;

[2] Assistant professor, University of Applied Science and Technology;

关键词: strain rate, charpy impact, failure mechanisms, energy absorption, analytical method;   

DOI  :  10.5755/j01.ms.21.1.5560

来源: DOAJ

【 摘 要 】

An analytical method was applied to investigate the effects of strain rate and low temperature on the energy absorption of composite specimens. The performance of analytical model was found to be adequate for modeling composites before failure initiation. Results indicated that impact performance of composites is affected over the range of temperature considered. Failure mechanism was changed from matrix cracking at room temperature to delamination and fiber breakage at low temperatures. Also it was showed that about 70 percent of total energy absorbed by specimen was used to destruction the composite under different types of failure mechanisms.

DOI: http://dx.doi.org/10.5755/j01.ms.21.1.5560

【 授权许可】

Unknown