An experimental and numerical study of the dynamic response of composites under impact at low temperatures

作者：Torabizadeh M A^*; Shokrieh M M

来源：Mechanics of Advanced Materials and Structures, 2016, 23(6): 615-623.

DOI：10.1080/15376494.2015.1017677

• impact test
• analytical model
• polymeric composites
• low temperatures
• impact direction

An analytical method was applied to investigate the effects of strain rate, low temperature, and impact direction on the energy absorption of composite specimens. The performance of an 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 temperatures. Failure mechanism was changed from matrix cracking at room temperature to delamination and fiber breakage at low temperatures. Moreover, it was shown that about 70% of total energy absorbed by a specimen was used to destroy the composite under different types of failure mechanisms.

• 出版日期2016