Studies on shape memory alloy-embedded GFRP composites for improved post-impact damage strength

被引：16
作者：
Gupta, Amit Kumar [1 ,2 ]
Velmurugan, R. [1 ]
Joshi, Makarand [2 ]
Gupta, N. K. [3 ]
机构：
[1] IIT Madras, Dept Aerosp Engn, Chennai, Tamil Nadu, India
[2] R&DE E, Composite Res Ctr, Pune, Maharashtra, India
[3] IIT Delhi, Dept Appl Mech, New Delhi, India
来源：
INTERNATIONAL JOURNAL OF CRASHWORTHINESS | 2019年 / 24卷 / 04期
关键词：
Composites; shape memory alloy; delamination; low-velocity impact; numerical modelling; compression after impact; LOW-VELOCITY IMPACT; NUMERICAL SIMULATIONS; CRITERIA;
D O I：
10.1080/13588265.2018.1452549
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Embedding shape memory alloys (SMAs) in composites is a promising method resistance against impact loading.In the present paper, an attempt is made to quantify the improvement in damage mitigation properties of FRP (fibre reinforced plastic)composites by embedding SMA.Numerical modelling of low velocity impact was carried out topredict the delamination in composites and composites embedded with SMA and steel wires. Through modelling, effect of location and quantity of SMA material in decreasing the impact induced delamination size was also studied.Compression after impact (CAI) tests were carried out on pristine and SMA hybrid composite (SMAHC)specimens to quantify the change in damage resistance. Experimental results show an improvement in compressive load-carrying capacity after impact in SMAHC as compared to pristine composites.Experimental results match well with numerical findings in terms of; location of placement of SMA wire and optimum quantity of SMA wires.
引用
收藏
页码：363 / 379
页数：17
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