Shape correction of composite beams with SMA wires

Arup K. Maji; Refugio Rochin

doi:10.1117/12.434190

24 July 2001 Shape correction of composite beams with SMA wires

Arup K. Maji, Refugio Rochin

Proceedings Volume 4335, Advanced Nondestructive Evaluation for Structural and Biological Health Monitoring; (2001) https://doi.org/10.1117/12.434190
Event: 6th Annual International Symposium on NDE for Health Monitoring and Diagnostics, 2001, Newport Beach, CA, United States

Abstract

Shape Memory Alloys (SMA) are increasingly used as smart devices ina erospace applicatons.Their priry advnatage over other smart materials z9piezo-ceramics adnpiezo-polymers) is in their ability to undergo large strains and dispalcements that enables the devlopment of smart mechanissm. The specific objective of this research was toinvestigate the use of embedded SMA for active shape correctionof flexibl emirror substrates.Active shape correction is a possiblemeans of mitigating thrmally induced distortions in space based optical iaging systems inorder to understand and quantify the designvalraibles that lead to that goal, embedded SMA wires we used toa cctuate a series of composite bmeasm.Themoemvent induced byactutionw as monitored with theMoire inteferietery method,and the rsutls wer compared witha n anlaytical model.The repeatabiltya nd rlaibltiyof a possible acutation systmeand the propertis of the SMa wires was also studied by testing the stress-strian anthe stress reo ery behavior under controlled conditons.110

Citation Download Citation

Arup K. Maji and Refugio Rochin "Shape correction of composite beams with SMA wires", Proc. SPIE 4335, Advanced Nondestructive Evaluation for Structural and Biological Health Monitoring, (24 July 2001); https://doi.org/10.1117/12.434190

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