کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4911947 1428535 2017 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Hybridisation of CFRP by the use of continuous metal fibres (MCFRP) for damage tolerant and electrically conductive lightweight structures
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
پیش نمایش صفحه اول مقاله
Hybridisation of CFRP by the use of continuous metal fibres (MCFRP) for damage tolerant and electrically conductive lightweight structures
چکیده انگلیسی
Carbon fibre reinforced polymers (CFRP) offer superior weight-specific mechanical properties. However, their brittle failure behaviour limits the structural integrity and damage tolerance in case of impact and crash events. Furthermore, the electrical conductivity is insufficient for certain applications (e.g. lightning strike protection, signal transfer, grounding). Former material concepts tried to resolve these deficits by modifying the resin system, but could not prove sufficient enhancements. A novel approach is the incorporation of highly conductive and ductile continuous metal filaments into the CFRP, thus merging electrical and load-bearing functions within the metal fibres. In this context, the present study focuses on optimising the structural and electrical performance of such hybrid composites with shares of metal fibres up to 20 vol.%. Fundamental experiments are carried out on unidirectional as well as on multiaxial (hybrid) laminates. Synchronous improvements of the electrical conductivity, the impact and penetration resistance, the notched properties as well as a pseudo-ductile behaviour can be verified. Additionally, the application of integrated metastable austenitic steel fibres for non-destructive health monitoring by measurement of deformation-induced phase transformations is introduced and discussed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Composite Structures - Volume 172, 15 July 2017, Pages 374-382
نویسندگان
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