000			01943nam a2200205Ia 4500
003			MX-MdCICY
005			20250625124722.0
040			_cCICY
090			_aB-8540
245	1	0	_aExperimental evaluation of residual stresses in single fibre composites by means of the fragmentation test
490	0		_vJournal of Materials Science, 31(4), p.2385-2392, 1996
520	3		_aThe residual stresses in both thermosetting and thermoplastic single-fibre composites have been experimentally evaluated by means of an original technique based on the continuous monitoring of the fragmentation test performed at various temperatures. The difference between the strain at the break of a single fibre in air and one embedded in a polymeric matrix has been measured as a function of temperature. By considering the compressive fibre modulus this strain difference has been converted into fibre compressive stresses related to the matrix thermal shrinkage after curing of the samples. In fact, as the test temperature increased, the thermal compressive stresses decreased until a zero value was obtained, corresponding to a so called "stress free temperature", equal to the curing temperature for amorphous thermosetting matrix composites or equal to the matrix melting temperature for semicrystalline-thermoplastic matrix composites. The experimental results have been compared with data obtained from a theoretical model and a good agreement was found especially if the temperature dependence of the matrix Young's modulus and matrix thermal expansion coefficient are accounted for in the computation.
700	1	2	_aDetassis, M.
700	1	2	_aPegoretti, A.
700	1	2	_aMigliaresi, C.
700	1	2	_aWagner, H.D.
856	4	0	_uhttps://drive.google.com/file/d/1FSAE8tsELRic-s_6FF-mtsuDPAJ9J7ky/view?usp=drivesdk _zPara ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx
942			_2Loc _cREF1
008			250602s9999 xx |||||s2 |||| ||und|d
999			_c42844 _d42844