caa a22 4500 465750745 CHVBK 20180323111833.0 cr unu---uuuuu 170327e19900901xx s 000 0 eng 10.1007/BF02322825 doi (NATIONALLICENCE)springer-10.1007/BF02322825 Determination of in-plane and out-of-plane shear moduli of composite materials [Elektronische Daten] [C. Tsai, I. Daniel] A general closed-form relationship was derived between torque and angle of twist for a prismatic composite specimen in terms of the geometric parameters and shear properties of the laminae. In the case of unidirectional laminates, relations are expressed in terms of three principal shear moduli, G12, G23 and G13. An experimental method was developed for determining these moduli by measuring surface and edge strains with strain gages. Unidirectional coupons of graphite/epoxy and silicon carbide/glass ceramic were tested in torsion and the three shear moduli were determined in each case. Society for Experimental Mechanics, Inc., 1990 Tsai C. Department of Civil and Mechanical Engineering, Northwestern University, 60208, Evanston, IL aut Daniel I. Department of Civil and Mechanical Engineering, Northwestern University, 60208, Evanston, IL aut Experimental Mechanics Kluwer Academic Publishers 30/3(1990-09-01), 295-299 0014-4851 30:3<295 1990 30 11340 https://doi.org/10.1007/BF02322825 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02322825 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Tsai C. Department of Civil and Mechanical Engineering, Northwestern University, 60208, Evanston, IL aut NATIONALLICENCE 700 1- Daniel I. Department of Civil and Mechanical Engineering, Northwestern University, 60208, Evanston, IL aut NATIONALLICENCE 773 0- Experimental Mechanics Kluwer Academic Publishers 30/3(1990-09-01), 295-299 0014-4851 30:3<295 1990 30 11340 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer