TY - GEN
T1 - Evaluation of new test methods for the determination of giiic of laminated polymeric composites
AU - Johnston, A. L.
AU - Davidson, B. D.
AU - Simon, K. K.
PY - 2012
Y1 - 2012
N2 - New test methods are proposed and evaluated for determination of the mode III delamination toughness of polymeric matrix composite materials. All methods use a split beam-type specimen. Different specimen geometries and various methods of load introduction and specimen constraint are considered. Initial assessments are performed via three dimensional finite element analyses and the most promising approaches are evaluated experimentally. Two different unidirectional carbon/ epoxy materials are considered. For either material, it is shown that the same mode III toughness is obtained from four different test configurations. This lends confidence that the tests are producing a material, rather than structural, property, and indicates that one of the configurations may prove to be a simple and accurate approach for determining the mode III delamination toughness of laminated composites.
AB - New test methods are proposed and evaluated for determination of the mode III delamination toughness of polymeric matrix composite materials. All methods use a split beam-type specimen. Different specimen geometries and various methods of load introduction and specimen constraint are considered. Initial assessments are performed via three dimensional finite element analyses and the most promising approaches are evaluated experimentally. Two different unidirectional carbon/ epoxy materials are considered. For either material, it is shown that the same mode III toughness is obtained from four different test configurations. This lends confidence that the tests are producing a material, rather than structural, property, and indicates that one of the configurations may prove to be a simple and accurate approach for determining the mode III delamination toughness of laminated composites.
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M3 - Conference contribution
AN - SCOPUS:84874492923
SN - 9781622764389
T3 - 27th Annual Technical Conference of the American Society for Composites 2012, Held Jointly with 15th Joint US-Japan Conference on Composite Materials and ASTM-D30 Meeting
SP - 120
EP - 139
BT - 27th Annual Technical Conference of the American Society for Composites 2012, Held Jointly with 15th Joint US-Japan Conference on Composite Materials and ASTM-D30 Meeting
T2 - 27th Annual Technical Conference of the American Society for Composites 2012, Held Jointly with 15th Joint US-Japan Conference on Composite Materials and ASTM-D30 Meeting
Y2 - 1 October 2012 through 3 October 2012
ER -