%0 Journal Article
%T PreliminaryStudyonEvaluationSystemofCapabilityofCompositestoWithstandImpact
%A SHENZhen
%A CHENPu-hui
%A YANGSheng-chun
%J ²ÄÁϹ¤³Ì
%P 68-72
%D 2006
%X Thispapersummarizestheauthors¡¯experimentalstudyonthecharacterizationsystemofcompositebehaviortowithstandimpact.Thecontentincludes(1)Thedentdepthisthebestparameterdescribingtheimpactdamagestate.(2)Thereexiststhekneepointphenomenonfordamageresistancebehavior(i.e.therelationshipbetweenimpactenergyorcontactforceanddentdepth)anddamagetolerancebehavior(i.e.therelationshipbetweendentdepthandcompressivefailurestrainorstress)ofcompositelaminates.(3)Thephysicalmeaningofthekneepointphenomenonisthatthefailuremechanismschangeofdamagedcompositestofiberbreakageinthefirstfrontpliesfrommatrixcrackanddelamination.Somesuggestionsonthecharacterizationsystemofcompositebehaviortowithstandimpactwereproposed.
%K composite
%K dentdepth
%K damageresistance
%K damagetolerance
%K kneepointphenomenon
%U http://jme.biam.ac.cn/CN/Y2006/V0/I5/68