EXAMINATION OF THE PROCESSES OF DEFORMATION AND FRACTURE IN A SILICA-FILLED EPOXY-RESIN

被引:30
作者
CANTWELL, WJ [1 ]
SMITH, JW [1 ]
KAUSCH, HH [1 ]
KAISER, T [1 ]
机构
[1] ASEA BROWN BOVERI & CIE,CORP RES,CH-5405 BADEN,SWITZERLAND
关键词
D O I
10.1007/BF00714088
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
A series of short-term fracture tests have been undertaken on a silica-filled epoxy resin in order to examine the processes of damage initiation, development and fracture in a particulatefilled polymer. Several different types of inelastic deformation and fracture mechanisms were observed within the volume of the material. These included localized shear yielding, particlematrix debonding and micro-cracking. The relative amount of each of these was found to depend upon the test rate and temperature. At low temperatures and high rates of loading, failure was associated with one single debonding event whereas at high temperatures and low rates, debonding and yielding were found to be extensive throughout the volume of the test specimens. A detailed examination of the fractured specimens identified several distinct regions on the fracture surface. Surrounding the defect the particles were often debonded from the matrix suggesting that the crack had propagated in a sub-critical manner. Beyond this zone was a smooth zone corresponding to the region over which the crack was accelerating unstably. The smooth zone then developed into a rough three-dimensional zone in which the crack was propagating at its maximum velocity. The size of each of these zones was found to vary considerably with test temperature and cross-head speed. © 1990 Chapman and Hall Ltd.
引用
收藏
页码:633 / 648
页数:16
相关论文
共 17 条
[1]   FRACTOGRAPHY OF HIGHLY CROSSLINKED POLYMERS [J].
ATSUTA, M ;
TURNER, DT .
JOURNAL OF MATERIALS SCIENCE LETTERS, 1982, 1 (04) :167-169
[2]   FRACTOGRAPHY OF UNFILLED AND PARTICULATE-FILLED EPOXY-RESINS [J].
CANTWELL, WJ ;
ROULINMOLONEY, AC ;
KAISER, T .
JOURNAL OF MATERIALS SCIENCE, 1988, 23 (05) :1615-1631
[3]   THE FRACTURE OF HIGHLY CROSSLINKED POLYMERS .2. FRACTOGRAPHY [J].
CHERRY, BW ;
THOMSON, KW .
JOURNAL OF MATERIALS SCIENCE, 1981, 16 (07) :1925-1934
[4]  
CUDREMAROUX N, 1987, UNPUB
[5]   ON THE TOUGHNESS OF PARTICULATE FILLED POLYMERS [J].
EVANS, AG ;
WILLIAMS, S ;
BEAUMONT, PWR .
JOURNAL OF MATERIALS SCIENCE, 1985, 20 (10) :3668-3674
[6]  
HOLIK AS, 1979, MICROSTRUCT SCI, V7, P357
[7]   ON SHAPE AND SIZE OF FRACTURE ZONES ON GLASS FRACTURE SURFACES [J].
JOHNSON, JW ;
HOLLOWAY, DG .
PHILOSOPHICAL MAGAZINE, 1966, 14 (130) :731-&
[8]  
KOGA M, 1984, 27TH P JAP C MAT RES, P295
[9]  
KOGA M, 1978, 21ST P JAP C MAT RES, P93
[10]   CRAZING IN EPOXY RESINS [J].
LILLEY, J ;
HOLLOWAY, DG .
PHILOSOPHICAL MAGAZINE, 1973, 28 (01) :215-220