شماره ركورد كنفرانس :
4561
عنوان مقاله :
Crack l eng t h e f f e c t on basa l t and gl a s s f iber s re in forced epoxy compos i t e s under Charpy impac t l oad ing cond i t i on
Author/Authors :
V Daghigh Islamic Azad University Kashan Branch, Kashan , H Daghigh Rocks Mechanics Division - Faculty of Engineering - S.B. University of Kerman, Kerman , K Nikbin Department of Mechanical Engineering - Imperial College, London , Ali Asghar Jafari Department of Mechanical Engineering - K.N. Toosi University of Technology, Tehran , A Rafiee Department of Mechanical Engineering - Islamic Azad University Jasb Branch , O Rahimi Department of Mechanical Engineering - Islamic Azad University Jasb Branch
كليدواژه :
Basalt fiber , glass fiber , epoxy composites , Charpy impact load , energy absorption
عنوان كنفرانس :
The Bi-Annual International Conference on Experimental Solid Mechanics and Dynamics ۲۰۱۴
چكيده لاتين :
The present research work, for the first time, deals with the crack length effects on basalt fiber reinforced epoxy (BFRE) and glass fiber reinforced epoxy (GFRE) composites subjected to Charpy impact loads. Woven basalt and glass fibers were used to fabricate specimens via hand lay-up technique. The initial cracks were made using CNC machine. Three different ratios of crack length to the specimen width were chosen to investigate the crack length effects on both BFRE and GFRE. Energy absorption was determined for each specimen with a crack of known length and compared with the energy absorbed during the Charpy impact test of the corresponding specimens. The results showed that the crack length had considerable effects on Charpy impact behavior of BFRE and GFRE. The precracked GFRE were shown to be more vulnerable to the crack length increase in comparison with the pre-cracked BFRE composites under Charpy impact loads.
