TY - GEN
T1 - Fracture of Pre-stressed Woven Glass Fiber Composite Exposed to Shock Loading
AU - Mallon, Silas
AU - Koohbor, Behrad
AU - Kidane, Addis
N1 - Funding Information:
The financial support of NASA through EPSCOR under Grant No. 21-NE-USC_Kidane-RGP is gratefully acknowledged.
PY - 2015
Y1 - 2015
N2 - Fracture study of an orthogonally woven glass fiber-reinforced epoxy composite under shock loading was performed. A shock tube apparatus was utilized to produce dynamic loading, applied to pre-stressed composite specimens. The displacement and strain fields present in the material were observed using the 3D digital image correlation technique. Displacement components obtained from the DIC were analyzed with the use of an over deterministic numerical approach to determine the stress intensity factor present in the composite specimens. The effect of the orientation of the reinforcing fiber with respect to the crack faces was observed via the use of several specimen types, having various angles of fiber orientation. The effect of the value of prestress is also examined with the use of two distinct magnitudes of prestress. Results indicate that the value of applied pre-stress might significantly influence the velocity of propagating crack, as well as the out-of-plane displacement component, while the stress intensity factor present in the specimen at the time of fracture will not undergo a considerable change with varying the magnitude of the applied pre-stress.
AB - Fracture study of an orthogonally woven glass fiber-reinforced epoxy composite under shock loading was performed. A shock tube apparatus was utilized to produce dynamic loading, applied to pre-stressed composite specimens. The displacement and strain fields present in the material were observed using the 3D digital image correlation technique. Displacement components obtained from the DIC were analyzed with the use of an over deterministic numerical approach to determine the stress intensity factor present in the composite specimens. The effect of the orientation of the reinforcing fiber with respect to the crack faces was observed via the use of several specimen types, having various angles of fiber orientation. The effect of the value of prestress is also examined with the use of two distinct magnitudes of prestress. Results indicate that the value of applied pre-stress might significantly influence the velocity of propagating crack, as well as the out-of-plane displacement component, while the stress intensity factor present in the specimen at the time of fracture will not undergo a considerable change with varying the magnitude of the applied pre-stress.
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U2 - 10.1007/978-3-319-06995-1_32
DO - 10.1007/978-3-319-06995-1_32
M3 - Conference contribution
AN - SCOPUS:84906309058
SN - 9783319069944
T3 - Conference Proceedings of the Society for Experimental Mechanics Series
SP - 213
EP - 219
BT - Dynamic Behavior of Materials - Proceedings of the 2014 Annual Conference on Experimental and Applied Mechanics
PB - Springer New York LLC
T2 - Annual Conference and Exposition on Experimental and Applied Mechanics, SEM 2014
Y2 - 2 June 2014 through 5 June 2014
ER -