TY - JOUR
T1 - Elastic-Plastic Dynamic Line-Spring Model for the Simplified Analysis of the Impact Response of a 3-D Surface Crack
AU - Abé, Hiroyuki
AU - Saka, Masumi
AU - Utagawa, Manabu
N1 - Copyright:
Copyright 2016 Elsevier B.V., All rights reserved.
PY - 1990
Y1 - 1990
N2 - An elastic-plastic dynamic line-spring model is proposed for the simplified analysis of impact response of a part-through surface crack in an elastic perfectly plastic plate. Bending of the plate is treated based on Mindlin’s theory. Stiffness of the dynamic line-spring is evaluated by considering the growth of the plastic zone in the remaining regament and the unloading. The crack tip opening displacement, CTOD, for a semielliptical surface crack in a plate subjected to impact loading at its ends is calculated by using the present model. It is found that CTOD takes its maximum value at the deepest penetration point of the surface crack and the maximum value is larger than that in the static case.
AB - An elastic-plastic dynamic line-spring model is proposed for the simplified analysis of impact response of a part-through surface crack in an elastic perfectly plastic plate. Bending of the plate is treated based on Mindlin’s theory. Stiffness of the dynamic line-spring is evaluated by considering the growth of the plastic zone in the remaining regament and the unloading. The crack tip opening displacement, CTOD, for a semielliptical surface crack in a plate subjected to impact loading at its ends is calculated by using the present model. It is found that CTOD takes its maximum value at the deepest penetration point of the surface crack and the maximum value is larger than that in the static case.
KW - Crack Tip Opening Displacement
KW - Elastic-plastic Dynamic Line-spring
KW - Fracture Mechanics
KW - Plastic Zone
KW - Unloading
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U2 - 10.1299/kikaia.56.1099
DO - 10.1299/kikaia.56.1099
M3 - Article
AN - SCOPUS:0025429774
VL - 56
SP - 1099
EP - 1106
JO - Nihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A
JF - Nihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A
SN - 0387-5008
IS - 525
ER -