A strip-yield rate-dependent model for rapid loading conditions

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A strip-yield rate-dependent model for rapid loading conditions. / Nilsson, Fred; Ohlsson, Patrich; Sjöberg, Fredrik; Ståhle, Per.

I: Engineering Fracture Mechanics, Vol. 33, Nr. 3, 01.01.1989, s. 429-436.

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskrift

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Nilsson, Fred ; Ohlsson, Patrich ; Sjöberg, Fredrik ; Ståhle, Per. / A strip-yield rate-dependent model for rapid loading conditions. I: Engineering Fracture Mechanics. 1989 ; Vol. 33, Nr. 3. s. 429-436.

RIS

TY - JOUR

T1 - A strip-yield rate-dependent model for rapid loading conditions

AU - Nilsson, Fred

AU - Ohlsson, Patrich

AU - Sjöberg, Fredrik

AU - Ståhle, Per

N1 - Concerns the shift of fracture processes between slow and fast crack growth

PY - 1989/1/1

Y1 - 1989/1/1

N2 - In order to obtain quantitative information of the effects of rate dependent plasticity on crack growth initiation, a strip yield (Dugdale) model for small-scale yielding is developed. The adopted rate dependence of the flow stress is of the Perzyna type. Numerical solutions are obtained for different KI(t) functions. By adopting both a displacement-criterion and a stress-criterion for crack growth, rate effects on the dynamic Fracture toughness are studied.

AB - In order to obtain quantitative information of the effects of rate dependent plasticity on crack growth initiation, a strip yield (Dugdale) model for small-scale yielding is developed. The adopted rate dependence of the flow stress is of the Perzyna type. Numerical solutions are obtained for different KI(t) functions. By adopting both a displacement-criterion and a stress-criterion for crack growth, rate effects on the dynamic Fracture toughness are studied.

KW - Fracture Mechanics

KW - Fracture Processes

KW - Fracture Criteria

UR - http://www.scopus.com/inward/record.url?scp=0024881162&partnerID=8YFLogxK

U2 - 10.1016/0013-7944(89)90092-1

DO - 10.1016/0013-7944(89)90092-1

M3 - Article

VL - 33

SP - 429

EP - 436

JO - Engineering Fracture Mechanics

JF - Engineering Fracture Mechanics

SN - 1873-7315

IS - 3

ER -