Challenging the "ΔKeff is the driving force for fatigue crack growth" hypothesis

被引：18

作者：

Ortiz Gonzalez, Julian Andres ^{[1
]}

Pinho de Castro, Jaime Tupiassu ^{[1
]}

Meggiolaro, Marco Antonio ^{[1
]}

Gomez Gonzales, Giancarlo Luis ^{[1
]}

de Franca Freire, Jose Luiz ^{[1
]}

机构：

[1] Pontifical Catholic Univ Rio de Janeiro, PUC Rio, R Marques de Sao Vicente 225, Rio De Janeiro 22451900, Brazil

来源：

INTERNATIONAL JOURNAL OF FATIGUE | 2020年 / 136卷 / 136期

关键词：

Fatigue crack growth; Fatigue crack driving force; Crack-opening load; Effective stress intensity factor range; Crack closure; DAMAGE ACCUMULATION; CLOSURE; THRESHOLD; PARAMETER; KEFF;

D O I：

10.1016/j.ijfatigue.2020.105577

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Tests are used to verify the hypothesis "the fatigue crack growth (FCG) driving force is the effective stress intensity factor range Delta K-eff". The tests are performed measuring FCG rates in steel and aluminum C(T) and DC(T) specimens under fixed {Delta K, K-ma(x)} loading conditions and during FCG delays induced by single overloads. Crack-opening loads P-op are redundantly measured along the crack path in all tests, using independent near and far field strain-gages, as well as Digital Image Correlation (DIC) techniques. Finally, elastoplastic strain loops within the reverse plastic zone ahead of crack tips are measured using a stereo microscope DIC system.

引用

页数：11

共 50 条

[1] Verification of the ΔKeff hypothesis along the fatigue crack path in thin and thick Al specimens
Ortiz Gonzalez, Julian Andres
Pinho de Castro, Jaime Tupiassu
Gomez Gonzales, Giancarlo Luis
Meggiolaro, Marco Antonio
de Franca Freire, Jose Luiz
FRATTURA ED INTEGRITA STRUTTURALE-FRACTURE AND STRUCTURAL INTEGRITY, 2019, 13 (49): : 26 - 35
[2] Ratchetting strain as a driving force for fatigue crack growth
Tong, J.
Zhao, L. G.
Lin, B.
INTERNATIONAL JOURNAL OF FATIGUE, 2013, 46 : 49 - 57
[3] Examination of fatigue crack driving force parameter
Xiong, Y.
Katsuta, J.
Kawano, K.
Sakiyama, T.
FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES, 2008, 31 (09) : 754 - 765
[4] A two parameter driving force for fatigue crack growth analysis
Noroozi, AH
Glinka, G
Lambert, S
INTERNATIONAL JOURNAL OF FATIGUE, 2005, 27 (10-12) : 1277 - 1296
[5] Application of a New, Energy-Based S* Crack Driving Force for Fatigue Crack Growth Rate Description
Lesiuk, Grzegorz
MATERIALS, 2019, 12 (03)
[6] Crack shapes and crack driving force distributions for naturally growing fatigue cracks
Escalero, Mikel
Muniz-Calvente, Miguel
Zabala, Haritz
Urresti, Iker
ENGINEERING FRACTURE MECHANICS, 2023, 277
[7] A modification of UniGrow 2-parameter driving force model for short fatigue crack growth
Bang, D. J.
Ince, A.
Tang, L. Q.
FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES, 2019, 42 (01) : 45 - 60
[8] A fatigue crack driving force parameter with load ratio effects
Kujawski, D
INTERNATIONAL JOURNAL OF FATIGUE, 2001, 23 : S239 - S246
[9] A NEW MODEL OF TWO-PARAMETER DRIVING FORCE FOR FATIGUE CRACK GROWTH
Xiong Ying
ACTA METALLURGICA SINICA, 2008, 44 (11) : 1348 - 1353
[10] A study of the stress ratio effects on fatigue crack growth using the unified two-parameter fatigue crack growth driving force
Noroozi, A. H.
Glinka, G.
Lambert, S.
INTERNATIONAL JOURNAL OF FATIGUE, 2007, 29 (9-11) : 1616 - 1633

← 1 2 3 4 5 →