Rapid evaluation of notch stress intensity factors using the peak stress method: Comparison of commercial finite element codes for a range of mesh patterns

被引：46

作者：

Meneghetti, G. ^{[1
]}

Campagnolo, A. ^{[1
]}

Avalle, M. ^{[2
]}

Castagnetti, D. ^{[3
]}

Colussi, M. ^{[4
]}

Corigliano, P. ^{[5
]}

De Agostinis, M. ^{[6
]}

Dragoni, E. ^{[3
]}

Fontanari, V. ^{[7
]}

Frendo, F. ^{[8
]}

Goglio, L. ^{[9
]}

Marannano, G. ^{[10
]}

Marulo, G. ^{[8
]}

Moroni, F. ^{[11
]}

Pantano, A. ^{[10
]}

Rebora, A. ^{[2
]}

Scattina, A. ^{[9
]}

Spaggiari, A. ^{[3
]}

Zuccarello, B. ^{[10
]}

机构：

[1] Univ Padua, Dept Ind Engn, Via Venezia 1, I-35131 Padua, Italy

[2] Univ Genoa, Dept Mech Energy Management & Transportat Engn, Via Opera Pia 15, I-16145 Genoa, Italy

[3] Univ Modena & Reggio Emilia, Dept Sci & Methods Engn, Via Amendola 2, I-42122 Reggio Emilia, Italy

[4] Univ Padua, Dept Management & Engn, Stradella San Nicola 3, I-36100 Vicenza, Italy

[5] Univ Messina, Dept Engn, I-98166 Messina, Italy

[6] Univ Bologna, Dept Ind Engn, Viale Risorgimento 2, I-40136 Bologna, Italy

[7] Univ Trento, Dept Ind Engn, Via Sommar 9, I-38123 Povo, Trento, Italy

[8] Univ Pisa, Dept Civil & Ind Engn, Largo L Lazzarino 2, I-56122 Pisa, Italy

[9] Politecn Torino, Dept Mech & Aeronaut Engn, Corso Duca Abruzzi 24, I-10129 Turin, Italy

[10] Univ Palermo, Dept Ind & Digital Innovat, Viale Sci, I-90128 Palermo, Italy

[11] Univ Parma, Dept Engn & Architecture, Via GP Usberti 181-A, I-43124 Parma, Italy

来源：

FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES | 2018年 / 41卷 / 05期

关键词：

coarse mesh; finite element (FE) analysis; notch stress intensity factor (NSIF); peak stress method (PSM); FATIGUE-STRENGTH ASSESSMENT; WELDED-JOINTS; MODE-I; INITIATION; ALUMINUM; FAILURE; STEEL; TOE;

D O I：

10.1111/ffe.12751

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The peak stress method (PSM) is an engineering, finite element (FE)-oriented method to rapidly estimate the notch stress intensity factors by using the singular linear elastic peak stresses calculated from coarse FE analyses. The average element size adopted to generate the mesh pattern can be chosen arbitrarily within a given range. Originally, the PSM has been calibrated under pure mode I and pure mode II loadings by means of Ansys FE software. In the present contribution, a round robin between 10 Italian universities has been carried out to calibrate the PSM with 7 different commercial FE codes. To this aim, several two-dimensional mode I and mode II problems have been analysed independently by the participants. The obtained results have been used to calibrate the PSM for given stress analysis conditions in (i) FE software, (ii) element type and element formulation, (iii) mesh pattern, and (iv) criteria for stress extrapolation and principal stress analysis at FE nodes.

引用

页码：1044 / 1063

页数：20

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